1097055e2SEdward Tomasz Napierala /*- 2097055e2SEdward Tomasz Napierala * Copyright (c) 2010 The FreeBSD Foundation 3097055e2SEdward Tomasz Napierala * All rights reserved. 4097055e2SEdward Tomasz Napierala * 5097055e2SEdward Tomasz Napierala * This software was developed by Edward Tomasz Napierala under sponsorship 6097055e2SEdward Tomasz Napierala * from the FreeBSD Foundation. 7097055e2SEdward Tomasz Napierala * 8097055e2SEdward Tomasz Napierala * Redistribution and use in source and binary forms, with or without 9097055e2SEdward Tomasz Napierala * modification, are permitted provided that the following conditions 10097055e2SEdward Tomasz Napierala * are met: 11097055e2SEdward Tomasz Napierala * 1. Redistributions of source code must retain the above copyright 12097055e2SEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer. 13097055e2SEdward Tomasz Napierala * 2. Redistributions in binary form must reproduce the above copyright 14097055e2SEdward Tomasz Napierala * notice, this list of conditions and the following disclaimer in the 15097055e2SEdward Tomasz Napierala * documentation and/or other materials provided with the distribution. 16097055e2SEdward Tomasz Napierala * 17097055e2SEdward Tomasz Napierala * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18097055e2SEdward Tomasz Napierala * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19097055e2SEdward Tomasz Napierala * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20097055e2SEdward Tomasz Napierala * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21097055e2SEdward Tomasz Napierala * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22097055e2SEdward Tomasz Napierala * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23097055e2SEdward Tomasz Napierala * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24097055e2SEdward Tomasz Napierala * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25097055e2SEdward Tomasz Napierala * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26097055e2SEdward Tomasz Napierala * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27097055e2SEdward Tomasz Napierala * SUCH DAMAGE. 28097055e2SEdward Tomasz Napierala * 29097055e2SEdward Tomasz Napierala * $FreeBSD$ 30097055e2SEdward Tomasz Napierala */ 31097055e2SEdward Tomasz Napierala 32097055e2SEdward Tomasz Napierala #include <sys/cdefs.h> 33097055e2SEdward Tomasz Napierala __FBSDID("$FreeBSD$"); 34097055e2SEdward Tomasz Napierala 3536af9869SEdward Tomasz Napierala #include "opt_sched.h" 36097055e2SEdward Tomasz Napierala 37097055e2SEdward Tomasz Napierala #include <sys/param.h> 38ae34b6ffSEdward Tomasz Napierala #include <sys/buf.h> 390e225211SAndriy Gapon #include <sys/systm.h> 40097055e2SEdward Tomasz Napierala #include <sys/eventhandler.h> 41097055e2SEdward Tomasz Napierala #include <sys/jail.h> 42097055e2SEdward Tomasz Napierala #include <sys/kernel.h> 43097055e2SEdward Tomasz Napierala #include <sys/kthread.h> 44097055e2SEdward Tomasz Napierala #include <sys/lock.h> 45097055e2SEdward Tomasz Napierala #include <sys/loginclass.h> 46097055e2SEdward Tomasz Napierala #include <sys/malloc.h> 47097055e2SEdward Tomasz Napierala #include <sys/mutex.h> 48097055e2SEdward Tomasz Napierala #include <sys/proc.h> 49097055e2SEdward Tomasz Napierala #include <sys/racct.h> 50097055e2SEdward Tomasz Napierala #include <sys/resourcevar.h> 51097055e2SEdward Tomasz Napierala #include <sys/sbuf.h> 52097055e2SEdward Tomasz Napierala #include <sys/sched.h> 53097055e2SEdward Tomasz Napierala #include <sys/sdt.h> 5436af9869SEdward Tomasz Napierala #include <sys/smp.h> 55097055e2SEdward Tomasz Napierala #include <sys/sx.h> 5636af9869SEdward Tomasz Napierala #include <sys/sysctl.h> 57097055e2SEdward Tomasz Napierala #include <sys/sysent.h> 58097055e2SEdward Tomasz Napierala #include <sys/sysproto.h> 59097055e2SEdward Tomasz Napierala #include <sys/umtx.h> 6036af9869SEdward Tomasz Napierala #include <machine/smp.h> 61097055e2SEdward Tomasz Napierala 62097055e2SEdward Tomasz Napierala #ifdef RCTL 63097055e2SEdward Tomasz Napierala #include <sys/rctl.h> 64097055e2SEdward Tomasz Napierala #endif 65097055e2SEdward Tomasz Napierala 66097055e2SEdward Tomasz Napierala #ifdef RACCT 67097055e2SEdward Tomasz Napierala 68097055e2SEdward Tomasz Napierala FEATURE(racct, "Resource Accounting"); 69097055e2SEdward Tomasz Napierala 7036af9869SEdward Tomasz Napierala /* 7136af9869SEdward Tomasz Napierala * Do not block processes that have their %cpu usage <= pcpu_threshold. 7236af9869SEdward Tomasz Napierala */ 7336af9869SEdward Tomasz Napierala static int pcpu_threshold = 1; 74ba8f0eb8SEdward Tomasz Napierala #ifdef RACCT_DEFAULT_TO_DISABLED 754b5c9cf6SEdward Tomasz Napierala int racct_enable = 0; 764b5c9cf6SEdward Tomasz Napierala #else 774b5c9cf6SEdward Tomasz Napierala int racct_enable = 1; 784b5c9cf6SEdward Tomasz Napierala #endif 7936af9869SEdward Tomasz Napierala 8036af9869SEdward Tomasz Napierala SYSCTL_NODE(_kern, OID_AUTO, racct, CTLFLAG_RW, 0, "Resource Accounting"); 814b5c9cf6SEdward Tomasz Napierala SYSCTL_UINT(_kern_racct, OID_AUTO, enable, CTLFLAG_RDTUN, &racct_enable, 824b5c9cf6SEdward Tomasz Napierala 0, "Enable RACCT/RCTL"); 8336af9869SEdward Tomasz Napierala SYSCTL_UINT(_kern_racct, OID_AUTO, pcpu_threshold, CTLFLAG_RW, &pcpu_threshold, 8436af9869SEdward Tomasz Napierala 0, "Processes with higher %cpu usage than this value can be throttled."); 8536af9869SEdward Tomasz Napierala 8636af9869SEdward Tomasz Napierala /* 8736af9869SEdward Tomasz Napierala * How many seconds it takes to use the scheduler %cpu calculations. When a 8836af9869SEdward Tomasz Napierala * process starts, we compute its %cpu usage by dividing its runtime by the 8936af9869SEdward Tomasz Napierala * process wall clock time. After RACCT_PCPU_SECS pass, we use the value 9036af9869SEdward Tomasz Napierala * provided by the scheduler. 9136af9869SEdward Tomasz Napierala */ 9236af9869SEdward Tomasz Napierala #define RACCT_PCPU_SECS 3 9336af9869SEdward Tomasz Napierala 94097055e2SEdward Tomasz Napierala static struct mtx racct_lock; 95097055e2SEdward Tomasz Napierala MTX_SYSINIT(racct_lock, &racct_lock, "racct lock", MTX_DEF); 96097055e2SEdward Tomasz Napierala 974c230cdaSEdward Tomasz Napierala #define RACCT_LOCK() mtx_lock(&racct_lock) 984c230cdaSEdward Tomasz Napierala #define RACCT_UNLOCK() mtx_unlock(&racct_lock) 994c230cdaSEdward Tomasz Napierala #define RACCT_LOCK_ASSERT() mtx_assert(&racct_lock, MA_OWNED) 1004c230cdaSEdward Tomasz Napierala 101097055e2SEdward Tomasz Napierala static uma_zone_t racct_zone; 102097055e2SEdward Tomasz Napierala 103097055e2SEdward Tomasz Napierala static void racct_sub_racct(struct racct *dest, const struct racct *src); 104097055e2SEdward Tomasz Napierala static void racct_sub_cred_locked(struct ucred *cred, int resource, 105097055e2SEdward Tomasz Napierala uint64_t amount); 106097055e2SEdward Tomasz Napierala static void racct_add_cred_locked(struct ucred *cred, int resource, 107097055e2SEdward Tomasz Napierala uint64_t amount); 108097055e2SEdward Tomasz Napierala 109097055e2SEdward Tomasz Napierala SDT_PROVIDER_DEFINE(racct); 11036160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add, 111097055e2SEdward Tomasz Napierala "struct proc *", "int", "uint64_t"); 11236160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add__failure, 113097055e2SEdward Tomasz Napierala "struct proc *", "int", "uint64_t"); 11436160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add__cred, 11536160958SMark Johnston "struct ucred *", "int", "uint64_t"); 11636160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add__force, 11736160958SMark Johnston "struct proc *", "int", "uint64_t"); 11836160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, set, 11936160958SMark Johnston "struct proc *", "int", "uint64_t"); 12036160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, set__failure, 12136160958SMark Johnston "struct proc *", "int", "uint64_t"); 12210287198SEdward Tomasz Napierala SDT_PROBE_DEFINE3(racct, , rusage, set__force, 12310287198SEdward Tomasz Napierala "struct proc *", "int", "uint64_t"); 12436160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, sub, 12536160958SMark Johnston "struct proc *", "int", "uint64_t"); 12636160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, sub__cred, 12736160958SMark Johnston "struct ucred *", "int", "uint64_t"); 12836160958SMark Johnston SDT_PROBE_DEFINE1(racct, , racct, create, 129097055e2SEdward Tomasz Napierala "struct racct *"); 13036160958SMark Johnston SDT_PROBE_DEFINE1(racct, , racct, destroy, 13136160958SMark Johnston "struct racct *"); 13236160958SMark Johnston SDT_PROBE_DEFINE2(racct, , racct, join, 133097055e2SEdward Tomasz Napierala "struct racct *", "struct racct *"); 13436160958SMark Johnston SDT_PROBE_DEFINE2(racct, , racct, join__failure, 13536160958SMark Johnston "struct racct *", "struct racct *"); 13636160958SMark Johnston SDT_PROBE_DEFINE2(racct, , racct, leave, 13736160958SMark Johnston "struct racct *", "struct racct *"); 138097055e2SEdward Tomasz Napierala 139097055e2SEdward Tomasz Napierala int racct_types[] = { 140097055e2SEdward Tomasz Napierala [RACCT_CPU] = 14185a2f1b4SEdward Tomasz Napierala RACCT_IN_MILLIONS, 142097055e2SEdward Tomasz Napierala [RACCT_DATA] = 143097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 144097055e2SEdward Tomasz Napierala [RACCT_STACK] = 145097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 146097055e2SEdward Tomasz Napierala [RACCT_CORE] = 147097055e2SEdward Tomasz Napierala RACCT_DENIABLE, 148097055e2SEdward Tomasz Napierala [RACCT_RSS] = 149097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE, 150097055e2SEdward Tomasz Napierala [RACCT_MEMLOCK] = 151097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE, 152097055e2SEdward Tomasz Napierala [RACCT_NPROC] = 153097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE, 154097055e2SEdward Tomasz Napierala [RACCT_NOFILE] = 