Lines Matching +full:temperature +full:- +full:tracking
1 .. SPDX-License-Identifier: GPL-2.0
24 1.1 Process-Specific Subdirectories
36 3 Per-Process Parameters
37 3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj - Adjust the oom-killer
39 3.2 /proc/<pid>/oom_score - Display current oom-killer score
40 3.3 /proc/<pid>/io - Display the IO accounting fields
41 3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
42 3.5 /proc/<pid>/mountinfo - Information about mounts
44 3.7 /proc/<pid>/task/<tid>/children - Information about task children
45 3.8 /proc/<pid>/fdinfo/<fd> - Information about opened file
46 3.9 /proc/<pid>/map_files - Information about memory mapped files
47 3.10 /proc/<pid>/timerslack_ns - Task timerslack value
48 3.11 /proc/<pid>/patch_state - Livepatch patch operation state
49 3.12 /proc/<pid>/arch_status - Task architecture specific information
50 3.13 /proc/<pid>/fd - List of symlinks to open files
51 3.14 /proc/<pid/ksm_stat - Information about the process's ksm status.
62 ------------------------
75 ---------------
85 ---------------
92 ------------------------------------------------------------------------------
98 First, we'll take a look at the read-only parts of /proc. In Chapter 2, we
101 1.1 Process-Specific Subdirectories
102 -----------------------------------
108 subdirectory has the entries listed in Table 1-1.
114 capability. This applies to all read-only information like `maps`, `environ`,
115 `pagemap`, etc. The only exception is `mem` file due to its read-write nature,
128 .. table:: Table 1-1: Process specific entries in /proc
147 symbol the task is blocked in - or "0" if not blocked.
212 file /proc/PID/status. It fields are described in table 1-2.
215 memory usage. Its seven fields are explained in Table 1-3. The stat file
217 explained in Table 1-4.
226 .. table:: Table 1-2: Contents of the status fields (as of 4.19)
301 .. table:: Table 1-3: Contents of the statm fields (as of 2.6.8-rc3)
319 .. table:: Table 1-4: Contents of the stat fields (as of 2.6.30-rc7)
388 08048000-08049000 r-xp 00000000 03:00 8312 /opt/test
389 08049000-0804a000 rw-p 00001000 03:00 8312 /opt/test
390 0804a000-0806b000 rw-p 00000000 00:00 0 [heap]
391 a7cb1000-a7cb2000 ---p 00000000 00:00 0
392 a7cb2000-a7eb2000 rw-p 00000000 00:00 0
393 a7eb2000-a7eb3000 ---p 00000000 00:00 0
394 a7eb3000-a7ed5000 rw-p 00000000 00:00 0
395 a7ed5000-a8008000 r-xp 00000000 03:00 4222 /lib/libc.so.6
396 a8008000-a800a000 r--p 00133000 03:00 4222 /lib/libc.so.6
397 a800a000-a800b000 rw-p 00135000 03:00 4222 /lib/libc.so.6
398 a800b000-a800e000 rw-p 00000000 00:00 0
399 a800e000-a8022000 r-xp 00000000 03:00 14462 /lib/libpthread.so.0
400 a8022000-a8023000 r--p 00013000 03:00 14462 /lib/libpthread.so.0
401 a8023000-a8024000 rw-p 00014000 03:00 14462 /lib/libpthread.so.0
402 a8024000-a8027000 rw-p 00000000 00:00 0
403 a8027000-a8043000 r-xp 00000000 03:00 8317 /lib/ld-linux.so.2
404 a8043000-a8044000 r--p 0001b000 03:00 8317 /lib/ld-linux.so.2
405 a8044000-a8045000 rw-p 0001c000 03:00 8317 /lib/ld-linux.so.2
406 aff35000-aff4a000 rw-p 00000000 00:00 0 [stack]
407 ffffe000-fffff000 r-xp 00000000 00:00 0 [vdso]
438 ioctl()-based API that gives ability to flexibly and efficiently query and
450 08048000-080bc000 r-xp 00000000 03:02 13130 /bin/bash
522 "KSM" reports how many of the pages are KSM pages. Note that KSM-placed zeropages
540 "Swap" shows how much would-be-anonymous memory is also used, but out on swap.
543 replaced by copy-on-write) part of the underlying shmem object out on swap.
