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> 380e225211SAndriy Gapon #include <sys/systm.h> 39097055e2SEdward Tomasz Napierala #include <sys/eventhandler.h> 40097055e2SEdward Tomasz Napierala #include <sys/jail.h> 41097055e2SEdward Tomasz Napierala #include <sys/kernel.h> 42097055e2SEdward Tomasz Napierala #include <sys/kthread.h> 43097055e2SEdward Tomasz Napierala #include <sys/lock.h> 44097055e2SEdward Tomasz Napierala #include <sys/loginclass.h> 45097055e2SEdward Tomasz Napierala #include <sys/malloc.h> 46097055e2SEdward Tomasz Napierala #include <sys/mutex.h> 47097055e2SEdward Tomasz Napierala #include <sys/proc.h> 48097055e2SEdward Tomasz Napierala #include <sys/racct.h> 49097055e2SEdward Tomasz Napierala #include <sys/resourcevar.h> 50097055e2SEdward Tomasz Napierala #include <sys/sbuf.h> 51097055e2SEdward Tomasz Napierala #include <sys/sched.h> 52097055e2SEdward Tomasz Napierala #include <sys/sdt.h> 5336af9869SEdward Tomasz Napierala #include <sys/smp.h> 54097055e2SEdward Tomasz Napierala #include <sys/sx.h> 5536af9869SEdward Tomasz Napierala #include <sys/sysctl.h> 56097055e2SEdward Tomasz Napierala #include <sys/sysent.h> 57097055e2SEdward Tomasz Napierala #include <sys/sysproto.h> 58097055e2SEdward Tomasz Napierala #include <sys/umtx.h> 5936af9869SEdward Tomasz Napierala #include <machine/smp.h> 60097055e2SEdward Tomasz Napierala 61097055e2SEdward Tomasz Napierala #ifdef RCTL 62097055e2SEdward Tomasz Napierala #include <sys/rctl.h> 63097055e2SEdward Tomasz Napierala #endif 64097055e2SEdward Tomasz Napierala 65097055e2SEdward Tomasz Napierala #ifdef RACCT 66097055e2SEdward Tomasz Napierala 67097055e2SEdward Tomasz Napierala FEATURE(racct, "Resource Accounting"); 68097055e2SEdward Tomasz Napierala 6936af9869SEdward Tomasz Napierala /* 7036af9869SEdward Tomasz Napierala * Do not block processes that have their %cpu usage <= pcpu_threshold. 7136af9869SEdward Tomasz Napierala */ 7236af9869SEdward Tomasz Napierala static int pcpu_threshold = 1; 73ba8f0eb8SEdward Tomasz Napierala #ifdef RACCT_DEFAULT_TO_DISABLED 744b5c9cf6SEdward Tomasz Napierala int racct_enable = 0; 754b5c9cf6SEdward Tomasz Napierala #else 764b5c9cf6SEdward Tomasz Napierala int racct_enable = 1; 774b5c9cf6SEdward Tomasz Napierala #endif 7836af9869SEdward Tomasz Napierala 7936af9869SEdward Tomasz Napierala SYSCTL_NODE(_kern, OID_AUTO, racct, CTLFLAG_RW, 0, "Resource Accounting"); 804b5c9cf6SEdward Tomasz Napierala SYSCTL_UINT(_kern_racct, OID_AUTO, enable, CTLFLAG_RDTUN, &racct_enable, 814b5c9cf6SEdward Tomasz Napierala 0, "Enable RACCT/RCTL"); 8236af9869SEdward Tomasz Napierala SYSCTL_UINT(_kern_racct, OID_AUTO, pcpu_threshold, CTLFLAG_RW, &pcpu_threshold, 8336af9869SEdward Tomasz Napierala 0, "Processes with higher %cpu usage than this value can be throttled."); 8436af9869SEdward Tomasz Napierala 8536af9869SEdward Tomasz Napierala /* 8636af9869SEdward Tomasz Napierala * How many seconds it takes to use the scheduler %cpu calculations. When a 8736af9869SEdward Tomasz Napierala * process starts, we compute its %cpu usage by dividing its runtime by the 8836af9869SEdward Tomasz Napierala * process wall clock time. After RACCT_PCPU_SECS pass, we use the value 8936af9869SEdward Tomasz Napierala * provided by the scheduler. 9036af9869SEdward Tomasz Napierala */ 9136af9869SEdward Tomasz Napierala #define RACCT_PCPU_SECS 3 9236af9869SEdward Tomasz Napierala 93097055e2SEdward Tomasz Napierala static struct mtx racct_lock; 94097055e2SEdward Tomasz Napierala MTX_SYSINIT(racct_lock, &racct_lock, "racct lock", MTX_DEF); 95097055e2SEdward Tomasz Napierala 96097055e2SEdward Tomasz Napierala static uma_zone_t racct_zone; 97097055e2SEdward Tomasz Napierala 98097055e2SEdward Tomasz Napierala static void racct_sub_racct(struct racct *dest, const struct racct *src); 99097055e2SEdward Tomasz Napierala static void racct_sub_cred_locked(struct ucred *cred, int resource, 100097055e2SEdward Tomasz Napierala uint64_t amount); 101097055e2SEdward Tomasz Napierala static void racct_add_cred_locked(struct ucred *cred, int resource, 102097055e2SEdward Tomasz Napierala uint64_t amount); 103097055e2SEdward Tomasz Napierala 104097055e2SEdward Tomasz Napierala SDT_PROVIDER_DEFINE(racct); 10536160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add, 106097055e2SEdward Tomasz Napierala "struct proc *", "int", "uint64_t"); 10736160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add__failure, 108097055e2SEdward Tomasz Napierala "struct proc *", "int", "uint64_t"); 10936160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add__cred, 11036160958SMark Johnston "struct ucred *", "int", "uint64_t"); 11136160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, add__force, 11236160958SMark Johnston "struct proc *", "int", "uint64_t"); 11336160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, set, 11436160958SMark Johnston "struct proc *", "int", "uint64_t"); 11536160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, set__failure, 11636160958SMark Johnston "struct proc *", "int", "uint64_t"); 11710287198SEdward Tomasz Napierala SDT_PROBE_DEFINE3(racct, , rusage, set__force, 11810287198SEdward Tomasz Napierala "struct proc *", "int", "uint64_t"); 11936160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, sub, 12036160958SMark Johnston "struct proc *", "int", "uint64_t"); 12136160958SMark Johnston SDT_PROBE_DEFINE3(racct, , rusage, sub__cred, 12236160958SMark Johnston "struct ucred *", "int", "uint64_t"); 12336160958SMark Johnston SDT_PROBE_DEFINE1(racct, , racct, create, 124097055e2SEdward Tomasz Napierala "struct racct *"); 12536160958SMark Johnston SDT_PROBE_DEFINE1(racct, , racct, destroy, 12636160958SMark Johnston "struct racct *"); 12736160958SMark Johnston SDT_PROBE_DEFINE2(racct, , racct, join, 128097055e2SEdward Tomasz Napierala "struct racct *", "struct racct *"); 12936160958SMark Johnston SDT_PROBE_DEFINE2(racct, , racct, join__failure, 13036160958SMark Johnston "struct racct *", "struct racct *"); 13136160958SMark Johnston SDT_PROBE_DEFINE2(racct, , racct, leave, 13236160958SMark Johnston "struct racct *", "struct racct *"); 133097055e2SEdward Tomasz Napierala 134097055e2SEdward Tomasz Napierala int racct_types[] = { 135097055e2SEdward Tomasz Napierala [RACCT_CPU] = 13685a2f1b4SEdward Tomasz Napierala RACCT_IN_MILLIONS, 137097055e2SEdward Tomasz Napierala [RACCT_DATA] = 138097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 139097055e2SEdward Tomasz Napierala [RACCT_STACK] = 140097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 141097055e2SEdward Tomasz Napierala [RACCT_CORE] = 142097055e2SEdward Tomasz Napierala RACCT_DENIABLE, 143097055e2SEdward Tomasz Napierala [RACCT_RSS] = 144097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE, 145097055e2SEdward Tomasz Napierala [RACCT_MEMLOCK] = 146097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE, 147097055e2SEdward Tomasz Napierala [RACCT_NPROC] = 148097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE, 149097055e2SEdward Tomasz Napierala [RACCT_NOFILE] = 150097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 151097055e2SEdward Tomasz Napierala [RACCT_VMEM] = 152097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 153097055e2SEdward Tomasz Napierala [RACCT_NPTS] = 154097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 155097055e2SEdward Tomasz Napierala [RACCT_SWAP] = 156097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 157097055e2SEdward Tomasz Napierala [RACCT_NTHR] = 158097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE, 159097055e2SEdward Tomasz Napierala [RACCT_MSGQQUEUED] = 160097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 161097055e2SEdward Tomasz Napierala [RACCT_MSGQSIZE] = 162097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 163097055e2SEdward Tomasz Napierala [RACCT_NMSGQ] = 164097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 165097055e2SEdward Tomasz Napierala [RACCT_NSEM] = 166097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 167097055e2SEdward Tomasz Napierala [RACCT_NSEMOP] = 168097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_INHERITABLE | RACCT_DENIABLE, 169097055e2SEdward Tomasz Napierala [RACCT_NSHM] = 170097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 171097055e2SEdward Tomasz Napierala [RACCT_SHMSIZE] = 172097055e2SEdward Tomasz Napierala RACCT_RECLAIMABLE | RACCT_DENIABLE | RACCT_SLOPPY, 173097055e2SEdward Tomasz Napierala [RACCT_WALLCLOCK] = 17436af9869SEdward Tomasz Napierala RACCT_IN_MILLIONS, 17536af9869SEdward Tomasz Napierala [RACCT_PCTCPU] = 17636af9869SEdward Tomasz Napierala RACCT_DECAYING | RACCT_DENIABLE | RACCT_IN_MILLIONS }; 17736af9869SEdward Tomasz Napierala 17836af9869SEdward Tomasz Napierala static const fixpt_t RACCT_DECAY_FACTOR = 0.3 * FSCALE; 17936af9869SEdward Tomasz Napierala 18036af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 18136af9869SEdward Tomasz Napierala /* 18236af9869SEdward Tomasz Napierala * Contains intermediate values for %cpu calculations to avoid using floating 18336af9869SEdward Tomasz Napierala * point in the kernel. 