155097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 156097055e2SEdward Tomasz Napierala [RACCT_VMEM] = 157097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 158097055e2SEdward Tomasz Napierala [RACCT_NPTS] = 159097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 160097055e2SEdward Tomasz Napierala [RACCT_SWAP] = 161097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 162097055e2SEdward Tomasz Napierala [RACCT_NTHR] = 163097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE, 164097055e2SEdward Tomasz Napierala [RACCT_MSGQQUEUED] = 165097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 166097055e2SEdward Tomasz Napierala [RACCT_MSGQSIZE] = 167097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 168097055e2SEdward Tomasz Napierala [RACCT_NMSGQ] = 169097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 170097055e2SEdward Tomasz Napierala [RACCT_NSEM] = 171097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 172097055e2SEdward Tomasz Napierala [RACCT_NSEMOP] = 173097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 174097055e2SEdward Tomasz Napierala [RACCT_NSHM] = 175097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 176097055e2SEdward Tomasz Napierala [RACCT_SHMSIZE] = 177097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 178097055e2SEdward Tomasz Napierala [RACCT_WALLCLOCK] = 17936af9869SEdward Tomasz Napierala RACCT_IN_MILLIONS, 18036af9869SEdward Tomasz Napierala [RACCT_PCTCPU] = 181ae34b6ffSEdward Tomasz Napierala RACCT_DECAYING | RACCT_DENIABLE | RACCT_IN_MILLIONS, 182ae34b6ffSEdward Tomasz Napierala [RACCT_READBPS] = 183ae34b6ffSEdward Tomasz Napierala RACCT_DECAYING, 184ae34b6ffSEdward Tomasz Napierala [RACCT_WRITEBPS] = 185ae34b6ffSEdward Tomasz Napierala RACCT_DECAYING, 186ae34b6ffSEdward Tomasz Napierala [RACCT_READIOPS] = 187ae34b6ffSEdward Tomasz Napierala RACCT_DECAYING, 188ae34b6ffSEdward Tomasz Napierala [RACCT_WRITEIOPS] = 189ae34b6ffSEdward Tomasz Napierala RACCT_DECAYING }; 19036af9869SEdward Tomasz Napierala 19136af9869SEdward Tomasz Napierala static const fixpt_t RACCT_DECAY_FACTOR = 0.3 * FSCALE; 19236af9869SEdward Tomasz Napierala 19336af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 19436af9869SEdward Tomasz Napierala /* 19536af9869SEdward Tomasz Napierala * Contains intermediate values for %cpu calculations to avoid using floating 19636af9869SEdward Tomasz Napierala * point in the kernel. 19736af9869SEdward Tomasz Napierala * ccpu_exp[k] = FSCALE * (ccpu/FSCALE)^k = FSCALE * exp(-k/20) 19836af9869SEdward Tomasz Napierala * It is needed only for the 4BSD scheduler, because in ULE, the ccpu equals to 19936af9869SEdward Tomasz Napierala * zero so the calculations are more straightforward. 20036af9869SEdward Tomasz Napierala */ 20136af9869SEdward Tomasz Napierala fixpt_t ccpu_exp[] = { 20236af9869SEdward Tomasz Napierala [0] = FSCALE * 1, 20336af9869SEdward Tomasz Napierala [1] = FSCALE * 0.95122942450071400909, 20436af9869SEdward Tomasz Napierala [2] = FSCALE * 0.90483741803595957316, 20536af9869SEdward Tomasz Napierala [3] = FSCALE * 0.86070797642505780722, 20636af9869SEdward Tomasz Napierala [4] = FSCALE * 0.81873075307798185866, 20736af9869SEdward Tomasz Napierala [5] = FSCALE * 0.77880078307140486824, 20836af9869SEdward Tomasz Napierala [6] = FSCALE * 0.74081822068171786606, 20936af9869SEdward Tomasz Napierala [7] = FSCALE * 0.70468808971871343435, 21036af9869SEdward Tomasz Napierala [8] = FSCALE * 0.67032004603563930074, 21136af9869SEdward Tomasz Napierala [9] = FSCALE * 0.63762815162177329314, 21236af9869SEdward Tomasz Napierala [10] = FSCALE * 0.60653065971263342360, 21336af9869SEdward Tomasz Napierala [11] = FSCALE * 0.57694981038048669531, 21436af9869SEdward Tomasz Napierala [12] = FSCALE * 0.54881163609402643262, 21536af9869SEdward Tomasz Napierala [13] = FSCALE * 0.52204577676101604789, 21636af9869SEdward Tomasz Napierala [14] = FSCALE * 0.49658530379140951470, 21736af9869SEdward Tomasz Napierala [15] = FSCALE * 0.47236655274101470713, 21836af9869SEdward Tomasz Napierala [16] = FSCALE * 0.44932896411722159143, 21936af9869SEdward Tomasz Napierala [17] = FSCALE * 0.42741493194872666992, 22036af9869SEdward Tomasz Napierala [18] = FSCALE * 0.40656965974059911188, 22136af9869SEdward Tomasz Napierala [19] = FSCALE * 0.38674102345450120691, 22236af9869SEdward Tomasz Napierala [20] = FSCALE * 0.36787944117144232159, 22336af9869SEdward Tomasz Napierala [21] = FSCALE * 0.34993774911115535467, 22436af9869SEdward Tomasz Napierala [22] = FSCALE * 0.33287108369807955328, 22536af9869SEdward Tomasz Napierala [23] = FSCALE * 0.31663676937905321821, 22636af9869SEdward Tomasz Napierala [24] = FSCALE * 0.30119421191220209664, 22736af9869SEdward Tomasz Napierala [25] = FSCALE * 0.28650479686019010032, 22836af9869SEdward Tomasz Napierala [26] = FSCALE * 0.27253179303401260312, 22936af9869SEdward Tomasz Napierala [27] = FSCALE * 0.25924026064589150757, 23036af9869SEdward Tomasz Napierala [28] = FSCALE * 0.24659696394160647693, 23136af9869SEdward Tomasz Napierala [29] = FSCALE * 0.23457028809379765313, 23236af9869SEdward Tomasz Napierala [30] = FSCALE * 0.22313016014842982893, 23336af9869SEdward Tomasz Napierala [31] = FSCALE * 0.21224797382674305771, 23436af9869SEdward Tomasz Napierala [32] = FSCALE * 0.20189651799465540848, 23536af9869SEdward Tomasz Napierala [33] = FSCALE * 0.19204990862075411423, 23636af9869SEdward Tomasz Napierala [34] = FSCALE * 0.18268352405273465022, 23736af9869SEdward Tomasz Napierala [35] = FSCALE * 0.17377394345044512668, 23836af9869SEdward Tomasz Napierala [36] = FSCALE * 0.16529888822158653829, 23936af9869SEdward Tomasz Napierala [37] = FSCALE * 0.15723716631362761621, 24036af9869SEdward Tomasz Napierala [38] = FSCALE * 0.14956861922263505264, 24136af9869SEdward Tomasz Napierala [39] = FSCALE * 0.14227407158651357185, 24236af9869SEdward Tomasz Napierala [40] = FSCALE * 0.13533528323661269189, 24336af9869SEdward Tomasz Napierala [41] = FSCALE * 0.12873490358780421886, 24436af9869SEdward Tomasz Napierala [42] = FSCALE * 0.12245642825298191021, 24536af9869SEdward Tomasz Napierala [43] = FSCALE * 0.11648415777349695786, 24636af9869SEdward Tomasz Napierala [44] = FSCALE * 0.11080315836233388333, 24736af9869SEdward Tomasz Napierala [45] = FSCALE * 0.10539922456186433678, 24836af9869SEdward Tomasz Napierala [46] = FSCALE * 0.10025884372280373372, 24936af9869SEdward Tomasz Napierala [47] = FSCALE * 0.09536916221554961888, 25036af9869SEdward Tomasz Napierala [48] = FSCALE * 0.09071795328941250337, 25136af9869SEdward Tomasz Napierala [49] = FSCALE * 0.08629358649937051097, 25236af9869SEdward Tomasz Napierala [50] = FSCALE * 0.08208499862389879516, 25336af9869SEdward Tomasz Napierala [51] = FSCALE * 0.07808166600115315231, 25436af9869SEdward Tomasz Napierala [52] = FSCALE * 0.07427357821433388042, 25536af9869SEdward Tomasz Napierala [53] = FSCALE * 0.07065121306042958674, 25636af9869SEdward Tomasz Napierala [54] = FSCALE * 0.06720551273974976512, 25736af9869SEdward Tomasz Napierala [55] = FSCALE * 0.06392786120670757270, 25836af9869SEdward Tomasz Napierala [56] = FSCALE * 0.06081006262521796499, 25936af9869SEdward Tomasz Napierala [57] = FSCALE * 0.05784432087483846296, 26036af9869SEdward Tomasz Napierala [58] = FSCALE * 0.05502322005640722902, 26136af9869SEdward Tomasz Napierala [59] = FSCALE * 0.05233970594843239308, 26236af9869SEdward Tomasz Napierala [60] = FSCALE * 0.04978706836786394297, 26336af9869SEdward Tomasz Napierala [61] = FSCALE * 0.04735892439114092119, 26436af9869SEdward Tomasz Napierala [62] = FSCALE * 0.04504920239355780606, 26536af9869SEdward Tomasz Napierala [63] = FSCALE * 0.04285212686704017991, 26636af9869SEdward Tomasz Napierala [64] = FSCALE * 0.04076220397836621516, 26736af9869SEdward Tomasz Napierala [65] = FSCALE * 0.03877420783172200988, 26836af9869SEdward Tomasz Napierala [66] = FSCALE * 0.03688316740124000544, 26936af9869SEdward Tomasz Napierala [67] = FSCALE * 0.03508435410084502588, 27036af9869SEdward Tomasz Napierala [68] = FSCALE * 0.03337326996032607948, 27136af9869SEdward Tomasz Napierala [69] = FSCALE * 0.03174563637806794323, 27236af9869SEdward Tomasz Napierala [70] = FSCALE * 0.03019738342231850073, 27336af9869SEdward Tomasz Napierala [71] = FSCALE * 0.02872463965423942912, 27436af9869SEdward Tomasz Napierala [72] = FSCALE * 0.02732372244729256080, 27536af9869SEdward Tomasz Napierala [73] = FSCALE * 0.02599112877875534358, 27636af9869SEdward Tomasz Napierala [74] = FSCALE * 0.02472352647033939120, 27736af9869SEdward Tomasz Napierala [75] = FSCALE * 0.02351774585600910823, 27836af9869SEdward Tomasz Napierala [76] = FSCALE * 0.02237077185616559577, 27936af9869SEdward Tomasz Napierala [77] = FSCALE * 0.02127973643837716938, 28036af9869SEdward Tomasz Napierala [78] = FSCALE * 0.02024191144580438847, 28136af9869SEdward Tomasz Napierala [79] = FSCALE * 0.01925470177538692429, 28236af9869SEdward Tomasz Napierala [80] = FSCALE * 0.01831563888873418029, 28336af9869SEdward Tomasz Napierala [81] = FSCALE * 0.01742237463949351138, 28436af9869SEdward Tomasz Napierala [82] = FSCALE * 0.01657267540176124754, 28536af9869SEdward Tomasz Napierala [83] = FSCALE * 0.01576441648485449082, 28636af9869SEdward Tomasz Napierala [84] = FSCALE * 0.01499557682047770621, 28736af9869SEdward Tomasz Napierala [85] = FSCALE * 0.01426423390899925527, 28836af9869SEdward Tomasz Napierala [86] = FSCALE * 0.01356855901220093175, 28936af9869SEdward Tomasz Napierala [87] = FSCALE * 0.01290681258047986886, 29036af9869SEdward Tomasz Napierala [88] = FSCALE * 0.01227733990306844117, 29136af9869SEdward Tomasz Napierala [89] = FSCALE * 0.01167856697039544521, 29236af9869SEdward Tomasz Napierala [90] = FSCALE * 0.01110899653824230649, 29336af9869SEdward Tomasz Napierala [91] = FSCALE * 0.01056720438385265337, 29436af9869SEdward Tomasz Napierala [92] = FSCALE * 0.01005183574463358164, 29536af9869SEdward Tomasz Napierala [93] = FSCALE * 