587 um userfaultfd missing tracking
588 uw userfaultfd wr-protect tracking
599 be vanished or the reverse -- new added. Interpretation of their meaning
622 - Pss_Anon
623 - Pss_File
624 - Pss_Shmem
634 soft-dirty bit on pte (see Documentation/admin-guide/mm/soft-dirty.rst
648 To clear the soft-dirty bit::
662 Documentation/admin-guide/mm/pagemap.rst.
673 3206000000 default file=/lib64/ld-2.12.so mapped=26 mapmax=6 N0=24 N3=2 kernelpagesize_kB=4
674 320621f000 default file=/lib64/ld-2.12.so anon=1 dirty=1 N3=1 kernelpagesize_kB=4
675 3206220000 default file=/lib64/ld-2.12.so anon=1 dirty=1 N3=1 kernelpagesize_kB=4
677 …3206800000 default file=/lib64/libc-2.12.so mapped=59 mapmax=21 active=55 N0=41 N3=18 kernelpagesi…
678 320698b000 default file=/lib64/libc-2.12.so
679 3206b8a000 default file=/lib64/libc-2.12.so anon=2 dirty=2 N3=2 kernelpagesize_kB=4
680 3206b8e000 default file=/lib64/libc-2.12.so anon=1 dirty=1 N3=1 kernelpagesize_kB=4
692 "policy" reports the NUMA memory policy set for the mapping (see Documentation/admin-guide/mm/numa_…
704 ---------------
708 /proc and are listed in Table 1-5. Not all of these will be present in your
712 .. table:: Table 1-5: Kernel info in /proc
761 pci Deprecated info of PCI bus (new way -> /proc/bus/pci/,
783 0: 8728810 XT-PIC timer
784 1: 895 XT-PIC keyboard
785 2: 0 XT-PIC cascade
786 3: 531695 XT-PIC aha152x
787 4: 2014133 XT-PIC serial
788 5: 44401 XT-PIC pcnet_cs
789 8: 2 XT-PIC rtc
790 11: 8 XT-PIC i82365
791 12: 182918 XT-PIC PS/2 Mouse
792 13: 1 XT-PIC fpu
793 14: 1232265 XT-PIC ide0
794 15: 7 XT-PIC ide1
803 0: 1243498 1214548 IO-APIC-edge timer
804 1: 8949 8958 IO-APIC-edge keyboard
805 2: 0 0 XT-PIC cascade
806 5: 11286 10161 IO-APIC-edge soundblaster
807 8: 1 0 IO-APIC-edge rtc
808 9: 27422 27407 IO-APIC-edge 3c503
809 12: 113645 113873 IO-APIC-edge PS/2 Mouse
810 13: 0 0 XT-PIC fpu
811 14: 22491 24012 IO-APIC-edge ide0
812 15: 2183 2415 IO-APIC-edge ide1
813 17: 30564 30414 IO-APIC-level eth0
814 18: 177 164 IO-APIC-level bttv
824 ERR is incremented in the case of errors in the IO-APIC bus (the bus that
826 the IO-APIC automatically retry the transmission, so it should not be a big
827 problem, but you should read the SMP-FAQ.
839 a thermal event interrupt occurs when a temperature threshold
841 when the temperature drops back to normal.
892 1024-1031
894 The default_smp_affinity mask applies to all non-active IRQs, which are the
896 /proc/irq/[0-9]* directory.
905 The way IRQs are routed is handled by the IO-APIC, and it's Round Robin
908 best choice for almost everyone. [Note this applies only to those IO-APIC's
966 X86-64. By keeping pages grouped based on their ability to move, the kernel
967 can reclaim pages within a page block to satisfy a high-order allocation.
971 by migrate-type and finishes with details on how many page blocks of each
1010 > tail -n +3 /proc/allocinfo | sort -rn
1015 13377536 234 block/blk-mq.c:3421 func:blk_mq_alloc_rqs
1120 In-memory cache for files read from the disk (the
1164 Non-file backed pages mapped into userspace page tables. Note that
1180 in-kernel data structures cache
1210 CommitLimit = ([total RAM pages] - [total huge TLB pages]) *
1218 in mm/overcommit-accounting.
1253 Non-file backed huge pages mapped into userspace page tables
1273 See Documentation/admin-guide/mm/hugetlbpage.rst.
1301 0xffffc20000000000-0xffffc20000201000 2101248 alloc_large_system_hash+0x204 ...