18436af9869SEdward Tomasz Napierala * ccpu_exp[k] = FSCALE * (ccpu/FSCALE)^k = FSCALE * exp(-k/20) 18536af9869SEdward Tomasz Napierala * It is needed only for the 4BSD scheduler, because in ULE, the ccpu equals to 18636af9869SEdward Tomasz Napierala * zero so the calculations are more straightforward. 18736af9869SEdward Tomasz Napierala */ 18836af9869SEdward Tomasz Napierala fixpt_t ccpu_exp[] = { 18936af9869SEdward Tomasz Napierala [0] = FSCALE * 1, 19036af9869SEdward Tomasz Napierala [1] = FSCALE * 0.95122942450071400909, 19136af9869SEdward Tomasz Napierala [2] = FSCALE * 0.90483741803595957316, 19236af9869SEdward Tomasz Napierala [3] = FSCALE * 0.86070797642505780722, 19336af9869SEdward Tomasz Napierala [4] = FSCALE * 0.81873075307798185866, 19436af9869SEdward Tomasz Napierala [5] = FSCALE * 0.77880078307140486824, 19536af9869SEdward Tomasz Napierala [6] = FSCALE * 0.74081822068171786606, 19636af9869SEdward Tomasz Napierala [7] = FSCALE * 0.70468808971871343435, 19736af9869SEdward Tomasz Napierala [8] = FSCALE * 0.67032004603563930074, 19836af9869SEdward Tomasz Napierala [9] = FSCALE * 0.63762815162177329314, 19936af9869SEdward Tomasz Napierala [10] = FSCALE * 0.60653065971263342360, 20036af9869SEdward Tomasz Napierala [11] = FSCALE * 0.57694981038048669531, 20136af9869SEdward Tomasz Napierala [12] = FSCALE * 0.54881163609402643262, 20236af9869SEdward Tomasz Napierala [13] = FSCALE * 0.52204577676101604789, 20336af9869SEdward Tomasz Napierala [14] = FSCALE * 0.49658530379140951470, 20436af9869SEdward Tomasz Napierala [15] = FSCALE * 0.47236655274101470713, 20536af9869SEdward Tomasz Napierala [16] = FSCALE * 0.44932896411722159143, 20636af9869SEdward Tomasz Napierala [17] = FSCALE * 0.42741493194872666992, 20736af9869SEdward Tomasz Napierala [18] = FSCALE * 0.40656965974059911188, 20836af9869SEdward Tomasz Napierala [19] = FSCALE * 0.38674102345450120691, 20936af9869SEdward Tomasz Napierala [20] = FSCALE * 0.36787944117144232159, 21036af9869SEdward Tomasz Napierala [21] = FSCALE * 0.34993774911115535467, 21136af9869SEdward Tomasz Napierala [22] = FSCALE * 0.33287108369807955328, 21236af9869SEdward Tomasz Napierala [23] = FSCALE * 0.31663676937905321821, 21336af9869SEdward Tomasz Napierala [24] = FSCALE * 0.30119421191220209664, 21436af9869SEdward Tomasz Napierala [25] = FSCALE * 0.28650479686019010032, 21536af9869SEdward Tomasz Napierala [26] = FSCALE * 0.27253179303401260312, 21636af9869SEdward Tomasz Napierala [27] = FSCALE * 0.25924026064589150757, 21736af9869SEdward Tomasz Napierala [28] = FSCALE * 0.24659696394160647693, 21836af9869SEdward Tomasz Napierala [29] = FSCALE * 0.23457028809379765313, 21936af9869SEdward Tomasz Napierala [30] = FSCALE * 0.22313016014842982893, 22036af9869SEdward Tomasz Napierala [31] = FSCALE * 0.21224797382674305771, 22136af9869SEdward Tomasz Napierala [32] = FSCALE * 0.20189651799465540848, 22236af9869SEdward Tomasz Napierala [33] = FSCALE * 0.19204990862075411423, 22336af9869SEdward Tomasz Napierala [34] = FSCALE * 0.18268352405273465022, 22436af9869SEdward Tomasz Napierala [35] = FSCALE * 0.17377394345044512668, 22536af9869SEdward Tomasz Napierala [36] = FSCALE * 0.16529888822158653829, 22636af9869SEdward Tomasz Napierala [37] = FSCALE * 0.15723716631362761621, 22736af9869SEdward Tomasz Napierala [38] = FSCALE * 0.14956861922263505264, 22836af9869SEdward Tomasz Napierala [39] = FSCALE * 0.14227407158651357185, 22936af9869SEdward Tomasz Napierala [40] = FSCALE * 0.13533528323661269189, 23036af9869SEdward Tomasz Napierala [41] = FSCALE * 0.12873490358780421886, 23136af9869SEdward Tomasz Napierala [42] = FSCALE * 0.12245642825298191021, 23236af9869SEdward Tomasz Napierala [43] = FSCALE * 0.11648415777349695786, 23336af9869SEdward Tomasz Napierala [44] = FSCALE * 0.11080315836233388333, 23436af9869SEdward Tomasz Napierala [45] = FSCALE * 0.10539922456186433678, 23536af9869SEdward Tomasz Napierala [46] = FSCALE * 0.10025884372280373372, 23636af9869SEdward Tomasz Napierala [47] = FSCALE * 0.09536916221554961888, 23736af9869SEdward Tomasz Napierala [48] = FSCALE * 0.09071795328941250337, 23836af9869SEdward Tomasz Napierala [49] = FSCALE * 0.08629358649937051097, 23936af9869SEdward Tomasz Napierala [50] = FSCALE * 0.08208499862389879516, 24036af9869SEdward Tomasz Napierala [51] = FSCALE * 0.07808166600115315231, 24136af9869SEdward Tomasz Napierala [52] = FSCALE * 0.07427357821433388042, 24236af9869SEdward Tomasz Napierala [53] = FSCALE * 0.07065121306042958674, 24336af9869SEdward Tomasz Napierala [54] = FSCALE * 0.06720551273974976512, 24436af9869SEdward Tomasz Napierala [55] = FSCALE * 0.06392786120670757270, 24536af9869SEdward Tomasz Napierala [56] = FSCALE * 0.06081006262521796499, 24636af9869SEdward Tomasz Napierala [57] = FSCALE * 0.05784432087483846296, 24736af9869SEdward Tomasz Napierala [58] = FSCALE * 0.05502322005640722902, 24836af9869SEdward Tomasz Napierala [59] = FSCALE * 0.05233970594843239308, 24936af9869SEdward Tomasz Napierala [60] = FSCALE * 0.04978706836786394297, 25036af9869SEdward Tomasz Napierala [61] = FSCALE * 0.04735892439114092119, 25136af9869SEdward Tomasz Napierala [62] = FSCALE * 0.04504920239355780606, 25236af9869SEdward Tomasz Napierala [63] = FSCALE * 0.04285212686704017991, 25336af9869SEdward Tomasz Napierala [64] = FSCALE * 0.04076220397836621516, 25436af9869SEdward Tomasz Napierala [65] = FSCALE * 0.03877420783172200988, 25536af9869SEdward Tomasz Napierala [66] = FSCALE * 0.03688316740124000544, 25636af9869SEdward Tomasz Napierala [67] = FSCALE * 0.03508435410084502588, 25736af9869SEdward Tomasz Napierala [68] = FSCALE * 0.03337326996032607948, 25836af9869SEdward Tomasz Napierala [69] = FSCALE * 0.03174563637806794323, 25936af9869SEdward Tomasz Napierala [70] = FSCALE * 0.03019738342231850073, 26036af9869SEdward Tomasz Napierala [71] = FSCALE * 0.02872463965423942912, 26136af9869SEdward Tomasz Napierala [72] = FSCALE * 0.02732372244729256080, 26236af9869SEdward Tomasz Napierala [73] = FSCALE * 0.02599112877875534358, 26336af9869SEdward Tomasz Napierala [74] = FSCALE * 0.02472352647033939120, 26436af9869SEdward Tomasz Napierala [75] = FSCALE * 0.02351774585600910823, 26536af9869SEdward Tomasz Napierala [76] = FSCALE * 0.02237077185616559577, 26636af9869SEdward Tomasz Napierala [77] = FSCALE * 0.02127973643837716938, 26736af9869SEdward Tomasz Napierala [78] = FSCALE * 0.02024191144580438847, 26836af9869SEdward Tomasz Napierala [79] = FSCALE * 0.01925470177538692429, 26936af9869SEdward Tomasz Napierala [80] = FSCALE * 0.01831563888873418029, 27036af9869SEdward Tomasz Napierala [81] = FSCALE * 0.01742237463949351138, 27136af9869SEdward Tomasz Napierala [82] = FSCALE * 0.01657267540176124754, 27236af9869SEdward Tomasz Napierala [83] = FSCALE * 0.01576441648485449082, 27336af9869SEdward Tomasz Napierala [84] = FSCALE * 0.01499557682047770621, 27436af9869SEdward Tomasz Napierala [85] = FSCALE * 0.01426423390899925527, 27536af9869SEdward Tomasz Napierala [86] = FSCALE * 0.01356855901220093175, 27636af9869SEdward Tomasz Napierala [87] = FSCALE * 0.01290681258047986886, 27736af9869SEdward Tomasz Napierala [88] = FSCALE * 0.01227733990306844117, 27836af9869SEdward Tomasz Napierala [89] = FSCALE * 0.01167856697039544521, 27936af9869SEdward Tomasz Napierala [90] = FSCALE * 0.01110899653824230649, 28036af9869SEdward Tomasz Napierala [91] = FSCALE * 0.01056720438385265337, 28136af9869SEdward Tomasz Napierala [92] = FSCALE * 0.01005183574463358164, 28236af9869SEdward Tomasz Napierala [93] = FSCALE * 0.00956160193054350793, 28336af9869SEdward Tomasz Napierala [94] = FSCALE * 0.00909527710169581709, 28436af9869SEdward Tomasz Napierala [95] = FSCALE * 0.00865169520312063417, 28536af9869SEdward Tomasz Napierala [96] = FSCALE * 0.00822974704902002884, 28636af9869SEdward Tomasz Napierala [97] = FSCALE * 0.00782837754922577143, 28736af9869SEdward Tomasz Napierala [98] = FSCALE * 0.00744658307092434051, 28836af9869SEdward Tomasz Napierala [99] = FSCALE * 0.00708340892905212004, 28936af9869SEdward Tomasz Napierala [100] = FSCALE * 0.00673794699908546709, 29036af9869SEdward Tomasz Napierala [101] = FSCALE * 0.00640933344625638184, 29136af9869SEdward Tomasz Napierala [102] = FSCALE * 0.00609674656551563610, 29236af9869SEdward Tomasz Napierala [103] = FSCALE * 0.00579940472684214321, 29336af9869SEdward Tomasz Napierala [104] = FSCALE * 0.00551656442076077241, 29436af9869SEdward Tomasz Napierala [105] = FSCALE * 0.00524751839918138427, 29536af9869SEdward Tomasz Napierala [106] = FSCALE * 0.00499159390691021621, 29636af9869SEdward Tomasz Napierala [107] = FSCALE * 0.00474815099941147558, 29736af9869SEdward Tomasz Napierala [108] = FSCALE * 0.00451658094261266798, 29836af9869SEdward Tomasz Napierala [109] = FSCALE * 0.00429630469075234057, 29936af9869SEdward Tomasz Napierala [110] = FSCALE * 0.00408677143846406699, 30036af9869SEdward Tomasz Napierala }; 30136af9869SEdward Tomasz Napierala #endif 30236af9869SEdward Tomasz Napierala 30336af9869SEdward Tomasz Napierala #define CCPU_EXP_MAX 110 30436af9869SEdward Tomasz Napierala 30536af9869SEdward Tomasz Napierala /* 30636af9869SEdward Tomasz Napierala * This function is analogical to the getpcpu() function in the ps(1) command. 