0.00956160193054350793, 29636af9869SEdward Tomasz Napierala [94] = FSCALE * 0.00909527710169581709, 29736af9869SEdward Tomasz Napierala [95] = FSCALE * 0.00865169520312063417, 29836af9869SEdward Tomasz Napierala [96] = FSCALE * 0.00822974704902002884, 29936af9869SEdward Tomasz Napierala [97] = FSCALE * 0.00782837754922577143, 30036af9869SEdward Tomasz Napierala [98] = FSCALE * 0.00744658307092434051, 30136af9869SEdward Tomasz Napierala [99] = FSCALE * 0.00708340892905212004, 30236af9869SEdward Tomasz Napierala [100] = FSCALE * 0.00673794699908546709, 30336af9869SEdward Tomasz Napierala [101] = FSCALE * 0.00640933344625638184, 30436af9869SEdward Tomasz Napierala [102] = FSCALE * 0.00609674656551563610, 30536af9869SEdward Tomasz Napierala [103] = FSCALE * 0.00579940472684214321, 30636af9869SEdward Tomasz Napierala [104] = FSCALE * 0.00551656442076077241, 30736af9869SEdward Tomasz Napierala [105] = FSCALE * 0.00524751839918138427, 30836af9869SEdward Tomasz Napierala [106] = FSCALE * 0.00499159390691021621, 30936af9869SEdward Tomasz Napierala [107] = FSCALE * 0.00474815099941147558, 31036af9869SEdward Tomasz Napierala [108] = FSCALE * 0.00451658094261266798, 31136af9869SEdward Tomasz Napierala [109] = FSCALE * 0.00429630469075234057, 31236af9869SEdward Tomasz Napierala [110] = FSCALE * 0.00408677143846406699, 31336af9869SEdward Tomasz Napierala }; 31436af9869SEdward Tomasz Napierala #endif 31536af9869SEdward Tomasz Napierala 31636af9869SEdward Tomasz Napierala #define CCPU_EXP_MAX 110 31736af9869SEdward Tomasz Napierala 31836af9869SEdward Tomasz Napierala /* 31936af9869SEdward Tomasz Napierala * This function is analogical to the getpcpu() function in the ps(1) command. 32036af9869SEdward Tomasz Napierala * They should both calculate in the same way so that the racct %cpu 32136af9869SEdward Tomasz Napierala * calculations are consistent with the values showed by the ps(1) tool. 32236af9869SEdward Tomasz Napierala * The calculations are more complex in the 4BSD scheduler because of the value 32336af9869SEdward Tomasz Napierala * of the ccpu variable. In ULE it is defined to be zero which saves us some 32436af9869SEdward Tomasz Napierala * work. 32536af9869SEdward Tomasz Napierala */ 32636af9869SEdward Tomasz Napierala static uint64_t 32736af9869SEdward Tomasz Napierala racct_getpcpu(struct proc *p, u_int pcpu) 32836af9869SEdward Tomasz Napierala { 32936af9869SEdward Tomasz Napierala u_int swtime; 33036af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 33136af9869SEdward Tomasz Napierala fixpt_t pctcpu, pctcpu_next; 33236af9869SEdward Tomasz Napierala #endif 33336af9869SEdward Tomasz Napierala #ifdef SMP 33436af9869SEdward Tomasz Napierala struct pcpu *pc; 33536af9869SEdward Tomasz Napierala int found; 33636af9869SEdward Tomasz Napierala #endif 33736af9869SEdward Tomasz Napierala fixpt_t p_pctcpu; 33836af9869SEdward Tomasz Napierala struct thread *td; 33936af9869SEdward Tomasz Napierala 3404b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 3414b5c9cf6SEdward Tomasz Napierala 34236af9869SEdward Tomasz Napierala /* 34336af9869SEdward Tomasz Napierala * If the process is swapped out, we count its %cpu usage as zero. 34436af9869SEdward Tomasz Napierala * This behaviour is consistent with the userland ps(1) tool. 34536af9869SEdward Tomasz Napierala */ 34636af9869SEdward Tomasz Napierala if ((p->p_flag & P_INMEM) == 0) 34736af9869SEdward Tomasz Napierala return (0); 34836af9869SEdward Tomasz Napierala swtime = (ticks - p->p_swtick) / hz; 34936af9869SEdward Tomasz Napierala 35036af9869SEdward Tomasz Napierala /* 35136af9869SEdward Tomasz Napierala * For short-lived processes, the sched_pctcpu() returns small 35236af9869SEdward Tomasz Napierala * values even for cpu intensive processes. Therefore we use 35336af9869SEdward Tomasz Napierala * our own estimate in this case. 35436af9869SEdward Tomasz Napierala */ 35536af9869SEdward Tomasz Napierala if (swtime < RACCT_PCPU_SECS) 35636af9869SEdward Tomasz Napierala return (pcpu); 35736af9869SEdward Tomasz Napierala 35836af9869SEdward Tomasz Napierala p_pctcpu = 0; 35936af9869SEdward Tomasz Napierala FOREACH_THREAD_IN_PROC(p, td) { 36036af9869SEdward Tomasz Napierala if (td == PCPU_GET(idlethread)) 36136af9869SEdward Tomasz Napierala continue; 36236af9869SEdward Tomasz Napierala #ifdef SMP 36336af9869SEdward Tomasz Napierala found = 0; 36436af9869SEdward Tomasz Napierala STAILQ_FOREACH(pc, &cpuhead, pc_allcpu) { 36536af9869SEdward Tomasz Napierala if (td == pc->pc_idlethread) { 36636af9869SEdward Tomasz Napierala found = 1; 36736af9869SEdward Tomasz Napierala break; 36836af9869SEdward Tomasz Napierala } 36936af9869SEdward Tomasz Napierala } 37036af9869SEdward Tomasz Napierala if (found) 37136af9869SEdward Tomasz Napierala continue; 37236af9869SEdward Tomasz Napierala #endif 37336af9869SEdward Tomasz Napierala thread_lock(td); 37436af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 37536af9869SEdward Tomasz Napierala pctcpu = sched_pctcpu(td); 37636af9869SEdward Tomasz Napierala /* Count also the yet unfinished second. */ 37736af9869SEdward Tomasz Napierala pctcpu_next = (pctcpu * ccpu_exp[1]) >> FSHIFT; 37836af9869SEdward Tomasz Napierala pctcpu_next += sched_pctcpu_delta(td); 37936af9869SEdward Tomasz Napierala p_pctcpu += max(pctcpu, pctcpu_next); 38036af9869SEdward Tomasz Napierala #else 38136af9869SEdward Tomasz Napierala /* 38236af9869SEdward Tomasz Napierala * In ULE the %cpu statistics are updated on every 38336af9869SEdward Tomasz Napierala * sched_pctcpu() call. So special calculations to 38436af9869SEdward Tomasz Napierala * account for the latest (unfinished) second are 38536af9869SEdward Tomasz Napierala * not needed. 38636af9869SEdward Tomasz Napierala */ 38736af9869SEdward Tomasz Napierala p_pctcpu += sched_pctcpu(td); 38836af9869SEdward Tomasz Napierala #endif 38936af9869SEdward Tomasz Napierala thread_unlock(td); 39036af9869SEdward Tomasz Napierala } 39136af9869SEdward Tomasz Napierala 39236af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 39336af9869SEdward Tomasz Napierala if (swtime <= CCPU_EXP_MAX) 39436af9869SEdward Tomasz Napierala return ((100 * (uint64_t)p_pctcpu * 1000000) / 39536af9869SEdward Tomasz Napierala (FSCALE - ccpu_exp[swtime])); 39636af9869SEdward Tomasz Napierala #endif 39736af9869SEdward Tomasz Napierala 39836af9869SEdward Tomasz Napierala return ((100 * (uint64_t)p_pctcpu * 1000000) / FSCALE); 39936af9869SEdward Tomasz Napierala } 400097055e2SEdward Tomasz Napierala 401097055e2SEdward Tomasz Napierala static void 402097055e2SEdward Tomasz Napierala racct_add_racct(struct racct *dest, const struct racct *src) 403097055e2SEdward Tomasz Napierala { 404097055e2SEdward Tomasz Napierala int i; 405097055e2SEdward Tomasz Napierala 4064b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 4074c230cdaSEdward Tomasz Napierala RACCT_LOCK_ASSERT(); 408097055e2SEdward Tomasz Napierala 409097055e2SEdward Tomasz Napierala /* 410097055e2SEdward Tomasz Napierala * Update resource usage in dest. 411097055e2SEdward Tomasz Napierala */ 412097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 413097055e2SEdward Tomasz Napierala KASSERT(dest->r_resources[i] >= 0, 414baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: dest < 0", 415baf85d0aSEdward Tomasz Napierala __func__, i)); 416097055e2SEdward Tomasz Napierala KASSERT(src->r_resources[i] >= 0, 417baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: src < 0", 418baf85d0aSEdward Tomasz Napierala __func__, i)); 419097055e2SEdward Tomasz Napierala dest->r_resources[i] += src->r_resources[i]; 420097055e2SEdward Tomasz Napierala } 421097055e2SEdward Tomasz Napierala } 422097055e2SEdward Tomasz Napierala 423097055e2SEdward Tomasz Napierala static void 424097055e2SEdward Tomasz Napierala racct_sub_racct(struct racct *dest, const struct racct *src) 425097055e2SEdward Tomasz Napierala { 426097055e2SEdward Tomasz Napierala int i; 427097055e2SEdward Tomasz Napierala 4284b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 4294c230cdaSEdward Tomasz Napierala RACCT_LOCK_ASSERT(); 430097055e2SEdward Tomasz Napierala 431097055e2SEdward Tomasz Napierala /* 432097055e2SEdward Tomasz Napierala * Update resource usage in dest. 433097055e2SEdward Tomasz Napierala */ 434097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 43584c9193bSEdward Tomasz Napierala if (!RACCT_IS_SLOPPY(i) && !RACCT_IS_DECAYING(i)) { 436097055e2SEdward Tomasz Napierala KASSERT(dest->r_resources[i] >= 0, 437baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: dest < 0", 438baf85d0aSEdward Tomasz Napierala __func__, i)); 439097055e2SEdward Tomasz Napierala KASSERT(src->r_resources[i] >= 0, 440baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: src < 0", 441baf85d0aSEdward Tomasz Napierala __func__, i)); 442097055e2SEdward Tomasz Napierala KASSERT(src->r_resources[i] <= dest->r_resources[i], 443baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: src > dest", 444baf85d0aSEdward Tomasz Napierala __func__, i)); 445097055e2SEdward Tomasz Napierala } 44636af9869SEdward Tomasz Napierala if (RACCT_CAN_DROP(i)) { 447097055e2SEdward Tomasz Napierala dest->r_resources[i] -= src->r_resources[i]; 448097055e2SEdward Tomasz Napierala if (dest->r_resources[i] < 0) { 44984c9193bSEdward Tomasz Napierala KASSERT(RACCT_IS_SLOPPY(i) || 45084c9193bSEdward Tomasz Napierala RACCT_IS_DECAYING(i), 451baf85d0aSEdward Tomasz Napierala ("%s: resource %d usage < 0", __func__, i)); 452097055e2SEdward Tomasz Napierala dest->r_resources[i] = 0; 453097055e2SEdward Tomasz Napierala } 454097055e2SEdward Tomasz Napierala } 455097055e2SEdward Tomasz Napierala } 456097055e2SEdward Tomasz Napierala } 457097055e2SEdward Tomasz Napierala 458097055e2SEdward Tomasz Napierala void 459097055e2SEdward Tomasz Napierala racct_create(struct racct **racctp) 460097055e2SEdward Tomasz Napierala { 461097055e2SEdward Tomasz Napierala 4624b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 