1303 0xffffc20000201000-0xffffc20000302000 1052672 alloc_large_system_hash+0x204 ...
1305 0xffffc20000302000-0xffffc20000304000 8192 acpi_tb_verify_table+0x21/0x4f...
1307 0xffffc20000304000-0xffffc20000307000 12288 acpi_tb_verify_table+0x21/0x4f...
1309 0xffffc2000031d000-0xffffc2000031f000 8192 init_vdso_vars+0x112/0x210
1310 0xffffc2000031f000-0xffffc2000032b000 49152 cramfs_uncompress_init+0x2e ...
1312 0xffffc2000033a000-0xffffc2000033d000 12288 sys_swapon+0x640/0xac0 ...
1314 0xffffc20000347000-0xffffc2000034c000 20480 xt_alloc_table_info+0xfe ...
1316 0xffffffffa0000000-0xffffffffa000f000 61440 sys_init_module+0xc27/0x1d00 ...
1318 0xffffffffa000f000-0xffffffffa0014000 20480 sys_init_module+0xc27/0x1d00 ...
1320 0xffffffffa0014000-0xffffffffa0017000 12288 sys_init_module+0xc27/0x1d00 ...
1322 0xffffffffa0017000-0xffffffffa0022000 45056 sys_init_module+0xc27/0x1d00 ...
1346 --------------------------------
1348 The subdirectory /proc/net follows the usual pattern. Table 1-8 shows the
1350 support this. Table 1-9 lists the files and their meaning.
1353 .. table:: Table 1-8: IPv6 info in /proc/net
1369 .. table:: Table 1-9: Network info in /proc/net
1391 softnet_stat Per-CPU incoming packets queues statistics of online CPUs
1407 Inter-|Receive |[...
1426 -------------
1436 Type: Direct-Access ANSI SCSI revision: 03
1438 Vendor: PIONEER Model: CD-ROM DR-U06S Rev: 1.04
1439 Type: CD-ROM ANSI SCSI revision: 02
1446 AHA-2940 SCSI adapter::
1456 SCSI Adapter: Adaptec AHA-294X Ultra SCSI host adapter
1489 ---------------------------------------
1495 These directories contain the four files shown in Table 1-10.
1498 .. table:: Table 1-10: Files in /proc/parport
1503 autoprobe Any IEEE-1284 device ID information that has been acquired.
1514 -------------------------
1518 this directory, as shown in Table 1-11.
1521 .. table:: Table 1-11: Files in /proc/tty
1535 pty_slave /dev/pts 136 0-255 pty:slave
1536 pty_master /dev/ptm 128 0-255 pty:master
1537 pty_slave /dev/ttyp 3 0-255 pty:slave
1538 pty_master /dev/pty 2 0-255 pty:master
1539 serial /dev/cua 5 64-67 serial:callout
1540 serial /dev/ttyS 4 64-67 serial
1545 unknown /dev/tty 4 1-63 console
1549 -------------------------------------------------
1574 - user: normal processes executing in user mode
1575 - nice: niced processes executing in user mode
1576 - system: processes executing in kernel mode
1577 - idle: twiddling thumbs
1578 - iowait: In a word, iowait stands for waiting for I/O to complete. But there
1584 2. In a multi-core CPU, the task waiting for I/O to complete is not running
1590 - irq: servicing interrupts
1591 - softirq: servicing softirqs
1592 - steal: involuntary wait
1593 - guest: running a normal guest
1594 - guest_nice: running a niced guest
1624 -------------------------------
1629 /proc/fs/ext4/sda9 or /proc/fs/ext4/dm-0). The files in each per-device
1630 directory are shown in Table 1-12, below.