30736af9869SEdward Tomasz Napierala * They should both calculate in the same way so that the racct %cpu 30836af9869SEdward Tomasz Napierala * calculations are consistent with the values showed by the ps(1) tool. 30936af9869SEdward Tomasz Napierala * The calculations are more complex in the 4BSD scheduler because of the value 31036af9869SEdward Tomasz Napierala * of the ccpu variable. In ULE it is defined to be zero which saves us some 31136af9869SEdward Tomasz Napierala * work. 31236af9869SEdward Tomasz Napierala */ 31336af9869SEdward Tomasz Napierala static uint64_t 31436af9869SEdward Tomasz Napierala racct_getpcpu(struct proc *p, u_int pcpu) 31536af9869SEdward Tomasz Napierala { 31636af9869SEdward Tomasz Napierala u_int swtime; 31736af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 31836af9869SEdward Tomasz Napierala fixpt_t pctcpu, pctcpu_next; 31936af9869SEdward Tomasz Napierala #endif 32036af9869SEdward Tomasz Napierala #ifdef SMP 32136af9869SEdward Tomasz Napierala struct pcpu *pc; 32236af9869SEdward Tomasz Napierala int found; 32336af9869SEdward Tomasz Napierala #endif 32436af9869SEdward Tomasz Napierala fixpt_t p_pctcpu; 32536af9869SEdward Tomasz Napierala struct thread *td; 32636af9869SEdward Tomasz Napierala 3274b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 3284b5c9cf6SEdward Tomasz Napierala 32936af9869SEdward Tomasz Napierala /* 33036af9869SEdward Tomasz Napierala * If the process is swapped out, we count its %cpu usage as zero. 33136af9869SEdward Tomasz Napierala * This behaviour is consistent with the userland ps(1) tool. 33236af9869SEdward Tomasz Napierala */ 33336af9869SEdward Tomasz Napierala if ((p->p_flag & P_INMEM) == 0) 33436af9869SEdward Tomasz Napierala return (0); 33536af9869SEdward Tomasz Napierala swtime = (ticks - p->p_swtick) / hz; 33636af9869SEdward Tomasz Napierala 33736af9869SEdward Tomasz Napierala /* 33836af9869SEdward Tomasz Napierala * For short-lived processes, the sched_pctcpu() returns small 33936af9869SEdward Tomasz Napierala * values even for cpu intensive processes. Therefore we use 34036af9869SEdward Tomasz Napierala * our own estimate in this case. 34136af9869SEdward Tomasz Napierala */ 34236af9869SEdward Tomasz Napierala if (swtime < RACCT_PCPU_SECS) 34336af9869SEdward Tomasz Napierala return (pcpu); 34436af9869SEdward Tomasz Napierala 34536af9869SEdward Tomasz Napierala p_pctcpu = 0; 34636af9869SEdward Tomasz Napierala FOREACH_THREAD_IN_PROC(p, td) { 34736af9869SEdward Tomasz Napierala if (td == PCPU_GET(idlethread)) 34836af9869SEdward Tomasz Napierala continue; 34936af9869SEdward Tomasz Napierala #ifdef SMP 35036af9869SEdward Tomasz Napierala found = 0; 35136af9869SEdward Tomasz Napierala STAILQ_FOREACH(pc, &cpuhead, pc_allcpu) { 35236af9869SEdward Tomasz Napierala if (td == pc->pc_idlethread) { 35336af9869SEdward Tomasz Napierala found = 1; 35436af9869SEdward Tomasz Napierala break; 35536af9869SEdward Tomasz Napierala } 35636af9869SEdward Tomasz Napierala } 35736af9869SEdward Tomasz Napierala if (found) 35836af9869SEdward Tomasz Napierala continue; 35936af9869SEdward Tomasz Napierala #endif 36036af9869SEdward Tomasz Napierala thread_lock(td); 36136af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 36236af9869SEdward Tomasz Napierala pctcpu = sched_pctcpu(td); 36336af9869SEdward Tomasz Napierala /* Count also the yet unfinished second. */ 36436af9869SEdward Tomasz Napierala pctcpu_next = (pctcpu * ccpu_exp[1]) >> FSHIFT; 36536af9869SEdward Tomasz Napierala pctcpu_next += sched_pctcpu_delta(td); 36636af9869SEdward Tomasz Napierala p_pctcpu += max(pctcpu, pctcpu_next); 36736af9869SEdward Tomasz Napierala #else 36836af9869SEdward Tomasz Napierala /* 36936af9869SEdward Tomasz Napierala * In ULE the %cpu statistics are updated on every 37036af9869SEdward Tomasz Napierala * sched_pctcpu() call. So special calculations to 37136af9869SEdward Tomasz Napierala * account for the latest (unfinished) second are 37236af9869SEdward Tomasz Napierala * not needed. 37336af9869SEdward Tomasz Napierala */ 37436af9869SEdward Tomasz Napierala p_pctcpu += sched_pctcpu(td); 37536af9869SEdward Tomasz Napierala #endif 37636af9869SEdward Tomasz Napierala thread_unlock(td); 37736af9869SEdward Tomasz Napierala } 37836af9869SEdward Tomasz Napierala 37936af9869SEdward Tomasz Napierala #ifdef SCHED_4BSD 38036af9869SEdward Tomasz Napierala if (swtime <= CCPU_EXP_MAX) 38136af9869SEdward Tomasz Napierala return ((100 * (uint64_t)p_pctcpu * 1000000) / 38236af9869SEdward Tomasz Napierala (FSCALE - ccpu_exp[swtime])); 38336af9869SEdward Tomasz Napierala #endif 38436af9869SEdward Tomasz Napierala 38536af9869SEdward Tomasz Napierala return ((100 * (uint64_t)p_pctcpu * 1000000) / FSCALE); 38636af9869SEdward Tomasz Napierala } 387097055e2SEdward Tomasz Napierala 388097055e2SEdward Tomasz Napierala static void 389097055e2SEdward Tomasz Napierala racct_add_racct(struct racct *dest, const struct racct *src) 390097055e2SEdward Tomasz Napierala { 391097055e2SEdward Tomasz Napierala int i; 392097055e2SEdward Tomasz Napierala 3934b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 394097055e2SEdward Tomasz Napierala mtx_assert(&racct_lock, MA_OWNED); 395097055e2SEdward Tomasz Napierala 396097055e2SEdward Tomasz Napierala /* 397097055e2SEdward Tomasz Napierala * Update resource usage in dest. 398097055e2SEdward Tomasz Napierala */ 399097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 400097055e2SEdward Tomasz Napierala KASSERT(dest->r_resources[i] >= 0, 401baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: dest < 0", 402baf85d0aSEdward Tomasz Napierala __func__, i)); 403097055e2SEdward Tomasz Napierala KASSERT(src->r_resources[i] >= 0, 404baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: src < 0", 405baf85d0aSEdward Tomasz Napierala __func__, i)); 406097055e2SEdward Tomasz Napierala dest->r_resources[i] += src->r_resources[i]; 407097055e2SEdward Tomasz Napierala } 408097055e2SEdward Tomasz Napierala } 409097055e2SEdward Tomasz Napierala 410097055e2SEdward Tomasz Napierala static void 411097055e2SEdward Tomasz Napierala racct_sub_racct(struct racct *dest, const struct racct *src) 412097055e2SEdward Tomasz Napierala { 413097055e2SEdward Tomasz Napierala int i; 414097055e2SEdward Tomasz Napierala 4154b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 416097055e2SEdward Tomasz Napierala mtx_assert(&racct_lock, MA_OWNED); 417097055e2SEdward Tomasz Napierala 418097055e2SEdward Tomasz Napierala /* 419097055e2SEdward Tomasz Napierala * Update resource usage in dest. 420097055e2SEdward Tomasz Napierala */ 421097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 42284c9193bSEdward Tomasz Napierala if (!RACCT_IS_SLOPPY(i) && !RACCT_IS_DECAYING(i)) { 423097055e2SEdward Tomasz Napierala KASSERT(dest->r_resources[i] >= 0, 424baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: dest < 0", 425baf85d0aSEdward Tomasz Napierala __func__, i)); 426097055e2SEdward Tomasz Napierala KASSERT(src->r_resources[i] >= 0, 427baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: src < 0", 428baf85d0aSEdward Tomasz Napierala __func__, i)); 429097055e2SEdward Tomasz Napierala KASSERT(src->r_resources[i] <= dest->r_resources[i], 430baf85d0aSEdward Tomasz Napierala ("%s: resource %d propagation meltdown: src > dest", 431baf85d0aSEdward Tomasz Napierala __func__, i)); 432097055e2SEdward Tomasz Napierala } 43336af9869SEdward Tomasz Napierala if (RACCT_CAN_DROP(i)) { 434097055e2SEdward Tomasz Napierala dest->r_resources[i] -= src->r_resources[i]; 435097055e2SEdward Tomasz Napierala if (dest->r_resources[i] < 0) { 43684c9193bSEdward Tomasz Napierala KASSERT(RACCT_IS_SLOPPY(i) || 43784c9193bSEdward Tomasz Napierala RACCT_IS_DECAYING(i), 438baf85d0aSEdward Tomasz Napierala ("%s: resource %d usage < 0", __func__, i)); 439097055e2SEdward Tomasz Napierala dest->r_resources[i] = 0; 440097055e2SEdward Tomasz Napierala } 441097055e2SEdward Tomasz Napierala } 442097055e2SEdward Tomasz Napierala } 443097055e2SEdward Tomasz Napierala } 444097055e2SEdward Tomasz Napierala 445097055e2SEdward Tomasz Napierala void 446097055e2SEdward Tomasz Napierala racct_create(struct racct **racctp) 447097055e2SEdward Tomasz Napierala { 448097055e2SEdward Tomasz Napierala 4494b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 4504b5c9cf6SEdward Tomasz Napierala return; 4514b5c9cf6SEdward Tomasz Napierala 45236160958SMark Johnston SDT_PROBE1(racct, , racct, create, racctp); 453097055e2SEdward Tomasz Napierala 454097055e2SEdward Tomasz Napierala KASSERT(*racctp == NULL, ("racct already allocated")); 455097055e2SEdward Tomasz Napierala 456097055e2SEdward Tomasz Napierala *racctp = uma_zalloc(racct_zone, M_WAITOK | M_ZERO); 457097055e2SEdward Tomasz Napierala } 458097055e2SEdward Tomasz Napierala 459097055e2SEdward Tomasz Napierala static void 460097055e2SEdward Tomasz Napierala racct_destroy_locked(struct racct **racctp) 461097055e2SEdward Tomasz Napierala { 462097055e2SEdward Tomasz Napierala int i; 463097055e2SEdward Tomasz Napierala struct racct *racct; 464097055e2SEdward Tomasz Napierala 4654b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 4664b5c9cf6SEdward Tomasz Napierala 46736160958SMark Johnston SDT_PROBE1(racct, , racct, destroy, racctp); 468097055e2SEdward Tomasz Napierala 469097055e2SEdward Tomasz Napierala mtx_assert(&racct_lock, MA_OWNED); 470097055e2SEdward Tomasz Napierala