4634b5c9cf6SEdward Tomasz Napierala return; 4644b5c9cf6SEdward Tomasz Napierala 46536160958SMark Johnston SDT_PROBE1(racct, , racct, create, racctp); 466097055e2SEdward Tomasz Napierala 467097055e2SEdward Tomasz Napierala KASSERT(*racctp == NULL, ("racct already allocated")); 468097055e2SEdward Tomasz Napierala 469097055e2SEdward Tomasz Napierala *racctp = uma_zalloc(racct_zone, M_WAITOK | M_ZERO); 470097055e2SEdward Tomasz Napierala } 471097055e2SEdward Tomasz Napierala 472097055e2SEdward Tomasz Napierala static void 473097055e2SEdward Tomasz Napierala racct_destroy_locked(struct racct **racctp) 474097055e2SEdward Tomasz Napierala { 475097055e2SEdward Tomasz Napierala struct racct *racct; 476*c1a43e73SEdward Tomasz Napierala int i; 477097055e2SEdward Tomasz Napierala 4784b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 4794b5c9cf6SEdward Tomasz Napierala 48036160958SMark Johnston SDT_PROBE1(racct, , racct, destroy, racctp); 481097055e2SEdward Tomasz Napierala 4824c230cdaSEdward Tomasz Napierala RACCT_LOCK_ASSERT(); 483097055e2SEdward Tomasz Napierala KASSERT(racctp != NULL, ("NULL racctp")); 484097055e2SEdward Tomasz Napierala KASSERT(*racctp != NULL, ("NULL racct")); 485097055e2SEdward Tomasz Napierala 486097055e2SEdward Tomasz Napierala racct = *racctp; 487097055e2SEdward Tomasz Napierala 488097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 4894fe84775SEdward Tomasz Napierala if (RACCT_IS_SLOPPY(i)) 490097055e2SEdward Tomasz Napierala continue; 4914fe84775SEdward Tomasz Napierala if (!RACCT_IS_RECLAIMABLE(i)) 492097055e2SEdward Tomasz Napierala continue; 493097055e2SEdward Tomasz Napierala KASSERT(racct->r_resources[i] == 0, 494097055e2SEdward Tomasz Napierala ("destroying non-empty racct: " 495097055e2SEdward Tomasz Napierala "%ju allocated for resource %d\n", 496097055e2SEdward Tomasz Napierala racct->r_resources[i], i)); 497097055e2SEdward Tomasz Napierala } 498097055e2SEdward Tomasz Napierala uma_zfree(racct_zone, racct); 499097055e2SEdward Tomasz Napierala *racctp = NULL; 500097055e2SEdward Tomasz Napierala } 501097055e2SEdward Tomasz Napierala 502097055e2SEdward Tomasz Napierala void 503097055e2SEdward Tomasz Napierala racct_destroy(struct racct **racct) 504097055e2SEdward Tomasz Napierala { 505097055e2SEdward Tomasz Napierala 5064b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 5074b5c9cf6SEdward Tomasz Napierala return; 5084b5c9cf6SEdward Tomasz Napierala 5094c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 510097055e2SEdward Tomasz Napierala racct_destroy_locked(racct); 5114c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 512097055e2SEdward Tomasz Napierala } 513097055e2SEdward Tomasz Napierala 514097055e2SEdward Tomasz Napierala /* 515af1a7b25SEdward Tomasz Napierala * Increase consumption of 'resource' by 'amount' for 'racct', 516af1a7b25SEdward Tomasz Napierala * but not its parents. Differently from other cases, 'amount' here 517097055e2SEdward Tomasz Napierala * may be less than zero. 518097055e2SEdward Tomasz Napierala */ 519097055e2SEdward Tomasz Napierala static void 5203768a5dfSJeremie Le Hen racct_adjust_resource(struct racct *racct, int resource, 521a8e0740eSEdward Tomasz Napierala int64_t amount) 522097055e2SEdward Tomasz Napierala { 523097055e2SEdward Tomasz Napierala 5244b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 5254c230cdaSEdward Tomasz Napierala RACCT_LOCK_ASSERT(); 526097055e2SEdward Tomasz Napierala KASSERT(racct != NULL, ("NULL racct")); 527097055e2SEdward Tomasz Napierala 528097055e2SEdward Tomasz Napierala racct->r_resources[resource] += amount; 529097055e2SEdward Tomasz Napierala if (racct->r_resources[resource] < 0) { 53036af9869SEdward Tomasz Napierala KASSERT(RACCT_IS_SLOPPY(resource) || RACCT_IS_DECAYING(resource), 531baf85d0aSEdward Tomasz Napierala ("%s: resource %d usage < 0", __func__, resource)); 532097055e2SEdward Tomasz Napierala racct->r_resources[resource] = 0; 533097055e2SEdward Tomasz Napierala } 53436af9869SEdward Tomasz Napierala 53536af9869SEdward Tomasz Napierala /* 53636af9869SEdward Tomasz Napierala * There are some cases where the racct %cpu resource would grow 53709766dd5SJosh Paetzel * beyond 100% per core. For example in racct_proc_exit() we add 53809766dd5SJosh Paetzel * the process %cpu usage to the ucred racct containers. If too 53909766dd5SJosh Paetzel * many processes terminated in a short time span, the ucred %cpu 54009766dd5SJosh Paetzel * resource could grow too much. Also, the 4BSD scheduler sometimes 54109766dd5SJosh Paetzel * returns for a thread more than 100% cpu usage. So we set a sane 54209766dd5SJosh Paetzel * boundary here to 100% * the maxumum number of CPUs. 54336af9869SEdward Tomasz Napierala */ 54436af9869SEdward Tomasz Napierala if ((resource == RACCT_PCTCPU) && 54509766dd5SJosh Paetzel (racct->r_resources[RACCT_PCTCPU] > 100 * 1000000 * (int64_t)MAXCPU)) 54609766dd5SJosh Paetzel racct->r_resources[RACCT_PCTCPU] = 100 * 1000000 * (int64_t)MAXCPU; 547097055e2SEdward Tomasz Napierala } 548097055e2SEdward Tomasz Napierala 5492d8696d1SEdward Tomasz Napierala static int 5507cea96f6SEdward Tomasz Napierala racct_add_locked(struct proc *p, int resource, uint64_t amount, int force) 551097055e2SEdward Tomasz Napierala { 552097055e2SEdward Tomasz Napierala #ifdef RCTL 553097055e2SEdward Tomasz Napierala int error; 554097055e2SEdward Tomasz Napierala #endif 555097055e2SEdward Tomasz Napierala 5564b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 5574b5c9cf6SEdward Tomasz Napierala 558097055e2SEdward Tomasz Napierala /* 559097055e2SEdward Tomasz Napierala * We need proc lock to dereference p->p_ucred. 560097055e2SEdward Tomasz Napierala */ 561097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 562097055e2SEdward Tomasz Napierala 563097055e2SEdward Tomasz Napierala #ifdef RCTL 564097055e2SEdward Tomasz Napierala error = rctl_enforce(p, resource, amount); 565659e7466SEdward Tomasz Napierala if (error && !force && RACCT_IS_DENIABLE(resource)) { 56636160958SMark Johnston SDT_PROBE3(racct, , rusage, add__failure, p, resource, amount); 567097055e2SEdward Tomasz Napierala return (error); 568097055e2SEdward Tomasz Napierala } 569097055e2SEdward Tomasz Napierala #endif 5703768a5dfSJeremie Le Hen racct_adjust_resource(p->p_racct, resource, amount); 571097055e2SEdward Tomasz Napierala racct_add_cred_locked(p->p_ucred, resource, amount); 572097055e2SEdward Tomasz Napierala 573097055e2SEdward Tomasz Napierala return (0); 574097055e2SEdward Tomasz Napierala } 575097055e2SEdward Tomasz Napierala 5762d8696d1SEdward Tomasz Napierala /* 5772d8696d1SEdward Tomasz Napierala * Increase allocation of 'resource' by 'amount' for process 'p'. 5782d8696d1SEdward Tomasz Napierala * Return 0 if it's below limits, or errno, if it's not. 5792d8696d1SEdward Tomasz Napierala */ 5802d8696d1SEdward Tomasz Napierala int 5812d8696d1SEdward Tomasz Napierala racct_add(struct proc *p, int resource, uint64_t amount) 5822d8696d1SEdward Tomasz Napierala { 5832d8696d1SEdward Tomasz Napierala int error; 5842d8696d1SEdward Tomasz Napierala 5854b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 5864b5c9cf6SEdward Tomasz Napierala return (0); 5874b5c9cf6SEdward Tomasz Napierala 5887cea96f6SEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, add, p, resource, amount); 5897cea96f6SEdward Tomasz Napierala 5904c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 5917cea96f6SEdward Tomasz Napierala error = racct_add_locked(p, resource, amount, 0); 5924c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 5932d8696d1SEdward Tomasz Napierala return (error); 5942d8696d1SEdward Tomasz Napierala } 5952d8696d1SEdward Tomasz Napierala 5960b9f1ecbSEdward Tomasz Napierala /* 5970b9f1ecbSEdward Tomasz Napierala * Increase allocation of 'resource' by 'amount' for process 'p'. 5980b9f1ecbSEdward Tomasz Napierala * Doesn't check for limits and never fails. 5990b9f1ecbSEdward Tomasz Napierala */ 6000b9f1ecbSEdward Tomasz Napierala void 6010b9f1ecbSEdward Tomasz Napierala racct_add_force(struct proc *p, int resource, uint64_t amount) 6020b9f1ecbSEdward Tomasz Napierala { 6030b9f1ecbSEdward Tomasz Napierala 6040b9f1ecbSEdward Tomasz Napierala if (!racct_enable) 6050b9f1ecbSEdward Tomasz Napierala return; 6060b9f1ecbSEdward Tomasz Napierala 6070b9f1ecbSEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, add__force, p, resource, amount); 6080b9f1ecbSEdward Tomasz Napierala 6094c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 6100b9f1ecbSEdward Tomasz Napierala racct_add_locked(p, resource, amount, 1); 6114c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 6120b9f1ecbSEdward Tomasz Napierala } 6130b9f1ecbSEdward Tomasz Napierala 614097055e2SEdward Tomasz Napierala static void 615097055e2SEdward Tomasz Napierala racct_add_cred_locked(struct ucred *cred, int resource, uint64_t amount) 616097055e2SEdward Tomasz Napierala { 617097055e2SEdward Tomasz Napierala struct prison *pr; 618097055e2SEdward Tomasz Napierala 6194b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 6204b5c9cf6SEdward Tomasz Napierala 62136160958SMark Johnston SDT_PROBE3(racct, , rusage, add__cred, cred, resource, amount); 622097055e2SEdward Tomasz Napierala 6233768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_ruidinfo->ui_racct, resource, amount); 624097055e2SEdward Tomasz Napierala for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent) 6253768a5dfSJeremie Le Hen racct_adjust_resource(pr->pr_prison_racct->prr_racct, resource, 626a7ad07bfSEdward Tomasz Napierala amount); 6273768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_loginclass->lc_racct, resource, amount); 628097055e2SEdward Tomasz Napierala } 629097055e2SEdward Tomasz Napierala 630097055e2SEdward Tomasz Napierala /* 631097055e2SEdward Tomasz Napierala * Increase allocation of 'resource' by 'amount' for credential 'cred'. 632097055e2SEdward Tomasz Napierala * Doesn't check for limits and never fails. 