KASSERT(racctp != NULL, ("NULL racctp")); 471097055e2SEdward Tomasz Napierala KASSERT(*racctp != NULL, ("NULL racct")); 472097055e2SEdward Tomasz Napierala 473097055e2SEdward Tomasz Napierala racct = *racctp; 474097055e2SEdward Tomasz Napierala 475097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 4764fe84775SEdward Tomasz Napierala if (RACCT_IS_SLOPPY(i)) 477097055e2SEdward Tomasz Napierala continue; 4784fe84775SEdward Tomasz Napierala if (!RACCT_IS_RECLAIMABLE(i)) 479097055e2SEdward Tomasz Napierala continue; 480097055e2SEdward Tomasz Napierala KASSERT(racct->r_resources[i] == 0, 481097055e2SEdward Tomasz Napierala ("destroying non-empty racct: " 482097055e2SEdward Tomasz Napierala "%ju allocated for resource %d\n", 483097055e2SEdward Tomasz Napierala racct->r_resources[i], i)); 484097055e2SEdward Tomasz Napierala } 485097055e2SEdward Tomasz Napierala uma_zfree(racct_zone, racct); 486097055e2SEdward Tomasz Napierala *racctp = NULL; 487097055e2SEdward Tomasz Napierala } 488097055e2SEdward Tomasz Napierala 489097055e2SEdward Tomasz Napierala void 490097055e2SEdward Tomasz Napierala racct_destroy(struct racct **racct) 491097055e2SEdward Tomasz Napierala { 492097055e2SEdward Tomasz Napierala 4934b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 4944b5c9cf6SEdward Tomasz Napierala return; 4954b5c9cf6SEdward Tomasz Napierala 496097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 497097055e2SEdward Tomasz Napierala racct_destroy_locked(racct); 498097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 499097055e2SEdward Tomasz Napierala } 500097055e2SEdward Tomasz Napierala 501097055e2SEdward Tomasz Napierala /* 502af1a7b25SEdward Tomasz Napierala * Increase consumption of 'resource' by 'amount' for 'racct', 503af1a7b25SEdward Tomasz Napierala * but not its parents. Differently from other cases, 'amount' here 504097055e2SEdward Tomasz Napierala * may be less than zero. 505097055e2SEdward Tomasz Napierala */ 506097055e2SEdward Tomasz Napierala static void 5073768a5dfSJeremie Le Hen racct_adjust_resource(struct racct *racct, int resource, 508a8e0740eSEdward Tomasz Napierala int64_t amount) 509097055e2SEdward Tomasz Napierala { 510097055e2SEdward Tomasz Napierala 5114b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 512097055e2SEdward Tomasz Napierala mtx_assert(&racct_lock, MA_OWNED); 513097055e2SEdward Tomasz Napierala KASSERT(racct != NULL, ("NULL racct")); 514097055e2SEdward Tomasz Napierala 515097055e2SEdward Tomasz Napierala racct->r_resources[resource] += amount; 516097055e2SEdward Tomasz Napierala if (racct->r_resources[resource] < 0) { 51736af9869SEdward Tomasz Napierala KASSERT(RACCT_IS_SLOPPY(resource) || RACCT_IS_DECAYING(resource), 518baf85d0aSEdward Tomasz Napierala ("%s: resource %d usage < 0", __func__, resource)); 519097055e2SEdward Tomasz Napierala racct->r_resources[resource] = 0; 520097055e2SEdward Tomasz Napierala } 52136af9869SEdward Tomasz Napierala 52236af9869SEdward Tomasz Napierala /* 52336af9869SEdward Tomasz Napierala * There are some cases where the racct %cpu resource would grow 52409766dd5SJosh Paetzel * beyond 100% per core. For example in racct_proc_exit() we add 52509766dd5SJosh Paetzel * the process %cpu usage to the ucred racct containers. If too 52609766dd5SJosh Paetzel * many processes terminated in a short time span, the ucred %cpu 52709766dd5SJosh Paetzel * resource could grow too much. Also, the 4BSD scheduler sometimes 52809766dd5SJosh Paetzel * returns for a thread more than 100% cpu usage. So we set a sane 52909766dd5SJosh Paetzel * boundary here to 100% * the maxumum number of CPUs. 53036af9869SEdward Tomasz Napierala */ 53136af9869SEdward Tomasz Napierala if ((resource == RACCT_PCTCPU) && 53209766dd5SJosh Paetzel (racct->r_resources[RACCT_PCTCPU] > 100 * 1000000 * (int64_t)MAXCPU)) 53309766dd5SJosh Paetzel racct->r_resources[RACCT_PCTCPU] = 100 * 1000000 * (int64_t)MAXCPU; 534097055e2SEdward Tomasz Napierala } 535097055e2SEdward Tomasz Napierala 5362d8696d1SEdward Tomasz Napierala static int 537*7cea96f6SEdward Tomasz Napierala racct_add_locked(struct proc *p, int resource, uint64_t amount, int force) 538097055e2SEdward Tomasz Napierala { 539097055e2SEdward Tomasz Napierala #ifdef RCTL 540097055e2SEdward Tomasz Napierala int error; 541097055e2SEdward Tomasz Napierala #endif 542097055e2SEdward Tomasz Napierala 5434b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 5444b5c9cf6SEdward Tomasz Napierala 545097055e2SEdward Tomasz Napierala /* 546097055e2SEdward Tomasz Napierala * We need proc lock to dereference p->p_ucred. 547097055e2SEdward Tomasz Napierala */ 548097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 549097055e2SEdward Tomasz Napierala 550097055e2SEdward Tomasz Napierala #ifdef RCTL 551*7cea96f6SEdward Tomasz Napierala if (!force) { 552097055e2SEdward Tomasz Napierala error = rctl_enforce(p, resource, amount); 5534fe84775SEdward Tomasz Napierala if (error && RACCT_IS_DENIABLE(resource)) { 55436160958SMark Johnston SDT_PROBE3(racct, , rusage, add__failure, p, resource, amount); 555097055e2SEdward Tomasz Napierala return (error); 556097055e2SEdward Tomasz Napierala } 557*7cea96f6SEdward Tomasz Napierala } 558097055e2SEdward Tomasz Napierala #endif 5593768a5dfSJeremie Le Hen racct_adjust_resource(p->p_racct, resource, amount); 560097055e2SEdward Tomasz Napierala racct_add_cred_locked(p->p_ucred, resource, amount); 561097055e2SEdward Tomasz Napierala 562097055e2SEdward Tomasz Napierala return (0); 563097055e2SEdward Tomasz Napierala } 564097055e2SEdward Tomasz Napierala 5652d8696d1SEdward Tomasz Napierala /* 5662d8696d1SEdward Tomasz Napierala * Increase allocation of 'resource' by 'amount' for process 'p'. 5672d8696d1SEdward Tomasz Napierala * Return 0 if it's below limits, or errno, if it's not. 5682d8696d1SEdward Tomasz Napierala */ 5692d8696d1SEdward Tomasz Napierala int 5702d8696d1SEdward Tomasz Napierala racct_add(struct proc *p, int resource, uint64_t amount) 5712d8696d1SEdward Tomasz Napierala { 5722d8696d1SEdward Tomasz Napierala int error; 5732d8696d1SEdward Tomasz Napierala 5744b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 5754b5c9cf6SEdward Tomasz Napierala return (0); 5764b5c9cf6SEdward Tomasz Napierala 577*7cea96f6SEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, add, p, resource, amount); 578*7cea96f6SEdward Tomasz Napierala 5792d8696d1SEdward Tomasz Napierala mtx_lock(&racct_lock); 580*7cea96f6SEdward Tomasz Napierala error = racct_add_locked(p, resource, amount, 0); 5812d8696d1SEdward Tomasz Napierala mtx_unlock(&racct_lock); 5822d8696d1SEdward Tomasz Napierala return (error); 5832d8696d1SEdward Tomasz Napierala } 5842d8696d1SEdward Tomasz Napierala 585097055e2SEdward Tomasz Napierala static void 586097055e2SEdward Tomasz Napierala racct_add_cred_locked(struct ucred *cred, int resource, uint64_t amount) 587097055e2SEdward Tomasz Napierala { 588097055e2SEdward Tomasz Napierala struct prison *pr; 589097055e2SEdward Tomasz Napierala 5904b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 5914b5c9cf6SEdward Tomasz Napierala 59236160958SMark Johnston SDT_PROBE3(racct, , rusage, add__cred, cred, resource, amount); 593097055e2SEdward Tomasz Napierala 5943768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_ruidinfo->ui_racct, resource, amount); 595097055e2SEdward Tomasz Napierala for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent) 5963768a5dfSJeremie Le Hen racct_adjust_resource(pr->pr_prison_racct->prr_racct, resource, 597a7ad07bfSEdward Tomasz Napierala amount); 5983768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_loginclass->lc_racct, resource, amount); 599097055e2SEdward Tomasz Napierala } 600097055e2SEdward Tomasz Napierala 601097055e2SEdward Tomasz Napierala /* 602097055e2SEdward Tomasz Napierala * Increase allocation of 'resource' by 'amount' for credential 'cred'. 603097055e2SEdward Tomasz Napierala * Doesn't check for limits and never fails. 604097055e2SEdward Tomasz Napierala */ 605097055e2SEdward Tomasz Napierala void 606097055e2SEdward Tomasz Napierala racct_add_cred(struct ucred *cred, int resource, uint64_t amount) 607097055e2SEdward Tomasz Napierala { 608097055e2SEdward Tomasz Napierala 6094b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 6104b5c9cf6SEdward Tomasz Napierala return; 6114b5c9cf6SEdward Tomasz Napierala 612097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 613097055e2SEdward Tomasz Napierala racct_add_cred_locked(cred, resource, amount); 614097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 615097055e2SEdward Tomasz Napierala } 616097055e2SEdward Tomasz Napierala 617097055e2SEdward Tomasz Napierala /* 618097055e2SEdward Tomasz Napierala * Increase allocation of 'resource' by 'amount' for process 'p'. 619097055e2SEdward Tomasz Napierala * Doesn't check for limits and never fails. 