633097055e2SEdward Tomasz Napierala */ 634097055e2SEdward Tomasz Napierala void 635097055e2SEdward Tomasz Napierala racct_add_cred(struct ucred *cred, int resource, uint64_t amount) 636097055e2SEdward Tomasz Napierala { 637097055e2SEdward Tomasz Napierala 6384b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 6394b5c9cf6SEdward Tomasz Napierala return; 6404b5c9cf6SEdward Tomasz Napierala 6414c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 642097055e2SEdward Tomasz Napierala racct_add_cred_locked(cred, resource, amount); 6434c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 644097055e2SEdward Tomasz Napierala } 645097055e2SEdward Tomasz Napierala 646ae34b6ffSEdward Tomasz Napierala /* 647ae34b6ffSEdward Tomasz Napierala * Account for disk IO resource consumption. Checks for limits, 648ae34b6ffSEdward Tomasz Napierala * but never fails, due to disk limits being undeniable. 649ae34b6ffSEdward Tomasz Napierala */ 650ae34b6ffSEdward Tomasz Napierala void 651ae34b6ffSEdward Tomasz Napierala racct_add_buf(struct proc *p, const struct buf *bp, int is_write) 652ae34b6ffSEdward Tomasz Napierala { 653ae34b6ffSEdward Tomasz Napierala 654ae34b6ffSEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 655ae34b6ffSEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 656ae34b6ffSEdward Tomasz Napierala 657ae34b6ffSEdward Tomasz Napierala RACCT_LOCK(); 658ae34b6ffSEdward Tomasz Napierala if (is_write) { 659ae34b6ffSEdward Tomasz Napierala racct_add_locked(curproc, RACCT_WRITEBPS, bp->b_bcount, 1); 660ae34b6ffSEdward Tomasz Napierala racct_add_locked(curproc, RACCT_WRITEIOPS, 1, 1); 661ae34b6ffSEdward Tomasz Napierala } else { 662ae34b6ffSEdward Tomasz Napierala racct_add_locked(curproc, RACCT_READBPS, bp->b_bcount, 1); 663ae34b6ffSEdward Tomasz Napierala racct_add_locked(curproc, RACCT_READIOPS, 1, 1); 664ae34b6ffSEdward Tomasz Napierala } 665ae34b6ffSEdward Tomasz Napierala RACCT_UNLOCK(); 666ae34b6ffSEdward Tomasz Napierala } 667ae34b6ffSEdward Tomasz Napierala 668097055e2SEdward Tomasz Napierala static int 66910287198SEdward Tomasz Napierala racct_set_locked(struct proc *p, int resource, uint64_t amount, int force) 670097055e2SEdward Tomasz Napierala { 671*c1a43e73SEdward Tomasz Napierala int64_t old_amount, decayed_amount, diff_proc, diff_cred; 672097055e2SEdward Tomasz Napierala #ifdef RCTL 673097055e2SEdward Tomasz Napierala int error; 674097055e2SEdward Tomasz Napierala #endif 675097055e2SEdward Tomasz Napierala 6764b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 6774b5c9cf6SEdward Tomasz Napierala 678097055e2SEdward Tomasz Napierala /* 679097055e2SEdward Tomasz Napierala * We need proc lock to dereference p->p_ucred. 680097055e2SEdward Tomasz Napierala */ 681097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 682097055e2SEdward Tomasz Napierala 68336af9869SEdward Tomasz Napierala old_amount = p->p_racct->r_resources[resource]; 68436af9869SEdward Tomasz Napierala /* 68536af9869SEdward Tomasz Napierala * The diffs may be negative. 68636af9869SEdward Tomasz Napierala */ 68736af9869SEdward Tomasz Napierala diff_proc = amount - old_amount; 688ae34b6ffSEdward Tomasz Napierala if (resource == RACCT_PCTCPU) { 68936af9869SEdward Tomasz Napierala /* 69036af9869SEdward Tomasz Napierala * Resources in per-credential racct containers may decay. 69136af9869SEdward Tomasz Napierala * If this is the case, we need to calculate the difference 69236af9869SEdward Tomasz Napierala * between the new amount and the proportional value of the 69336af9869SEdward Tomasz Napierala * old amount that has decayed in the ucred racct containers. 69436af9869SEdward Tomasz Napierala */ 69536af9869SEdward Tomasz Napierala decayed_amount = old_amount * RACCT_DECAY_FACTOR / FSCALE; 69636af9869SEdward Tomasz Napierala diff_cred = amount - decayed_amount; 69736af9869SEdward Tomasz Napierala } else 69836af9869SEdward Tomasz Napierala diff_cred = diff_proc; 699097055e2SEdward Tomasz Napierala #ifdef notyet 70036af9869SEdward Tomasz Napierala KASSERT(diff_proc >= 0 || RACCT_CAN_DROP(resource), 701baf85d0aSEdward Tomasz Napierala ("%s: usage of non-droppable resource %d dropping", __func__, 702097055e2SEdward Tomasz Napierala resource)); 703097055e2SEdward Tomasz Napierala #endif 704097055e2SEdward Tomasz Napierala #ifdef RCTL 705659e7466SEdward Tomasz Napierala if (diff_proc > 0) { 70636af9869SEdward Tomasz Napierala error = rctl_enforce(p, resource, diff_proc); 707659e7466SEdward Tomasz Napierala if (error && !force && RACCT_IS_DENIABLE(resource)) { 70836160958SMark Johnston SDT_PROBE3(racct, , rusage, set__failure, p, resource, 70936160958SMark Johnston amount); 710097055e2SEdward Tomasz Napierala return (error); 711097055e2SEdward Tomasz Napierala } 712097055e2SEdward Tomasz Napierala } 713097055e2SEdward Tomasz Napierala #endif 7143768a5dfSJeremie Le Hen racct_adjust_resource(p->p_racct, resource, diff_proc); 71536af9869SEdward Tomasz Napierala if (diff_cred > 0) 71636af9869SEdward Tomasz Napierala racct_add_cred_locked(p->p_ucred, resource, diff_cred); 71736af9869SEdward Tomasz Napierala else if (diff_cred < 0) 71836af9869SEdward Tomasz Napierala racct_sub_cred_locked(p->p_ucred, resource, -diff_cred); 719097055e2SEdward Tomasz Napierala 720097055e2SEdward Tomasz Napierala return (0); 721097055e2SEdward Tomasz Napierala } 722097055e2SEdward Tomasz Napierala 723097055e2SEdward Tomasz Napierala /* 724097055e2SEdward Tomasz Napierala * Set allocation of 'resource' to 'amount' for process 'p'. 725097055e2SEdward Tomasz Napierala * Return 0 if it's below limits, or errno, if it's not. 726097055e2SEdward Tomasz Napierala * 727097055e2SEdward Tomasz Napierala * Note that decreasing the allocation always returns 0, 728097055e2SEdward Tomasz Napierala * even if it's above the limit. 729097055e2SEdward Tomasz Napierala */ 730097055e2SEdward Tomasz Napierala int 731097055e2SEdward Tomasz Napierala racct_set(struct proc *p, int resource, uint64_t amount) 732097055e2SEdward Tomasz Napierala { 733097055e2SEdward Tomasz Napierala int error; 734097055e2SEdward Tomasz Napierala 7354b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7364b5c9cf6SEdward Tomasz Napierala return (0); 7374b5c9cf6SEdward Tomasz Napierala 73810287198SEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, set__force, p, resource, amount); 73910287198SEdward Tomasz Napierala 7404c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 74110287198SEdward Tomasz Napierala error = racct_set_locked(p, resource, amount, 0); 7424c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 743097055e2SEdward Tomasz Napierala return (error); 744097055e2SEdward Tomasz Napierala } 745097055e2SEdward Tomasz Napierala 7460b9f1ecbSEdward Tomasz Napierala void 7470b9f1ecbSEdward Tomasz Napierala racct_set_force(struct proc *p, int resource, uint64_t amount) 7480b9f1ecbSEdward Tomasz Napierala { 7490b9f1ecbSEdward Tomasz Napierala 7500b9f1ecbSEdward Tomasz Napierala if (!racct_enable) 7510b9f1ecbSEdward Tomasz Napierala return; 7520b9f1ecbSEdward Tomasz Napierala 7530b9f1ecbSEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, set, p, resource, amount); 7540b9f1ecbSEdward Tomasz Napierala 7554c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 7560b9f1ecbSEdward Tomasz Napierala racct_set_locked(p, resource, amount, 1); 7574c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 7580b9f1ecbSEdward Tomasz Napierala } 7590b9f1ecbSEdward Tomasz Napierala 760097055e2SEdward Tomasz Napierala /* 761097055e2SEdward Tomasz Napierala * Returns amount of 'resource' the process 'p' can keep allocated. 762097055e2SEdward Tomasz Napierala * Allocating more than that would be denied, unless the resource 763097055e2SEdward Tomasz Napierala * is marked undeniable. Amount of already allocated resource does 764097055e2SEdward Tomasz Napierala * not matter. 765097055e2SEdward Tomasz Napierala */ 766097055e2SEdward Tomasz Napierala uint64_t 767097055e2SEdward Tomasz Napierala racct_get_limit(struct proc *p, int resource) 768097055e2SEdward Tomasz Napierala { 769097055e2SEdward Tomasz Napierala 7704b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7714b5c9cf6SEdward Tomasz Napierala return (UINT64_MAX); 7724b5c9cf6SEdward Tomasz Napierala 773097055e2SEdward Tomasz Napierala #ifdef RCTL 774097055e2SEdward Tomasz Napierala return (rctl_get_limit(p, resource)); 775097055e2SEdward Tomasz Napierala #else 776097055e2SEdward Tomasz Napierala return (UINT64_MAX); 777097055e2SEdward Tomasz Napierala #endif 778097055e2SEdward Tomasz Napierala } 779097055e2SEdward Tomasz Napierala 780097055e2SEdward Tomasz Napierala /* 781097055e2SEdward Tomasz Napierala * Returns amount of 'resource' the process 'p' can keep allocated. 782097055e2SEdward Tomasz Napierala * Allocating more than that would be denied, unless the resource 783097055e2SEdward Tomasz Napierala * is marked undeniable. Amount of already allocated resource does 784097055e2SEdward Tomasz Napierala * matter. 785097055e2SEdward Tomasz Napierala */ 786097055e2SEdward Tomasz Napierala uint64_t 787097055e2SEdward Tomasz Napierala racct_get_available(struct proc *p, int resource) 788097055e2SEdward Tomasz Napierala { 789097055e2SEdward Tomasz Napierala 7904b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7914b5c9cf6SEdward Tomasz Napierala return (UINT64_MAX); 7924b5c9cf6SEdward Tomasz Napierala 793097055e2SEdward Tomasz Napierala #ifdef RCTL 794097055e2SEdward Tomasz Napierala return (rctl_get_available(p, resource)); 795097055e2SEdward Tomasz Napierala #else 796097055e2SEdward Tomasz Napierala return (UINT64_MAX); 797097055e2SEdward Tomasz Napierala #endif 798097055e2SEdward Tomasz Napierala } 799097055e2SEdward Tomasz Napierala 800097055e2SEdward Tomasz Napierala /* 80136af9869SEdward Tomasz Napierala * Returns amount of the %cpu resource that process 'p' can add to its %cpu 80236af9869SEdward Tomasz Napierala * utilization. Adding more than that would lead to the process being 80336af9869SEdward Tomasz Napierala * throttled. 