620097055e2SEdward Tomasz Napierala */ 621097055e2SEdward Tomasz Napierala void 622097055e2SEdward Tomasz Napierala racct_add_force(struct proc *p, int resource, uint64_t amount) 623097055e2SEdward Tomasz Napierala { 624097055e2SEdward Tomasz Napierala 6254b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 6264b5c9cf6SEdward Tomasz Napierala return; 6274b5c9cf6SEdward Tomasz Napierala 62836160958SMark Johnston SDT_PROBE3(racct, , rusage, add__force, p, resource, amount); 629097055e2SEdward Tomasz Napierala 630097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 631*7cea96f6SEdward Tomasz Napierala racct_add_locked(p, resource, amount, 1); 632097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 633097055e2SEdward Tomasz Napierala } 634097055e2SEdward Tomasz Napierala 635097055e2SEdward Tomasz Napierala static int 63610287198SEdward Tomasz Napierala racct_set_locked(struct proc *p, int resource, uint64_t amount, int force) 637097055e2SEdward Tomasz Napierala { 63836af9869SEdward Tomasz Napierala int64_t old_amount, decayed_amount; 63936af9869SEdward Tomasz Napierala int64_t diff_proc, diff_cred; 640097055e2SEdward Tomasz Napierala #ifdef RCTL 641097055e2SEdward Tomasz Napierala int error; 642097055e2SEdward Tomasz Napierala #endif 643097055e2SEdward Tomasz Napierala 6444b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 6454b5c9cf6SEdward Tomasz Napierala 646097055e2SEdward Tomasz Napierala /* 647097055e2SEdward Tomasz Napierala * We need proc lock to dereference p->p_ucred. 648097055e2SEdward Tomasz Napierala */ 649097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 650097055e2SEdward Tomasz Napierala 65136af9869SEdward Tomasz Napierala old_amount = p->p_racct->r_resources[resource]; 65236af9869SEdward Tomasz Napierala /* 65336af9869SEdward Tomasz Napierala * The diffs may be negative. 65436af9869SEdward Tomasz Napierala */ 65536af9869SEdward Tomasz Napierala diff_proc = amount - old_amount; 65636af9869SEdward Tomasz Napierala if (RACCT_IS_DECAYING(resource)) { 65736af9869SEdward Tomasz Napierala /* 65836af9869SEdward Tomasz Napierala * Resources in per-credential racct containers may decay. 65936af9869SEdward Tomasz Napierala * If this is the case, we need to calculate the difference 66036af9869SEdward Tomasz Napierala * between the new amount and the proportional value of the 66136af9869SEdward Tomasz Napierala * old amount that has decayed in the ucred racct containers. 66236af9869SEdward Tomasz Napierala */ 66336af9869SEdward Tomasz Napierala decayed_amount = old_amount * RACCT_DECAY_FACTOR / FSCALE; 66436af9869SEdward Tomasz Napierala diff_cred = amount - decayed_amount; 66536af9869SEdward Tomasz Napierala } else 66636af9869SEdward Tomasz Napierala diff_cred = diff_proc; 667097055e2SEdward Tomasz Napierala #ifdef notyet 66836af9869SEdward Tomasz Napierala KASSERT(diff_proc >= 0 || RACCT_CAN_DROP(resource), 669baf85d0aSEdward Tomasz Napierala ("%s: usage of non-droppable resource %d dropping", __func__, 670097055e2SEdward Tomasz Napierala resource)); 671097055e2SEdward Tomasz Napierala #endif 672097055e2SEdward Tomasz Napierala #ifdef RCTL 67310287198SEdward Tomasz Napierala if (!force && diff_proc > 0) { 67436af9869SEdward Tomasz Napierala error = rctl_enforce(p, resource, diff_proc); 6754fe84775SEdward Tomasz Napierala if (error && RACCT_IS_DENIABLE(resource)) { 67636160958SMark Johnston SDT_PROBE3(racct, , rusage, set__failure, p, resource, 67736160958SMark Johnston amount); 678097055e2SEdward Tomasz Napierala return (error); 679097055e2SEdward Tomasz Napierala } 680097055e2SEdward Tomasz Napierala } 681097055e2SEdward Tomasz Napierala #endif 6823768a5dfSJeremie Le Hen racct_adjust_resource(p->p_racct, resource, diff_proc); 68336af9869SEdward Tomasz Napierala if (diff_cred > 0) 68436af9869SEdward Tomasz Napierala racct_add_cred_locked(p->p_ucred, resource, diff_cred); 68536af9869SEdward Tomasz Napierala else if (diff_cred < 0) 68636af9869SEdward Tomasz Napierala racct_sub_cred_locked(p->p_ucred, resource, -diff_cred); 687097055e2SEdward Tomasz Napierala 688097055e2SEdward Tomasz Napierala return (0); 689097055e2SEdward Tomasz Napierala } 690097055e2SEdward Tomasz Napierala 69110287198SEdward Tomasz Napierala void 69210287198SEdward Tomasz Napierala racct_set_force(struct proc *p, int resource, uint64_t amount) 69310287198SEdward Tomasz Napierala { 69410287198SEdward Tomasz Napierala 69510287198SEdward Tomasz Napierala if (!racct_enable) 69610287198SEdward Tomasz Napierala return; 69710287198SEdward Tomasz Napierala 69810287198SEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, set, p, resource, amount); 69910287198SEdward Tomasz Napierala 70010287198SEdward Tomasz Napierala mtx_lock(&racct_lock); 70110287198SEdward Tomasz Napierala racct_set_locked(p, resource, amount, 1); 70210287198SEdward Tomasz Napierala mtx_unlock(&racct_lock); 70310287198SEdward Tomasz Napierala } 70410287198SEdward Tomasz Napierala 705097055e2SEdward Tomasz Napierala /* 706097055e2SEdward Tomasz Napierala * Set allocation of 'resource' to 'amount' for process 'p'. 707097055e2SEdward Tomasz Napierala * Return 0 if it's below limits, or errno, if it's not. 708097055e2SEdward Tomasz Napierala * 709097055e2SEdward Tomasz Napierala * Note that decreasing the allocation always returns 0, 710097055e2SEdward Tomasz Napierala * even if it's above the limit. 711097055e2SEdward Tomasz Napierala */ 712097055e2SEdward Tomasz Napierala int 713097055e2SEdward Tomasz Napierala racct_set(struct proc *p, int resource, uint64_t amount) 714097055e2SEdward Tomasz Napierala { 715097055e2SEdward Tomasz Napierala int error; 716097055e2SEdward Tomasz Napierala 7174b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7184b5c9cf6SEdward Tomasz Napierala return (0); 7194b5c9cf6SEdward Tomasz Napierala 72010287198SEdward Tomasz Napierala SDT_PROBE3(racct, , rusage, set__force, p, resource, amount); 72110287198SEdward Tomasz Napierala 722097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 72310287198SEdward Tomasz Napierala error = racct_set_locked(p, resource, amount, 0); 724097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 725097055e2SEdward Tomasz Napierala return (error); 726097055e2SEdward Tomasz Napierala } 727097055e2SEdward Tomasz Napierala 728097055e2SEdward Tomasz Napierala /* 729097055e2SEdward Tomasz Napierala * Returns amount of 'resource' the process 'p' can keep allocated. 730097055e2SEdward Tomasz Napierala * Allocating more than that would be denied, unless the resource 731097055e2SEdward Tomasz Napierala * is marked undeniable. Amount of already allocated resource does 732097055e2SEdward Tomasz Napierala * not matter. 733097055e2SEdward Tomasz Napierala */ 734097055e2SEdward Tomasz Napierala uint64_t 735097055e2SEdward Tomasz Napierala racct_get_limit(struct proc *p, int resource) 736097055e2SEdward Tomasz Napierala { 737097055e2SEdward Tomasz Napierala 7384b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7394b5c9cf6SEdward Tomasz Napierala return (UINT64_MAX); 7404b5c9cf6SEdward Tomasz Napierala 741097055e2SEdward Tomasz Napierala #ifdef RCTL 742097055e2SEdward Tomasz Napierala return (rctl_get_limit(p, resource)); 743097055e2SEdward Tomasz Napierala #else 744097055e2SEdward Tomasz Napierala return (UINT64_MAX); 745097055e2SEdward Tomasz Napierala #endif 746097055e2SEdward Tomasz Napierala } 747097055e2SEdward Tomasz Napierala 748097055e2SEdward Tomasz Napierala /* 749097055e2SEdward Tomasz Napierala * Returns amount of 'resource' the process 'p' can keep allocated. 750097055e2SEdward Tomasz Napierala * Allocating more than that would be denied, unless the resource 751097055e2SEdward Tomasz Napierala * is marked undeniable. Amount of already allocated resource does 752097055e2SEdward Tomasz Napierala * matter. 753097055e2SEdward Tomasz Napierala */ 754097055e2SEdward Tomasz Napierala uint64_t 755097055e2SEdward Tomasz Napierala racct_get_available(struct proc *p, int resource) 756097055e2SEdward Tomasz Napierala { 757097055e2SEdward Tomasz Napierala 7584b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7594b5c9cf6SEdward Tomasz Napierala return (UINT64_MAX); 7604b5c9cf6SEdward Tomasz Napierala 761097055e2SEdward Tomasz Napierala #ifdef RCTL 762097055e2SEdward Tomasz Napierala return (rctl_get_available(p, resource)); 763097055e2SEdward Tomasz Napierala #else 764097055e2SEdward Tomasz Napierala return (UINT64_MAX); 765097055e2SEdward Tomasz Napierala #endif 766097055e2SEdward Tomasz Napierala } 767097055e2SEdward Tomasz Napierala 768097055e2SEdward Tomasz Napierala /* 76936af9869SEdward Tomasz Napierala * Returns amount of the %cpu resource that process 'p' can add to its %cpu 77036af9869SEdward Tomasz Napierala * utilization. Adding more than that would lead to the process being 77136af9869SEdward Tomasz Napierala * throttled. 77236af9869SEdward Tomasz Napierala */ 77336af9869SEdward Tomasz Napierala static int64_t 77436af9869SEdward Tomasz Napierala racct_pcpu_available(struct proc *p) 77536af9869SEdward Tomasz Napierala { 77636af9869SEdward Tomasz Napierala 7774b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 7784b5c9cf6SEdward Tomasz Napierala 77936af9869SEdward Tomasz Napierala #ifdef RCTL 78036af9869SEdward Tomasz Napierala return (rctl_pcpu_available(p)); 78136af9869SEdward Tomasz Napierala #else 78236af9869SEdward Tomasz Napierala return (INT64_MAX); 78336af9869SEdward Tomasz Napierala #endif 78436af9869SEdward Tomasz Napierala } 78536af9869SEdward Tomasz Napierala 78636af9869SEdward Tomasz Napierala /* 787097055e2SEdward Tomasz Napierala * Decrease allocation of 'resource' by 'amount' for process 'p'. 