80436af9869SEdward Tomasz Napierala */ 80536af9869SEdward Tomasz Napierala static int64_t 80636af9869SEdward Tomasz Napierala racct_pcpu_available(struct proc *p) 80736af9869SEdward Tomasz Napierala { 80836af9869SEdward Tomasz Napierala 8094b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 8104b5c9cf6SEdward Tomasz Napierala 81136af9869SEdward Tomasz Napierala #ifdef RCTL 81236af9869SEdward Tomasz Napierala return (rctl_pcpu_available(p)); 81336af9869SEdward Tomasz Napierala #else 81436af9869SEdward Tomasz Napierala return (INT64_MAX); 81536af9869SEdward Tomasz Napierala #endif 81636af9869SEdward Tomasz Napierala } 81736af9869SEdward Tomasz Napierala 81836af9869SEdward Tomasz Napierala /* 819097055e2SEdward Tomasz Napierala * Decrease allocation of 'resource' by 'amount' for process 'p'. 820097055e2SEdward Tomasz Napierala */ 821097055e2SEdward Tomasz Napierala void 822097055e2SEdward Tomasz Napierala racct_sub(struct proc *p, int resource, uint64_t amount) 823097055e2SEdward Tomasz Napierala { 824097055e2SEdward Tomasz Napierala 8254b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 8264b5c9cf6SEdward Tomasz Napierala return; 8274b5c9cf6SEdward Tomasz Napierala 82836160958SMark Johnston SDT_PROBE3(racct, , rusage, sub, p, resource, amount); 829097055e2SEdward Tomasz Napierala 830097055e2SEdward Tomasz Napierala /* 831097055e2SEdward Tomasz Napierala * We need proc lock to dereference p->p_ucred. 832097055e2SEdward Tomasz Napierala */ 833097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 83436af9869SEdward Tomasz Napierala KASSERT(RACCT_CAN_DROP(resource), 835baf85d0aSEdward Tomasz Napierala ("%s: called for non-droppable resource %d", __func__, resource)); 836097055e2SEdward Tomasz Napierala 8374c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 838097055e2SEdward Tomasz Napierala KASSERT(amount <= p->p_racct->r_resources[resource], 839baf85d0aSEdward Tomasz Napierala ("%s: freeing %ju of resource %d, which is more " 840baf85d0aSEdward Tomasz Napierala "than allocated %jd for %s (pid %d)", __func__, amount, resource, 841097055e2SEdward Tomasz Napierala (intmax_t)p->p_racct->r_resources[resource], p->p_comm, p->p_pid)); 842097055e2SEdward Tomasz Napierala 8433768a5dfSJeremie Le Hen racct_adjust_resource(p->p_racct, resource, -amount); 844097055e2SEdward Tomasz Napierala racct_sub_cred_locked(p->p_ucred, resource, amount); 8454c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 846097055e2SEdward Tomasz Napierala } 847097055e2SEdward Tomasz Napierala 848097055e2SEdward Tomasz Napierala static void 849097055e2SEdward Tomasz Napierala racct_sub_cred_locked(struct ucred *cred, int resource, uint64_t amount) 850097055e2SEdward Tomasz Napierala { 851097055e2SEdward Tomasz Napierala struct prison *pr; 852097055e2SEdward Tomasz Napierala 8534b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 8544b5c9cf6SEdward Tomasz Napierala 85536160958SMark Johnston SDT_PROBE3(racct, , rusage, sub__cred, cred, resource, amount); 856097055e2SEdward Tomasz Napierala 857097055e2SEdward Tomasz Napierala #ifdef notyet 85836af9869SEdward Tomasz Napierala KASSERT(RACCT_CAN_DROP(resource), 859baf85d0aSEdward Tomasz Napierala ("%s: called for resource %d which can not drop", __func__, 860097055e2SEdward Tomasz Napierala resource)); 861097055e2SEdward Tomasz Napierala #endif 862097055e2SEdward Tomasz Napierala 8633768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_ruidinfo->ui_racct, resource, -amount); 864097055e2SEdward Tomasz Napierala for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent) 8653768a5dfSJeremie Le Hen racct_adjust_resource(pr->pr_prison_racct->prr_racct, resource, 866a7ad07bfSEdward Tomasz Napierala -amount); 8673768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_loginclass->lc_racct, resource, -amount); 868097055e2SEdward Tomasz Napierala } 869097055e2SEdward Tomasz Napierala 870097055e2SEdward Tomasz Napierala /* 871097055e2SEdward Tomasz Napierala * Decrease allocation of 'resource' by 'amount' for credential 'cred'. 872097055e2SEdward Tomasz Napierala */ 873097055e2SEdward Tomasz Napierala void 874097055e2SEdward Tomasz Napierala racct_sub_cred(struct ucred *cred, int resource, uint64_t amount) 875097055e2SEdward Tomasz Napierala { 876097055e2SEdward Tomasz Napierala 8774b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 8784b5c9cf6SEdward Tomasz Napierala return; 8794b5c9cf6SEdward Tomasz Napierala 8804c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 881097055e2SEdward Tomasz Napierala racct_sub_cred_locked(cred, resource, amount); 8824c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 883097055e2SEdward Tomasz Napierala } 884097055e2SEdward Tomasz Napierala 885097055e2SEdward Tomasz Napierala /* 886097055e2SEdward Tomasz Napierala * Inherit resource usage information from the parent process. 887097055e2SEdward Tomasz Napierala */ 888097055e2SEdward Tomasz Napierala int 889097055e2SEdward Tomasz Napierala racct_proc_fork(struct proc *parent, struct proc *child) 890097055e2SEdward Tomasz Napierala { 891097055e2SEdward Tomasz Napierala int i, error = 0; 892097055e2SEdward Tomasz Napierala 8934b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 8944b5c9cf6SEdward Tomasz Napierala return (0); 8954b5c9cf6SEdward Tomasz Napierala 896097055e2SEdward Tomasz Napierala /* 897097055e2SEdward Tomasz Napierala * Create racct for the child process. 898097055e2SEdward Tomasz Napierala */ 899097055e2SEdward Tomasz Napierala racct_create(&child->p_racct); 900097055e2SEdward Tomasz Napierala 901097055e2SEdward Tomasz Napierala PROC_LOCK(parent); 902097055e2SEdward Tomasz Napierala PROC_LOCK(child); 9034c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 904097055e2SEdward Tomasz Napierala 905c0c09362SEdward Tomasz Napierala #ifdef RCTL 906c0c09362SEdward Tomasz Napierala error = rctl_proc_fork(parent, child); 907c0c09362SEdward Tomasz Napierala if (error != 0) 908c0c09362SEdward Tomasz Napierala goto out; 909c0c09362SEdward Tomasz Napierala #endif 910c0c09362SEdward Tomasz Napierala 91136af9869SEdward Tomasz Napierala /* Init process cpu time. */ 91236af9869SEdward Tomasz Napierala child->p_prev_runtime = 0; 91336af9869SEdward Tomasz Napierala child->p_throttled = 0; 91436af9869SEdward Tomasz Napierala 915097055e2SEdward Tomasz Napierala /* 916097055e2SEdward Tomasz Napierala * Inherit resource usage. 917097055e2SEdward Tomasz Napierala */ 918097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 919097055e2SEdward Tomasz Napierala if (parent->p_racct->r_resources[i] == 0 || 9204fe84775SEdward Tomasz Napierala !RACCT_IS_INHERITABLE(i)) 921097055e2SEdward Tomasz Napierala continue; 922097055e2SEdward Tomasz Napierala 923097055e2SEdward Tomasz Napierala error = racct_set_locked(child, i, 92410287198SEdward Tomasz Napierala parent->p_racct->r_resources[i], 0); 925ac6fafe6SEdward Tomasz Napierala if (error != 0) 926097055e2SEdward Tomasz Napierala goto out; 927097055e2SEdward Tomasz Napierala } 928097055e2SEdward Tomasz Napierala 9297cea96f6SEdward Tomasz Napierala error = racct_add_locked(child, RACCT_NPROC, 1, 0); 9307cea96f6SEdward Tomasz Napierala error += racct_add_locked(child, RACCT_NTHR, 1, 0); 9312d8696d1SEdward Tomasz Napierala 932097055e2SEdward Tomasz Napierala out: 9334c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 934097055e2SEdward Tomasz Napierala PROC_UNLOCK(child); 935097055e2SEdward Tomasz Napierala PROC_UNLOCK(parent); 936097055e2SEdward Tomasz Napierala 937ab27d5d8SEdward Tomasz Napierala if (error != 0) 938ab27d5d8SEdward Tomasz Napierala racct_proc_exit(child); 939ab27d5d8SEdward Tomasz Napierala 940097055e2SEdward Tomasz Napierala return (error); 941097055e2SEdward Tomasz Napierala } 942097055e2SEdward Tomasz Napierala 94372a401d9SEdward Tomasz Napierala /* 94472a401d9SEdward Tomasz Napierala * Called at the end of fork1(), to handle rules that require the process 94572a401d9SEdward Tomasz Napierala * to be fully initialized. 94672a401d9SEdward Tomasz Napierala */ 94772a401d9SEdward Tomasz Napierala void 94872a401d9SEdward Tomasz Napierala racct_proc_fork_done(struct proc *child) 94972a401d9SEdward Tomasz Napierala { 95072a401d9SEdward Tomasz Napierala 951813361c1SMateusz Guzik PROC_LOCK_ASSERT(child, MA_OWNED); 95272a401d9SEdward Tomasz Napierala #ifdef RCTL 9534b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 9544b5c9cf6SEdward Tomasz Napierala return; 9554b5c9cf6SEdward Tomasz Napierala 9564c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 95772a401d9SEdward Tomasz Napierala rctl_enforce(child, RACCT_NPROC, 0); 95872a401d9SEdward Tomasz Napierala rctl_enforce(child, RACCT_NTHR, 0); 9594c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 96072a401d9SEdward Tomasz Napierala #endif 96172a401d9SEdward Tomasz Napierala } 96272a401d9SEdward Tomasz Napierala 963097055e2SEdward Tomasz Napierala void 964097055e2SEdward Tomasz Napierala racct_proc_exit(struct proc *p) 965097055e2SEdward Tomasz Napierala { 96636af9869SEdward Tomasz Napierala struct timeval wallclock; 967*c1a43e73SEdward Tomasz Napierala uint64_t pct_estimate, pct, runtime; 968*c1a43e73SEdward Tomasz Napierala int i; 969097055e2SEdward Tomasz Napierala 9704b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 9714b5c9cf6SEdward Tomasz Napierala return; 9724b5c9cf6SEdward Tomasz Napierala 973097055e2SEdward Tomasz Napierala PROC_LOCK(p); 974097055e2SEdward Tomasz Napierala /* 975097055e2SEdward Tomasz Napierala * We don't need to calculate rux, proc_reap() has already done this. 976097055e2SEdward Tomasz Napierala */ 977097055e2SEdward Tomasz Napierala runtime = cputick2usec(p->p_rux.rux_runtime); 978097055e2SEdward Tomasz Napierala #ifdef notyet 979097055e2SEdward Tomasz Napierala KASSERT(runtime >= p->p_prev_runtime, ("runtime < p_prev_runtime")); 980097055e2SEdward Tomasz Napierala #else 981097055e2SEdward Tomasz Napierala if (runtime < p->p_prev_runtime) 982097055e2SEdward Tomasz Napierala runtime = p->p_prev_runtime; 983097055e2SEdward Tomasz Napierala #endif 98436af9869SEdward Tomasz Napierala microuptime(&wallclock); 98536af9869SEdward Tomasz Napierala timevalsub(&wallclock, &p->p_stats->p_start); 98684590fd8SEdward Tomasz Napierala if (wallclock.tv_sec > 0 || wallclock.tv_usec > 0) { 98736af9869SEdward Tomasz Napierala pct_estimate = (1000000 * runtime * 100) / 98836af9869SEdward Tomasz Napierala ((uint64_t)wallclock.tv_sec * 1000000 + 98936af9869SEdward Tomasz Napierala wallclock.tv_usec); 99084590fd8SEdward Tomasz Napierala } else 99184590fd8SEdward Tomasz Napierala pct_estimate = 0; 99236af9869SEdward Tomasz Napierala pct = racct_getpcpu(p, pct_estimate); 99336af9869SEdward Tomasz Napierala 9944c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 99510287198SEdward Tomasz Napierala racct_set_locked(p, RACCT_CPU, runtime, 0); 99636af9869SEdward Tomasz Napierala racct_add_cred_locked(p->p_ucred, RACCT_PCTCPU, pct); 997097055e2SEdward Tomasz Napierala 9982419d7f9SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 9992419d7f9SEdward Tomasz Napierala if (p->p_racct->r_resources[i] == 0) 10002419d7f9SEdward Tomasz Napierala continue; 10012419d7f9SEdward Tomasz Napierala if (!RACCT_IS_RECLAIMABLE(i)) 10022419d7f9SEdward Tomasz Napierala continue; 100310287198SEdward Tomasz Napierala racct_set_locked(p, i, 0, 0); 10042419d7f9SEdward Tomasz Napierala } 10052419d7f9SEdward Tomasz Napierala 10064c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 1007097055e2SEdward Tomasz Napierala PROC_UNLOCK(p); 1008097055e2SEdward Tomasz Napierala 1009097055e2SEdward Tomasz Napierala #ifdef RCTL 1010097055e2SEdward Tomasz Napierala rctl_racct_release(p->p_racct); 1011097055e2SEdward Tomasz Napierala #endif 1012097055e2SEdward Tomasz Napierala racct_destroy(&p->p_racct); 1013097055e2SEdward Tomasz Napierala } 1014097055e2SEdward Tomasz Napierala 1015097055e2SEdward Tomasz Napierala /* 1016097055e2SEdward Tomasz Napierala * Called after credentials change, to move resource utilisation 1017097055e2SEdward Tomasz Napierala * between raccts. 1018097055e2SEdward Tomasz Napierala */ 1019097055e2SEdward Tomasz Napierala void 1020097055e2SEdward Tomasz Napierala racct_proc_ucred_changed(struct proc *p, struct ucred *oldcred, 1021097055e2SEdward Tomasz Napierala struct ucred *newcred) 1022097055e2SEdward Tomasz Napierala { 1023097055e2SEdward Tomasz Napierala struct uidinfo *olduip, *newuip; 1024097055e2SEdward Tomasz Napierala struct loginclass *oldlc, *newlc; 1025097055e2SEdward Tomasz Napierala struct prison *oldpr, *newpr, *pr; 1026097055e2SEdward Tomasz Napierala 10274b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 10284b5c9cf6SEdward Tomasz Napierala return; 10294b5c9cf6SEdward Tomasz Napierala 1030097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_NOTOWNED); 1031097055e2SEdward Tomasz Napierala 1032097055e2SEdward Tomasz Napierala newuip = newcred->cr_ruidinfo; 1033097055e2SEdward Tomasz Napierala olduip = oldcred->cr_ruidinfo; 1034097055e2SEdward Tomasz Napierala newlc = newcred->cr_loginclass; 1035097055e2SEdward Tomasz Napierala oldlc = oldcred->cr_loginclass; 1036097055e2SEdward Tomasz Napierala newpr = newcred->cr_prison; 1037097055e2SEdward Tomasz Napierala oldpr = oldcred->cr_prison; 1038097055e2SEdward Tomasz Napierala 10394c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 1040097055e2SEdward Tomasz Napierala if (newuip != olduip) { 1041097055e2SEdward Tomasz Napierala racct_sub_racct(olduip->ui_racct, p->p_racct); 1042097055e2SEdward Tomasz Napierala racct_add_racct(newuip->ui_racct, p->p_racct); 1043097055e2SEdward Tomasz Napierala } 1044097055e2SEdward Tomasz Napierala if (newlc != oldlc) { 1045097055e2SEdward Tomasz Napierala racct_sub_racct(oldlc->lc_racct, p->p_racct); 1046097055e2SEdward Tomasz Napierala racct_add_racct(newlc->lc_racct, p->p_racct); 1047097055e2SEdward Tomasz Napierala } 1048097055e2SEdward Tomasz Napierala if (newpr != oldpr) { 1049097055e2SEdward Tomasz Napierala for (pr = oldpr; pr != NULL; pr = pr->pr_parent) 1050a7ad07bfSEdward Tomasz Napierala racct_sub_racct(pr->pr_prison_racct->prr_racct, 1051a7ad07bfSEdward Tomasz Napierala p->p_racct); 1052097055e2SEdward Tomasz Napierala for (pr = newpr; pr != NULL; pr = pr->pr_parent) 1053a7ad07bfSEdward Tomasz Napierala racct_add_racct(pr->pr_prison_racct->prr_racct, 1054a7ad07bfSEdward Tomasz Napierala p->p_racct); 1055097055e2SEdward Tomasz Napierala } 10564c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 1057097055e2SEdward Tomasz Napierala 1058097055e2SEdward Tomasz Napierala #ifdef RCTL 1059097055e2SEdward Tomasz Napierala rctl_proc_ucred_changed(p, newcred); 1060097055e2SEdward Tomasz Napierala #endif 1061097055e2SEdward Tomasz Napierala } 1062097055e2SEdward Tomasz Napierala 1063c34bbd2aSEdward Tomasz Napierala void 1064c34bbd2aSEdward Tomasz Napierala racct_move(struct racct *dest, struct racct *src) 1065c34bbd2aSEdward Tomasz Napierala { 1066c34bbd2aSEdward Tomasz Napierala 10674b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 10684b5c9cf6SEdward Tomasz Napierala 10694c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 1070c34bbd2aSEdward Tomasz Napierala racct_add_racct(dest, src); 1071c34bbd2aSEdward Tomasz Napierala racct_sub_racct(src, src); 10724c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 1073c34bbd2aSEdward Tomasz Napierala } 1074c34bbd2aSEdward Tomasz Napierala 1075ae34b6ffSEdward Tomasz Napierala /* 1076ae34b6ffSEdward Tomasz Napierala * Make the process sleep in userret() for 'timeout' ticks. Setting 1077ae34b6ffSEdward Tomasz Napierala * timeout to -1 makes it sleep until woken up by racct_proc_wakeup(). 1078ae34b6ffSEdward Tomasz Napierala */ 1079ae34b6ffSEdward Tomasz Napierala void 1080ae34b6ffSEdward Tomasz Napierala racct_proc_throttle(struct proc *p, int timeout) 108136af9869SEdward Tomasz Napierala { 108236af9869SEdward Tomasz Napierala struct thread *td; 108336af9869SEdward Tomasz Napierala #ifdef SMP 108436af9869SEdward Tomasz Napierala int cpuid; 108536af9869SEdward Tomasz Napierala #endif 108636af9869SEdward Tomasz Napierala 1087ae34b6ffSEdward Tomasz Napierala KASSERT(timeout != 0, ("timeout %d", timeout)); 10884b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 108936af9869SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 109036af9869SEdward Tomasz Napierala 109136af9869SEdward Tomasz Napierala /* 109236af9869SEdward Tomasz Napierala * Do not block kernel processes. Also do not block processes with 109336af9869SEdward Tomasz Napierala * low %cpu utilization to improve interactivity. 109436af9869SEdward Tomasz Napierala */ 1095ae34b6ffSEdward Tomasz Napierala if ((p->p_flag & (P_SYSTEM | P_KPROC)) != 0) 109636af9869SEdward Tomasz Napierala return; 1097ae34b6ffSEdward Tomasz Napierala 1098ae34b6ffSEdward Tomasz Napierala if (p->p_throttled < 0 || (timeout > 0 && p->p_throttled > timeout)) 1099ae34b6ffSEdward Tomasz Napierala return; 1100ae34b6ffSEdward Tomasz Napierala 1101ae34b6ffSEdward Tomasz Napierala p->p_throttled = timeout; 110236af9869SEdward Tomasz Napierala 110336af9869SEdward Tomasz Napierala FOREACH_THREAD_IN_PROC(p, td) { 110416befafdSEdward Tomasz Napierala thread_lock(td); 110536af9869SEdward Tomasz Napierala switch (td->td_state) { 110636af9869SEdward Tomasz Napierala case TDS_RUNQ: 110736af9869SEdward Tomasz Napierala /* 110836af9869SEdward Tomasz Napierala * If the thread is on the scheduler run-queue, we can 110936af9869SEdward Tomasz Napierala * not just remove it from there. So we set the flag 111036af9869SEdward Tomasz Napierala * TDF_NEEDRESCHED for the thread, so that once it is 111136af9869SEdward Tomasz Napierala * running, it is taken off the cpu as soon as possible. 111236af9869SEdward Tomasz Napierala */ 111336af9869SEdward Tomasz Napierala td->td_flags |= TDF_NEEDRESCHED; 111436af9869SEdward Tomasz Napierala break; 111536af9869SEdward Tomasz Napierala case TDS_RUNNING: 111636af9869SEdward Tomasz Napierala /* 111736af9869SEdward Tomasz Napierala * If the thread is running, we request a context 111836af9869SEdward Tomasz Napierala * switch for it by setting the TDF_NEEDRESCHED flag. 111936af9869SEdward Tomasz Napierala */ 112036af9869SEdward Tomasz Napierala td->td_flags |= TDF_NEEDRESCHED; 112136af9869SEdward Tomasz Napierala #ifdef SMP 112236af9869SEdward Tomasz Napierala cpuid = td->td_oncpu; 112336af9869SEdward Tomasz Napierala if ((cpuid != NOCPU) && (td != curthread)) 112436af9869SEdward Tomasz Napierala ipi_cpu(cpuid, IPI_AST); 112536af9869SEdward Tomasz Napierala #endif 112636af9869SEdward Tomasz Napierala break; 112736af9869SEdward Tomasz Napierala default: 112836af9869SEdward Tomasz Napierala break; 112936af9869SEdward Tomasz Napierala } 113016befafdSEdward Tomasz Napierala thread_unlock(td); 113136af9869SEdward Tomasz Napierala } 113236af9869SEdward Tomasz Napierala } 113336af9869SEdward Tomasz Napierala 113436af9869SEdward Tomasz Napierala static void 113536af9869SEdward Tomasz Napierala racct_proc_wakeup(struct proc *p) 113636af9869SEdward Tomasz Napierala { 11374b5c9cf6SEdward Tomasz Napierala 11384b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 11394b5c9cf6SEdward Tomasz Napierala 114036af9869SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 114136af9869SEdward Tomasz Napierala 1142ae34b6ffSEdward Tomasz Napierala if (p->p_throttled != 0) { 114336af9869SEdward Tomasz Napierala p->p_throttled = 0; 114436af9869SEdward Tomasz Napierala wakeup(p->p_racct); 114536af9869SEdward Tomasz Napierala } 114636af9869SEdward Tomasz Napierala } 114736af9869SEdward Tomasz Napierala 114836af9869SEdward Tomasz Napierala static void 1149862d03fbSEdward Tomasz Napierala racct_decay_callback(struct racct *racct, void *dummy1, void *dummy2) 115036af9869SEdward Tomasz Napierala { 115136af9869SEdward Tomasz Napierala int64_t r_old, r_new; 115236af9869SEdward Tomasz Napierala 