788097055e2SEdward Tomasz Napierala */ 789097055e2SEdward Tomasz Napierala void 790097055e2SEdward Tomasz Napierala racct_sub(struct proc *p, int resource, uint64_t amount) 791097055e2SEdward Tomasz Napierala { 792097055e2SEdward Tomasz Napierala 7934b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 7944b5c9cf6SEdward Tomasz Napierala return; 7954b5c9cf6SEdward Tomasz Napierala 79636160958SMark Johnston SDT_PROBE3(racct, , rusage, sub, p, resource, amount); 797097055e2SEdward Tomasz Napierala 798097055e2SEdward Tomasz Napierala /* 799097055e2SEdward Tomasz Napierala * We need proc lock to dereference p->p_ucred. 800097055e2SEdward Tomasz Napierala */ 801097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 80236af9869SEdward Tomasz Napierala KASSERT(RACCT_CAN_DROP(resource), 803baf85d0aSEdward Tomasz Napierala ("%s: called for non-droppable resource %d", __func__, resource)); 804097055e2SEdward Tomasz Napierala 805097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 806097055e2SEdward Tomasz Napierala KASSERT(amount <= p->p_racct->r_resources[resource], 807baf85d0aSEdward Tomasz Napierala ("%s: freeing %ju of resource %d, which is more " 808baf85d0aSEdward Tomasz Napierala "than allocated %jd for %s (pid %d)", __func__, amount, resource, 809097055e2SEdward Tomasz Napierala (intmax_t)p->p_racct->r_resources[resource], p->p_comm, p->p_pid)); 810097055e2SEdward Tomasz Napierala 8113768a5dfSJeremie Le Hen racct_adjust_resource(p->p_racct, resource, -amount); 812097055e2SEdward Tomasz Napierala racct_sub_cred_locked(p->p_ucred, resource, amount); 813097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 814097055e2SEdward Tomasz Napierala } 815097055e2SEdward Tomasz Napierala 816097055e2SEdward Tomasz Napierala static void 817097055e2SEdward Tomasz Napierala racct_sub_cred_locked(struct ucred *cred, int resource, uint64_t amount) 818097055e2SEdward Tomasz Napierala { 819097055e2SEdward Tomasz Napierala struct prison *pr; 820097055e2SEdward Tomasz Napierala 8214b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 8224b5c9cf6SEdward Tomasz Napierala 82336160958SMark Johnston SDT_PROBE3(racct, , rusage, sub__cred, cred, resource, amount); 824097055e2SEdward Tomasz Napierala 825097055e2SEdward Tomasz Napierala #ifdef notyet 82636af9869SEdward Tomasz Napierala KASSERT(RACCT_CAN_DROP(resource), 827baf85d0aSEdward Tomasz Napierala ("%s: called for resource %d which can not drop", __func__, 828097055e2SEdward Tomasz Napierala resource)); 829097055e2SEdward Tomasz Napierala #endif 830097055e2SEdward Tomasz Napierala 8313768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_ruidinfo->ui_racct, resource, -amount); 832097055e2SEdward Tomasz Napierala for (pr = cred->cr_prison; pr != NULL; pr = pr->pr_parent) 8333768a5dfSJeremie Le Hen racct_adjust_resource(pr->pr_prison_racct->prr_racct, resource, 834a7ad07bfSEdward Tomasz Napierala -amount); 8353768a5dfSJeremie Le Hen racct_adjust_resource(cred->cr_loginclass->lc_racct, resource, -amount); 836097055e2SEdward Tomasz Napierala } 837097055e2SEdward Tomasz Napierala 838097055e2SEdward Tomasz Napierala /* 839097055e2SEdward Tomasz Napierala * Decrease allocation of 'resource' by 'amount' for credential 'cred'. 840097055e2SEdward Tomasz Napierala */ 841097055e2SEdward Tomasz Napierala void 842097055e2SEdward Tomasz Napierala racct_sub_cred(struct ucred *cred, int resource, uint64_t amount) 843097055e2SEdward Tomasz Napierala { 844097055e2SEdward Tomasz Napierala 8454b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 8464b5c9cf6SEdward Tomasz Napierala return; 8474b5c9cf6SEdward Tomasz Napierala 848097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 849097055e2SEdward Tomasz Napierala racct_sub_cred_locked(cred, resource, amount); 850097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 851097055e2SEdward Tomasz Napierala } 852097055e2SEdward Tomasz Napierala 853097055e2SEdward Tomasz Napierala /* 854097055e2SEdward Tomasz Napierala * Inherit resource usage information from the parent process. 855097055e2SEdward Tomasz Napierala */ 856097055e2SEdward Tomasz Napierala int 857097055e2SEdward Tomasz Napierala racct_proc_fork(struct proc *parent, struct proc *child) 858097055e2SEdward Tomasz Napierala { 859097055e2SEdward Tomasz Napierala int i, error = 0; 860097055e2SEdward Tomasz Napierala 8614b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 8624b5c9cf6SEdward Tomasz Napierala return (0); 8634b5c9cf6SEdward Tomasz Napierala 864097055e2SEdward Tomasz Napierala /* 865097055e2SEdward Tomasz Napierala * Create racct for the child process. 866097055e2SEdward Tomasz Napierala */ 867097055e2SEdward Tomasz Napierala racct_create(&child->p_racct); 868097055e2SEdward Tomasz Napierala 869097055e2SEdward Tomasz Napierala PROC_LOCK(parent); 870097055e2SEdward Tomasz Napierala PROC_LOCK(child); 871097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 872097055e2SEdward Tomasz Napierala 873c0c09362SEdward Tomasz Napierala #ifdef RCTL 874c0c09362SEdward Tomasz Napierala error = rctl_proc_fork(parent, child); 875c0c09362SEdward Tomasz Napierala if (error != 0) 876c0c09362SEdward Tomasz Napierala goto out; 877c0c09362SEdward Tomasz Napierala #endif 878c0c09362SEdward Tomasz Napierala 87936af9869SEdward Tomasz Napierala /* Init process cpu time. */ 88036af9869SEdward Tomasz Napierala child->p_prev_runtime = 0; 88136af9869SEdward Tomasz Napierala child->p_throttled = 0; 88236af9869SEdward Tomasz Napierala 883097055e2SEdward Tomasz Napierala /* 884097055e2SEdward Tomasz Napierala * Inherit resource usage. 885097055e2SEdward Tomasz Napierala */ 886097055e2SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 887097055e2SEdward Tomasz Napierala if (parent->p_racct->r_resources[i] == 0 || 8884fe84775SEdward Tomasz Napierala !RACCT_IS_INHERITABLE(i)) 889097055e2SEdward Tomasz Napierala continue; 890097055e2SEdward Tomasz Napierala 891097055e2SEdward Tomasz Napierala error = racct_set_locked(child, i, 89210287198SEdward Tomasz Napierala parent->p_racct->r_resources[i], 0); 893ac6fafe6SEdward Tomasz Napierala if (error != 0) 894097055e2SEdward Tomasz Napierala goto out; 895097055e2SEdward Tomasz Napierala } 896097055e2SEdward Tomasz Napierala 897*7cea96f6SEdward Tomasz Napierala error = racct_add_locked(child, RACCT_NPROC, 1, 0); 898*7cea96f6SEdward Tomasz Napierala error += racct_add_locked(child, RACCT_NTHR, 1, 0); 8992d8696d1SEdward Tomasz Napierala 900097055e2SEdward Tomasz Napierala out: 901097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 902097055e2SEdward Tomasz Napierala PROC_UNLOCK(child); 903097055e2SEdward Tomasz Napierala PROC_UNLOCK(parent); 904097055e2SEdward Tomasz Napierala 905ab27d5d8SEdward Tomasz Napierala if (error != 0) 906ab27d5d8SEdward Tomasz Napierala racct_proc_exit(child); 907ab27d5d8SEdward Tomasz Napierala 908097055e2SEdward Tomasz Napierala return (error); 909097055e2SEdward Tomasz Napierala } 910097055e2SEdward Tomasz Napierala 91172a401d9SEdward Tomasz Napierala /* 91272a401d9SEdward Tomasz Napierala * Called at the end of fork1(), to handle rules that require the process 91372a401d9SEdward Tomasz Napierala * to be fully initialized. 91472a401d9SEdward Tomasz Napierala */ 91572a401d9SEdward Tomasz Napierala void 91672a401d9SEdward Tomasz Napierala racct_proc_fork_done(struct proc *child) 91772a401d9SEdward Tomasz Napierala { 91872a401d9SEdward Tomasz Napierala 919813361c1SMateusz Guzik PROC_LOCK_ASSERT(child, MA_OWNED); 92072a401d9SEdward Tomasz Napierala #ifdef RCTL 9214b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 9224b5c9cf6SEdward Tomasz Napierala return; 9234b5c9cf6SEdward Tomasz Napierala 92472a401d9SEdward Tomasz Napierala mtx_lock(&racct_lock); 92572a401d9SEdward Tomasz Napierala rctl_enforce(child, RACCT_NPROC, 0); 92672a401d9SEdward Tomasz Napierala rctl_enforce(child, RACCT_NTHR, 0); 92772a401d9SEdward Tomasz Napierala mtx_unlock(&racct_lock); 92872a401d9SEdward Tomasz Napierala #endif 92972a401d9SEdward Tomasz Napierala } 93072a401d9SEdward Tomasz Napierala 931097055e2SEdward Tomasz Napierala void 932097055e2SEdward Tomasz Napierala racct_proc_exit(struct proc *p) 933097055e2SEdward Tomasz Napierala { 9342419d7f9SEdward Tomasz Napierala int i; 935097055e2SEdward Tomasz Napierala uint64_t runtime; 93636af9869SEdward Tomasz Napierala struct timeval wallclock; 93736af9869SEdward Tomasz Napierala uint64_t pct_estimate, pct; 938097055e2SEdward Tomasz Napierala 9394b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 9404b5c9cf6SEdward Tomasz Napierala return; 9414b5c9cf6SEdward Tomasz Napierala 942097055e2SEdward Tomasz Napierala PROC_LOCK(p); 943097055e2SEdward Tomasz Napierala /* 944097055e2SEdward Tomasz Napierala * We don't need to calculate rux, proc_reap() has already done this. 945097055e2SEdward Tomasz Napierala */ 946097055e2SEdward Tomasz Napierala runtime = cputick2usec(p->p_rux.rux_runtime); 947097055e2SEdward Tomasz Napierala #ifdef notyet 948097055e2SEdward Tomasz Napierala KASSERT(runtime >= p->p_prev_runtime, ("runtime < p_prev_runtime")); 949097055e2SEdward Tomasz Napierala #else 950097055e2SEdward Tomasz Napierala if (runtime < p->p_prev_runtime) 951097055e2SEdward Tomasz Napierala runtime = p->p_prev_runtime; 952097055e2SEdward Tomasz Napierala #endif 95336af9869SEdward Tomasz Napierala microuptime(&wallclock); 95436af9869SEdward Tomasz Napierala timevalsub(&wallclock, &p->p_stats->p_start); 95584590fd8SEdward Tomasz Napierala if (wallclock.tv_sec > 0 || wallclock.tv_usec > 0) { 95636af9869SEdward Tomasz Napierala pct_estimate = (1000000 * runtime * 100) / 95736af9869SEdward Tomasz Napierala ((uint64_t)wallclock.tv_sec * 1000000 + 95836af9869SEdward Tomasz Napierala wallclock.tv_usec); 95984590fd8SEdward Tomasz Napierala } else 96084590fd8SEdward Tomasz Napierala pct_estimate = 0; 96136af9869SEdward Tomasz Napierala pct = racct_getpcpu(p, pct_estimate); 96236af9869SEdward Tomasz Napierala 9632419d7f9SEdward Tomasz Napierala mtx_lock(&racct_lock); 96410287198SEdward Tomasz Napierala racct_set_locked(p, RACCT_CPU, runtime, 0); 96536af9869SEdward Tomasz Napierala racct_add_cred_locked(p->p_ucred, RACCT_PCTCPU, pct); 966097055e2SEdward Tomasz Napierala 9672419d7f9SEdward Tomasz Napierala for (i = 0; i <= RACCT_MAX; i++) { 9682419d7f9SEdward Tomasz Napierala if (p->p_racct->r_resources[i] == 0) 9692419d7f9SEdward Tomasz Napierala continue; 9702419d7f9SEdward Tomasz Napierala if (!RACCT_IS_RECLAIMABLE(i)) 9712419d7f9SEdward Tomasz Napierala continue; 97210287198SEdward Tomasz Napierala racct_set_locked(p, i, 0, 0); 9732419d7f9SEdward Tomasz Napierala } 9742419d7f9SEdward Tomasz Napierala 9752419d7f9SEdward Tomasz Napierala mtx_unlock(&racct_lock); 976097055e2SEdward Tomasz Napierala PROC_UNLOCK(p); 977097055e2SEdward Tomasz Napierala 978097055e2SEdward Tomasz Napierala #ifdef RCTL 979097055e2SEdward Tomasz Napierala rctl_racct_release(p->p_racct); 980097055e2SEdward Tomasz Napierala #endif 981097055e2SEdward Tomasz Napierala racct_destroy(&p->p_racct); 982097055e2SEdward Tomasz Napierala } 983097055e2SEdward Tomasz Napierala 984097055e2SEdward Tomasz Napierala /* 985097055e2SEdward Tomasz Napierala * Called after credentials change, to move resource utilisation 986097055e2SEdward Tomasz Napierala * between raccts. 987097055e2SEdward Tomasz Napierala */ 988097055e2SEdward Tomasz Napierala void 989097055e2SEdward Tomasz Napierala racct_proc_ucred_changed(struct proc *p, struct ucred *oldcred, 990097055e2SEdward Tomasz Napierala struct ucred *newcred) 991097055e2SEdward Tomasz Napierala { 992097055e2SEdward Tomasz Napierala struct uidinfo *olduip, *newuip; 993097055e2SEdward Tomasz Napierala struct loginclass *oldlc, *newlc; 994097055e2SEdward Tomasz Napierala struct prison *oldpr, *newpr, *pr; 995097055e2SEdward Tomasz Napierala 9964b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 9974b5c9cf6SEdward Tomasz Napierala return; 9984b5c9cf6SEdward Tomasz Napierala 999097055e2SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_NOTOWNED); 1000097055e2SEdward Tomasz Napierala 1001097055e2SEdward Tomasz Napierala newuip = newcred->cr_ruidinfo; 1002097055e2SEdward Tomasz Napierala olduip = oldcred->cr_ruidinfo; 1003097055e2SEdward Tomasz Napierala newlc = newcred->cr_loginclass; 1004097055e2SEdward Tomasz Napierala oldlc = oldcred->cr_loginclass; 1005097055e2SEdward Tomasz Napierala newpr = newcred->cr_prison; 1006097055e2SEdward Tomasz Napierala oldpr = oldcred->cr_prison; 1007097055e2SEdward Tomasz Napierala 1008097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 1009097055e2SEdward Tomasz Napierala if (newuip != olduip) { 1010097055e2SEdward Tomasz Napierala racct_sub_racct(olduip->ui_racct, p->p_racct); 1011097055e2SEdward Tomasz Napierala racct_add_racct(newuip->ui_racct, p->p_racct); 1012097055e2SEdward Tomasz Napierala } 1013097055e2SEdward Tomasz Napierala if (newlc != oldlc) { 1014097055e2SEdward Tomasz Napierala racct_sub_racct(oldlc->lc_racct, p->p_racct); 1015097055e2SEdward Tomasz Napierala racct_add_racct(newlc->lc_racct, p->p_racct); 1016097055e2SEdward Tomasz Napierala } 1017097055e2SEdward Tomasz Napierala if (newpr != oldpr) { 1018097055e2SEdward Tomasz Napierala for (pr = oldpr; pr != NULL; pr = pr->pr_parent) 1019a7ad07bfSEdward Tomasz Napierala racct_sub_racct(pr->pr_prison_racct->prr_racct, 1020a7ad07bfSEdward Tomasz Napierala p->p_racct); 1021097055e2SEdward Tomasz Napierala for (pr = newpr; pr != NULL; pr = pr->pr_parent) 1022a7ad07bfSEdward Tomasz Napierala racct_add_racct(pr->pr_prison_racct->prr_racct, 1023a7ad07bfSEdward Tomasz Napierala p->p_racct); 1024097055e2SEdward Tomasz Napierala } 1025097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 1026097055e2SEdward Tomasz Napierala 1027097055e2SEdward Tomasz Napierala #ifdef RCTL 1028097055e2SEdward Tomasz Napierala rctl_proc_ucred_changed(p, newcred); 1029097055e2SEdward Tomasz Napierala #endif 1030097055e2SEdward Tomasz Napierala } 1031097055e2SEdward Tomasz Napierala 1032c34bbd2aSEdward Tomasz Napierala void 1033c34bbd2aSEdward Tomasz Napierala racct_move(struct racct *dest, struct racct *src) 1034c34bbd2aSEdward Tomasz Napierala { 1035c34bbd2aSEdward Tomasz Napierala 10364b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 10374b5c9cf6SEdward Tomasz Napierala 1038c34bbd2aSEdward Tomasz Napierala mtx_lock(&racct_lock); 1039c34bbd2aSEdward Tomasz Napierala 1040c34bbd2aSEdward Tomasz Napierala racct_add_racct(dest, src); 1041c34bbd2aSEdward Tomasz Napierala racct_sub_racct(src, src); 1042c34bbd2aSEdward Tomasz Napierala 1043c34bbd2aSEdward Tomasz Napierala mtx_unlock(&racct_lock); 1044c34bbd2aSEdward Tomasz Napierala } 1045c34bbd2aSEdward Tomasz Napierala 1046097055e2SEdward Tomasz Napierala static void 104736af9869SEdward Tomasz Napierala racct_proc_throttle(struct proc *p) 104836af9869SEdward Tomasz Napierala { 104936af9869SEdward Tomasz Napierala struct thread *td; 105036af9869SEdward Tomasz Napierala #ifdef SMP 105136af9869SEdward Tomasz Napierala int cpuid; 105236af9869SEdward Tomasz Napierala #endif 105336af9869SEdward Tomasz Napierala 10544b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 105536af9869SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 105636af9869SEdward Tomasz Napierala 105736af9869SEdward Tomasz Napierala /* 105836af9869SEdward Tomasz Napierala * Do not block kernel processes. Also do not block processes with 105936af9869SEdward Tomasz Napierala * low %cpu utilization to improve interactivity. 106036af9869SEdward Tomasz Napierala */ 1061db57c70aSKonstantin Belousov if (((p->p_flag & (P_SYSTEM | P_KPROC)) != 0) || 106236af9869SEdward Tomasz Napierala (p->p_racct->r_resources[RACCT_PCTCPU] <= pcpu_threshold)) 106336af9869SEdward Tomasz Napierala return; 106436af9869SEdward Tomasz Napierala p->p_throttled = 1; 106536af9869SEdward Tomasz Napierala 106636af9869SEdward Tomasz Napierala FOREACH_THREAD_IN_PROC(p, td) { 106716befafdSEdward Tomasz Napierala thread_lock(td); 106836af9869SEdward Tomasz Napierala switch (td->td_state) { 106936af9869SEdward Tomasz Napierala case TDS_RUNQ: 107036af9869SEdward Tomasz Napierala /* 107136af9869SEdward Tomasz Napierala * If the thread is on the scheduler run-queue, we can 107236af9869SEdward Tomasz Napierala * not just remove it from there. So we set the flag 107336af9869SEdward Tomasz Napierala * TDF_NEEDRESCHED for the thread, so that once it is 107436af9869SEdward Tomasz Napierala * running, it is taken off the cpu as soon as possible. 107536af9869SEdward Tomasz Napierala */ 107636af9869SEdward Tomasz Napierala td->td_flags |= TDF_NEEDRESCHED; 107736af9869SEdward Tomasz Napierala break; 107836af9869SEdward Tomasz Napierala case TDS_RUNNING: 107936af9869SEdward Tomasz Napierala /* 108036af9869SEdward Tomasz Napierala * If the thread is running, we request a context 108136af9869SEdward Tomasz Napierala * switch for it by setting the TDF_NEEDRESCHED flag. 108236af9869SEdward Tomasz Napierala */ 108336af9869SEdward Tomasz Napierala td->td_flags |= TDF_NEEDRESCHED; 108436af9869SEdward Tomasz Napierala #ifdef SMP 108536af9869SEdward Tomasz Napierala cpuid = td->td_oncpu; 108636af9869SEdward Tomasz Napierala if ((cpuid != NOCPU) && (td != curthread)) 108736af9869SEdward Tomasz Napierala ipi_cpu(cpuid, IPI_AST); 108836af9869SEdward Tomasz Napierala #endif 108936af9869SEdward Tomasz Napierala break; 109036af9869SEdward Tomasz Napierala default: 109136af9869SEdward Tomasz Napierala break; 109236af9869SEdward Tomasz Napierala } 109316befafdSEdward Tomasz Napierala thread_unlock(td); 109436af9869SEdward Tomasz Napierala } 109536af9869SEdward Tomasz Napierala } 109636af9869SEdward Tomasz Napierala 109736af9869SEdward Tomasz Napierala static void 109836af9869SEdward Tomasz Napierala racct_proc_wakeup(struct proc *p) 109936af9869SEdward Tomasz Napierala { 11004b5c9cf6SEdward Tomasz Napierala 11014b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 11024b5c9cf6SEdward Tomasz Napierala 110336af9869SEdward Tomasz Napierala PROC_LOCK_ASSERT(p, MA_OWNED); 110436af9869SEdward Tomasz Napierala 110536af9869SEdward Tomasz Napierala if (p->p_throttled) { 110636af9869SEdward Tomasz Napierala p->p_throttled = 0; 110736af9869SEdward Tomasz Napierala wakeup(p->p_racct); 110836af9869SEdward Tomasz Napierala } 110936af9869SEdward Tomasz Napierala } 111036af9869SEdward Tomasz Napierala 111136af9869SEdward Tomasz Napierala static void 111236af9869SEdward Tomasz Napierala racct_decay_resource(struct