11534b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 11544c230cdaSEdward Tomasz Napierala RACCT_LOCK_ASSERT(); 11554b5c9cf6SEdward Tomasz Napierala 1156ae34b6ffSEdward Tomasz Napierala #ifdef RCTL 1157ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(racct, RACCT_READBPS); 1158ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(racct, RACCT_WRITEBPS); 1159ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(racct, RACCT_READIOPS); 1160ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(racct, RACCT_WRITEIOPS); 1161ae34b6ffSEdward Tomasz Napierala #endif 1162ae34b6ffSEdward Tomasz Napierala 1163862d03fbSEdward Tomasz Napierala r_old = racct->r_resources[RACCT_PCTCPU]; 116436af9869SEdward Tomasz Napierala 116536af9869SEdward Tomasz Napierala /* If there is nothing to decay, just exit. */ 116636af9869SEdward Tomasz Napierala if (r_old <= 0) 116736af9869SEdward Tomasz Napierala return; 116836af9869SEdward Tomasz Napierala 116936af9869SEdward Tomasz Napierala r_new = r_old * RACCT_DECAY_FACTOR / FSCALE; 1170862d03fbSEdward Tomasz Napierala racct->r_resources[RACCT_PCTCPU] = r_new; 117115db3c07SEdward Tomasz Napierala } 117215db3c07SEdward Tomasz Napierala 117315db3c07SEdward Tomasz Napierala static void 117415db3c07SEdward Tomasz Napierala racct_decay_pre(void) 117515db3c07SEdward Tomasz Napierala { 117615db3c07SEdward Tomasz Napierala 11774c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 117815db3c07SEdward Tomasz Napierala } 117915db3c07SEdward Tomasz Napierala 118015db3c07SEdward Tomasz Napierala static void 118115db3c07SEdward Tomasz Napierala racct_decay_post(void) 118215db3c07SEdward Tomasz Napierala { 118315db3c07SEdward Tomasz Napierala 11844c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 118536af9869SEdward Tomasz Napierala } 118636af9869SEdward Tomasz Napierala 118736af9869SEdward Tomasz Napierala static void 1188097e0da7SEdward Tomasz Napierala racct_decay(void) 118936af9869SEdward Tomasz Napierala { 11904b5c9cf6SEdward Tomasz Napierala 11914b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 11924b5c9cf6SEdward Tomasz Napierala 1193862d03fbSEdward Tomasz Napierala ui_racct_foreach(racct_decay_callback, racct_decay_pre, 1194862d03fbSEdward Tomasz Napierala racct_decay_post, NULL, NULL); 1195862d03fbSEdward Tomasz Napierala loginclass_racct_foreach(racct_decay_callback, racct_decay_pre, 1196862d03fbSEdward Tomasz Napierala racct_decay_post, NULL, NULL); 1197862d03fbSEdward Tomasz Napierala prison_racct_foreach(racct_decay_callback, racct_decay_pre, 1198862d03fbSEdward Tomasz Napierala racct_decay_post, NULL, NULL); 119936af9869SEdward Tomasz Napierala } 120036af9869SEdward Tomasz Napierala 120136af9869SEdward Tomasz Napierala static void 1202097055e2SEdward Tomasz Napierala racctd(void) 1203097055e2SEdward Tomasz Napierala { 1204097055e2SEdward Tomasz Napierala struct thread *td; 1205097055e2SEdward Tomasz Napierala struct proc *p; 1206097055e2SEdward Tomasz Napierala struct timeval wallclock; 1207*c1a43e73SEdward Tomasz Napierala uint64_t pct, pct_estimate, runtime; 1208097055e2SEdward Tomasz Napierala 12094b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 12104b5c9cf6SEdward Tomasz Napierala 1211097055e2SEdward Tomasz Napierala for (;;) { 1212862d03fbSEdward Tomasz Napierala racct_decay(); 121336af9869SEdward Tomasz Napierala 1214097055e2SEdward Tomasz Napierala sx_slock(&allproc_lock); 1215097055e2SEdward Tomasz Napierala 121636af9869SEdward Tomasz Napierala LIST_FOREACH(p, &zombproc, p_list) { 121736af9869SEdward Tomasz Napierala PROC_LOCK(p); 121836af9869SEdward Tomasz Napierala racct_set(p, RACCT_PCTCPU, 0); 121936af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 122036af9869SEdward Tomasz Napierala } 122136af9869SEdward Tomasz Napierala 1222097055e2SEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 122336af9869SEdward Tomasz Napierala PROC_LOCK(p); 122436af9869SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) { 122536af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 1226097055e2SEdward Tomasz Napierala continue; 122736af9869SEdward Tomasz Napierala } 1228097055e2SEdward Tomasz Napierala 1229097055e2SEdward Tomasz Napierala microuptime(&wallclock); 1230097055e2SEdward Tomasz Napierala timevalsub(&wallclock, &p->p_stats->p_start); 12315c7bebf9SKonstantin Belousov PROC_STATLOCK(p); 12320a53cd57SEdward Tomasz Napierala FOREACH_THREAD_IN_PROC(p, td) 1233097055e2SEdward Tomasz Napierala ruxagg(p, td); 1234097055e2SEdward Tomasz Napierala runtime = cputick2usec(p->p_rux.rux_runtime); 12355c7bebf9SKonstantin Belousov PROC_STATUNLOCK(p); 1236097055e2SEdward Tomasz Napierala #ifdef notyet 1237097055e2SEdward Tomasz Napierala KASSERT(runtime >= p->p_prev_runtime, 1238097055e2SEdward Tomasz Napierala ("runtime < p_prev_runtime")); 1239097055e2SEdward Tomasz Napierala #else 1240097055e2SEdward Tomasz Napierala if (runtime < p->p_prev_runtime) 1241097055e2SEdward Tomasz Napierala runtime = p->p_prev_runtime; 1242097055e2SEdward Tomasz Napierala #endif 1243097055e2SEdward Tomasz Napierala p->p_prev_runtime = runtime; 124484590fd8SEdward Tomasz Napierala if (wallclock.tv_sec > 0 || wallclock.tv_usec > 0) { 124536af9869SEdward Tomasz Napierala pct_estimate = (1000000 * runtime * 100) / 124636af9869SEdward Tomasz Napierala ((uint64_t)wallclock.tv_sec * 1000000 + 124736af9869SEdward Tomasz Napierala wallclock.tv_usec); 124884590fd8SEdward Tomasz Napierala } else 124984590fd8SEdward Tomasz Napierala pct_estimate = 0; 125036af9869SEdward Tomasz Napierala pct = racct_getpcpu(p, pct_estimate); 12514c230cdaSEdward Tomasz Napierala RACCT_LOCK(); 1252ae34b6ffSEdward Tomasz Napierala #ifdef RCTL 1253ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(p->p_racct, RACCT_READBPS); 1254ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(p->p_racct, RACCT_WRITEBPS); 1255ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(p->p_racct, RACCT_READIOPS); 1256ae34b6ffSEdward Tomasz Napierala rctl_throttle_decay(p->p_racct, RACCT_WRITEIOPS); 1257ae34b6ffSEdward Tomasz Napierala #endif 125810287198SEdward Tomasz Napierala racct_set_locked(p, RACCT_PCTCPU, pct, 1); 125910287198SEdward Tomasz Napierala racct_set_locked(p, RACCT_CPU, runtime, 0); 1260097055e2SEdward Tomasz Napierala racct_set_locked(p, RACCT_WALLCLOCK, 126159f513cdSJaakko Heinonen (uint64_t)wallclock.tv_sec * 1000000 + 126210287198SEdward Tomasz Napierala wallclock.tv_usec, 0); 12634c230cdaSEdward Tomasz Napierala RACCT_UNLOCK(); 1264097055e2SEdward Tomasz Napierala PROC_UNLOCK(p); 1265097055e2SEdward Tomasz Napierala } 126636af9869SEdward Tomasz Napierala 126736af9869SEdward Tomasz Napierala /* 126836af9869SEdward Tomasz Napierala * To ensure that processes are throttled in a fair way, we need 126936af9869SEdward Tomasz Napierala * to iterate over all processes again and check the limits 127036af9869SEdward Tomasz Napierala * for %cpu resource only after ucred racct containers have been 127136af9869SEdward Tomasz Napierala * properly filled. 127236af9869SEdward Tomasz Napierala */ 127336af9869SEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 127436af9869SEdward Tomasz Napierala PROC_LOCK(p); 127536af9869SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) { 127636af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 127736af9869SEdward Tomasz Napierala continue; 127836af9869SEdward Tomasz Napierala } 127936af9869SEdward Tomasz Napierala 1280ae34b6ffSEdward Tomasz Napierala if (racct_pcpu_available(p) <= 0) { 1281ae34b6ffSEdward Tomasz Napierala if (p->p_racct->r_resources[RACCT_PCTCPU] > 1282ae34b6ffSEdward Tomasz Napierala pcpu_threshold) 1283ae34b6ffSEdward Tomasz Napierala racct_proc_throttle(p, -1); 1284ae34b6ffSEdward Tomasz Napierala } else if (p->p_throttled == -1) { 128536af9869SEdward Tomasz Napierala racct_proc_wakeup(p); 1286ae34b6ffSEdward Tomasz Napierala } 128736af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 128836af9869SEdward Tomasz Napierala } 1289097055e2SEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1290097055e2SEdward Tomasz Napierala pause("-", hz); 1291097055e2SEdward Tomasz Napierala } 1292097055e2SEdward Tomasz Napierala } 1293097055e2SEdward Tomasz Napierala 1294097055e2SEdward Tomasz Napierala static struct kproc_desc racctd_kp = { 1295097055e2SEdward Tomasz Napierala "racctd", 1296097055e2SEdward Tomasz Napierala racctd, 1297097055e2SEdward Tomasz Napierala NULL 1298097055e2SEdward Tomasz Napierala }; 12994b5c9cf6SEdward Tomasz Napierala 13004b5c9cf6SEdward Tomasz Napierala static void 13014b5c9cf6SEdward Tomasz Napierala racctd_init(void) 13024b5c9cf6SEdward Tomasz Napierala { 13034b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 13044b5c9cf6SEdward Tomasz Napierala return; 13054b5c9cf6SEdward Tomasz Napierala 13064b5c9cf6SEdward Tomasz Napierala kproc_start(&racctd_kp); 13074b5c9cf6SEdward Tomasz Napierala } 13084b5c9cf6SEdward Tomasz Napierala SYSINIT(racctd, SI_SUB_RACCTD, SI_ORDER_FIRST, racctd_init, NULL); 1309097055e2SEdward Tomasz Napierala 1310097055e2SEdward Tomasz Napierala static void 1311097055e2SEdward Tomasz Napierala racct_init(void) 1312097055e2SEdward Tomasz Napierala { 13134b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 13144b5c9cf6SEdward Tomasz Napierala return; 1315097055e2SEdward Tomasz Napierala 1316097055e2SEdward Tomasz Napierala racct_zone = uma_zcreate("racct", sizeof(struct racct), 1317097055e2SEdward Tomasz Napierala NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 1318097055e2SEdward Tomasz Napierala /* 1319097055e2SEdward Tomasz Napierala * XXX: Move this somewhere. 1320097055e2SEdward Tomasz Napierala */ 1321a7ad07bfSEdward Tomasz Napierala prison0.pr_prison_racct = prison_racct_find("0"); 1322097055e2SEdward Tomasz Napierala } 1323097055e2SEdward Tomasz Napierala SYSINIT(racct, SI_SUB_RACCT, SI_ORDER_FIRST, racct_init, NULL); 1324097055e2SEdward Tomasz Napierala 1325097055e2SEdward Tomasz Napierala #endif /* !RACCT */ 1326