racct *racct, void * res, void* dummy) 111336af9869SEdward Tomasz Napierala { 111436af9869SEdward Tomasz Napierala int resource; 111536af9869SEdward Tomasz Napierala int64_t r_old, r_new; 111636af9869SEdward Tomasz Napierala 11174b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 111815db3c07SEdward Tomasz Napierala mtx_assert(&racct_lock, MA_OWNED); 11194b5c9cf6SEdward Tomasz Napierala 112036af9869SEdward Tomasz Napierala resource = *(int *)res; 112136af9869SEdward Tomasz Napierala r_old = racct->r_resources[resource]; 112236af9869SEdward Tomasz Napierala 112336af9869SEdward Tomasz Napierala /* If there is nothing to decay, just exit. */ 112436af9869SEdward Tomasz Napierala if (r_old <= 0) 112536af9869SEdward Tomasz Napierala return; 112636af9869SEdward Tomasz Napierala 112736af9869SEdward Tomasz Napierala r_new = r_old * RACCT_DECAY_FACTOR / FSCALE; 112836af9869SEdward Tomasz Napierala racct->r_resources[resource] = r_new; 112915db3c07SEdward Tomasz Napierala } 113015db3c07SEdward Tomasz Napierala 113115db3c07SEdward Tomasz Napierala static void 113215db3c07SEdward Tomasz Napierala racct_decay_pre(void) 113315db3c07SEdward Tomasz Napierala { 113415db3c07SEdward Tomasz Napierala 113515db3c07SEdward Tomasz Napierala mtx_lock(&racct_lock); 113615db3c07SEdward Tomasz Napierala } 113715db3c07SEdward Tomasz Napierala 113815db3c07SEdward Tomasz Napierala static void 113915db3c07SEdward Tomasz Napierala racct_decay_post(void) 114015db3c07SEdward Tomasz Napierala { 114115db3c07SEdward Tomasz Napierala 114236af9869SEdward Tomasz Napierala mtx_unlock(&racct_lock); 114336af9869SEdward Tomasz Napierala } 114436af9869SEdward Tomasz Napierala 114536af9869SEdward Tomasz Napierala static void 114636af9869SEdward Tomasz Napierala racct_decay(int resource) 114736af9869SEdward Tomasz Napierala { 11484b5c9cf6SEdward Tomasz Napierala 11494b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 11504b5c9cf6SEdward Tomasz Napierala 115115db3c07SEdward Tomasz Napierala ui_racct_foreach(racct_decay_resource, racct_decay_pre, 115215db3c07SEdward Tomasz Napierala racct_decay_post, &resource, NULL); 115315db3c07SEdward Tomasz Napierala loginclass_racct_foreach(racct_decay_resource, racct_decay_pre, 115415db3c07SEdward Tomasz Napierala racct_decay_post, &resource, NULL); 115515db3c07SEdward Tomasz Napierala prison_racct_foreach(racct_decay_resource, racct_decay_pre, 115615db3c07SEdward Tomasz Napierala racct_decay_post, &resource, NULL); 115736af9869SEdward Tomasz Napierala } 115836af9869SEdward Tomasz Napierala 115936af9869SEdward Tomasz Napierala static void 1160097055e2SEdward Tomasz Napierala racctd(void) 1161097055e2SEdward Tomasz Napierala { 1162097055e2SEdward Tomasz Napierala struct thread *td; 1163097055e2SEdward Tomasz Napierala struct proc *p; 1164097055e2SEdward Tomasz Napierala struct timeval wallclock; 1165097055e2SEdward Tomasz Napierala uint64_t runtime; 116636af9869SEdward Tomasz Napierala uint64_t pct, pct_estimate; 1167097055e2SEdward Tomasz Napierala 11684b5c9cf6SEdward Tomasz Napierala ASSERT_RACCT_ENABLED(); 11694b5c9cf6SEdward Tomasz Napierala 1170097055e2SEdward Tomasz Napierala for (;;) { 117136af9869SEdward Tomasz Napierala racct_decay(RACCT_PCTCPU); 117236af9869SEdward Tomasz Napierala 1173097055e2SEdward Tomasz Napierala sx_slock(&allproc_lock); 1174097055e2SEdward Tomasz Napierala 117536af9869SEdward Tomasz Napierala LIST_FOREACH(p, &zombproc, p_list) { 117636af9869SEdward Tomasz Napierala PROC_LOCK(p); 117736af9869SEdward Tomasz Napierala racct_set(p, RACCT_PCTCPU, 0); 117836af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 117936af9869SEdward Tomasz Napierala } 118036af9869SEdward Tomasz Napierala 1181097055e2SEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 118236af9869SEdward Tomasz Napierala PROC_LOCK(p); 118336af9869SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) { 118436af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 1185097055e2SEdward Tomasz Napierala continue; 118636af9869SEdward Tomasz Napierala } 1187097055e2SEdward Tomasz Napierala 1188097055e2SEdward Tomasz Napierala microuptime(&wallclock); 1189097055e2SEdward Tomasz Napierala timevalsub(&wallclock, &p->p_stats->p_start); 11905c7bebf9SKonstantin Belousov PROC_STATLOCK(p); 11910a53cd57SEdward Tomasz Napierala FOREACH_THREAD_IN_PROC(p, td) 1192097055e2SEdward Tomasz Napierala ruxagg(p, td); 1193097055e2SEdward Tomasz Napierala runtime = cputick2usec(p->p_rux.rux_runtime); 11945c7bebf9SKonstantin Belousov PROC_STATUNLOCK(p); 1195097055e2SEdward Tomasz Napierala #ifdef notyet 1196097055e2SEdward Tomasz Napierala KASSERT(runtime >= p->p_prev_runtime, 1197097055e2SEdward Tomasz Napierala ("runtime < p_prev_runtime")); 1198097055e2SEdward Tomasz Napierala #else 1199097055e2SEdward Tomasz Napierala if (runtime < p->p_prev_runtime) 1200097055e2SEdward Tomasz Napierala runtime = p->p_prev_runtime; 1201097055e2SEdward Tomasz Napierala #endif 1202097055e2SEdward Tomasz Napierala p->p_prev_runtime = runtime; 120384590fd8SEdward Tomasz Napierala if (wallclock.tv_sec > 0 || wallclock.tv_usec > 0) { 120436af9869SEdward Tomasz Napierala pct_estimate = (1000000 * runtime * 100) / 120536af9869SEdward Tomasz Napierala ((uint64_t)wallclock.tv_sec * 1000000 + 120636af9869SEdward Tomasz Napierala wallclock.tv_usec); 120784590fd8SEdward Tomasz Napierala } else 120884590fd8SEdward Tomasz Napierala pct_estimate = 0; 120936af9869SEdward Tomasz Napierala pct = racct_getpcpu(p, pct_estimate); 1210097055e2SEdward Tomasz Napierala mtx_lock(&racct_lock); 121110287198SEdward Tomasz Napierala racct_set_locked(p, RACCT_PCTCPU, pct, 1); 121210287198SEdward Tomasz Napierala racct_set_locked(p, RACCT_CPU, runtime, 0); 1213097055e2SEdward Tomasz Napierala racct_set_locked(p, RACCT_WALLCLOCK, 121459f513cdSJaakko Heinonen (uint64_t)wallclock.tv_sec * 1000000 + 121510287198SEdward Tomasz Napierala wallclock.tv_usec, 0); 1216097055e2SEdward Tomasz Napierala mtx_unlock(&racct_lock); 1217097055e2SEdward Tomasz Napierala PROC_UNLOCK(p); 1218097055e2SEdward Tomasz Napierala } 121936af9869SEdward Tomasz Napierala 122036af9869SEdward Tomasz Napierala /* 122136af9869SEdward Tomasz Napierala * To ensure that processes are throttled in a fair way, we need 122236af9869SEdward Tomasz Napierala * to iterate over all processes again and check the limits 122336af9869SEdward Tomasz Napierala * for %cpu resource only after ucred racct containers have been 122436af9869SEdward Tomasz Napierala * properly filled. 122536af9869SEdward Tomasz Napierala */ 122636af9869SEdward Tomasz Napierala FOREACH_PROC_IN_SYSTEM(p) { 122736af9869SEdward Tomasz Napierala PROC_LOCK(p); 122836af9869SEdward Tomasz Napierala if (p->p_state != PRS_NORMAL) { 122936af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 123036af9869SEdward Tomasz Napierala continue; 123136af9869SEdward Tomasz Napierala } 123236af9869SEdward Tomasz Napierala 123336af9869SEdward Tomasz Napierala if (racct_pcpu_available(p) <= 0) 123436af9869SEdward Tomasz Napierala racct_proc_throttle(p); 123536af9869SEdward Tomasz Napierala else if (p->p_throttled) 123636af9869SEdward Tomasz Napierala racct_proc_wakeup(p); 123736af9869SEdward Tomasz Napierala PROC_UNLOCK(p); 123836af9869SEdward Tomasz Napierala } 1239097055e2SEdward Tomasz Napierala sx_sunlock(&allproc_lock); 1240097055e2SEdward Tomasz Napierala pause("-", hz); 1241097055e2SEdward Tomasz Napierala } 1242097055e2SEdward Tomasz Napierala } 1243097055e2SEdward Tomasz Napierala 1244097055e2SEdward Tomasz Napierala static struct kproc_desc racctd_kp = { 1245097055e2SEdward Tomasz Napierala "racctd", 1246097055e2SEdward Tomasz Napierala racctd, 1247097055e2SEdward Tomasz Napierala NULL 1248097055e2SEdward Tomasz Napierala }; 12494b5c9cf6SEdward Tomasz Napierala 12504b5c9cf6SEdward Tomasz Napierala static void 12514b5c9cf6SEdward Tomasz Napierala racctd_init(void) 12524b5c9cf6SEdward Tomasz Napierala { 12534b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 12544b5c9cf6SEdward Tomasz Napierala return; 12554b5c9cf6SEdward Tomasz Napierala 12564b5c9cf6SEdward Tomasz Napierala kproc_start(&racctd_kp); 12574b5c9cf6SEdward Tomasz Napierala } 12584b5c9cf6SEdward Tomasz Napierala SYSINIT(racctd, SI_SUB_RACCTD, SI_ORDER_FIRST, racctd_init, NULL); 1259097055e2SEdward Tomasz Napierala 1260097055e2SEdward Tomasz Napierala static void 1261097055e2SEdward Tomasz Napierala racct_init(void) 1262097055e2SEdward Tomasz Napierala { 12634b5c9cf6SEdward Tomasz Napierala if (!racct_enable) 12644b5c9cf6SEdward Tomasz Napierala return; 1265097055e2SEdward Tomasz Napierala 1266097055e2SEdward Tomasz Napierala racct_zone = uma_zcreate("racct", sizeof(struct racct), 1267097055e2SEdward Tomasz Napierala NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 1268097055e2SEdward Tomasz Napierala /* 1269097055e2SEdward Tomasz Napierala * XXX: Move this somewhere. 1270097055e2SEdward Tomasz Napierala */ 1271a7ad07bfSEdward Tomasz Napierala prison0.pr_prison_racct = prison_racct_find("0"); 1272097055e2SEdward Tomasz Napierala } 1273097055e2SEdward Tomasz Napierala SYSINIT(racct, SI_SUB_RACCT, SI_ORDER_FIRST, racct_init, NULL); 1274097055e2SEdward Tomasz Napierala 1275097055e2SEdward Tomasz Napierala #endif /* !RACCT */ 1276