1632 .. table:: Table 1-12: Files in /proc/fs/ext4/<devname>
1640 -------------------
1647 tty0 -WU (ECp) 4:7
1648 ttyS0 -W- (Ep) 4:64
1652 +--------------------+-------------------------------------------------------+
1658 +--------------------+-------------------------------------------------------+
1665 +--------------------+-------------------------------------------------------+
1668 +--------------------+-------------------------------------------------------+
1671 -------
1684 ---------------
1690 ------------------------------------------------------------------------------
1714 Please see: Documentation/admin-guide/sysctl/ directory for descriptions of
1718 -------
1727 Chapter 3: Per-process Parameters
1730 3.1 /proc/<pid>/oom_adj & /proc/<pid>/oom_score_adj- Adjust the oom-killer score
1731 --------------------------------------------------------------------------------
1753 is used to determine which task to kill. Acceptable values range from -1000
1756 task or completely disabling it. The lowest possible value, -1000, is
1764 50% more memory. A value of -500, on the other hand, would be roughly
1769 be used to tune the badness score. Its acceptable values range from -16
1770 (OOM_ADJUST_MIN) to +15 (OOM_ADJUST_MAX) and a special value of -17
1779 3.2 /proc/<pid>/oom_score - Display current oom-killer score
1780 -------------------------------------------------------------
1782 This file can be used to check the current score used by the oom-killer for
1784 process should be killed in an out-of-memory situation.
1790 3.3 /proc/<pid>/io - Display the IO accounting fields
1791 -------------------------------------------------------
1857 accurate for block-backed filesystems. <please add status regarding NFS and
1866 the storage layer. This is done at page-dirtying time.
1885 At its current implementation state, this is a bit racy on 32-bit machines:
1887 of those 64-bit counters, process A could see an intermediate result.
1893 3.4 /proc/<pid>/coredump_filter - Core dump filtering settings
1894 ---------------------------------------------------------------
1898 Conversely, sometimes we want to save file-backed memory segments into a core
1908 - (bit 0) anonymous private memory
1909 - (bit 1) anonymous shared memory
1910 - (bit 2) file-backed private memory
1911 - (bit 3) file-backed shared memory
1912 - (bit 4) ELF header pages in file-backed private memory areas (it is
1914 - (bit 5) hugetlb private memory
1915 - (bit 6) hugetlb shared memory
1916 - (bit 7) DAX private memory
1917 - (bit 8) DAX shared memory
1922 Note that bits 0-4 don't affect hugetlb or DAX memory. hugetlb memory is
1923 only affected by bit 5-6, and DAX is only affected by bits 7-8.
1940 3.5 /proc/<pid>/mountinfo - Information about mounts
1941 --------------------------------------------------------
1945 36 35 98:0 /mnt1 /mnt2 rw,noatime master:1 - ext3 /dev/root rw,errors=continue
1981 --------------------------------------------------------
1989 3.7 /proc/<pid>/task/<tid>/children - Information about task children
1990 -------------------------------------------------------------------------
1995 Note the "first level" here -- if a child has its own children they will
1996 not be listed here; one needs to read /proc/<children-pid>/task/<tid>/children
2006 3.8 /proc/<pid>/fdinfo/<fd> - Information about opened file
2007 ---------------------------------------------------------------
2009 files have at least four fields -- 'pos', 'flags', 'mnt_id' and 'ino'.
2040 eventfd-count: 5a
2042 where 'eventfd-count' is hex value of a counter.
2085 …inotify wd:3 ino:9e7e sdev:800013 mask:800afce ignored_mask:0 fhandle-bytes:8 fhandle-type:1 f_han…
2094 fields 'fhandle-bytes', 'fhandle-type' and 'f_handle', all in hex
2108 fanotify flags:10 event-flags:0
2110 …fanotify ino:4f969 sdev:800013 mflags:0 mask:3b ignored_mask:40000000 fhandle-bytes:8 fhandle-type…
2112 where fanotify 'flags' and 'event-flags' are values used in fanotify_init
2158 exp_name: system-heap
2172 vfio-device-syspath: /sys/devices/pci0000:e0/0000:e0:01.1/0000:e1:00.0/0000:e2:05.0/0000:e8:00.0
2174 where 'vfio-device-syspath' is the sysfs path corresponding to the VFIO device
2177 3.9 /proc/<pid>/map_files - Information about memory mapped files
2178 ---------------------------------------------------------------------
2182 | lr-------- 1 root root 64 Jan 27 11:24 333c600000-333c620000 -> /usr/lib64/ld-2.18.so
2183 | lr-------- 1 root root 64 Jan 27 11:24 333c81f000-333c820000 -> /usr/lib64/ld-2.18.so
2184 | lr-------- 1 root root 64 Jan 27 11:24 333c820000-333c821000 -> /usr/lib64/ld-2.18.so
2186 | lr-------- 1 root root 64 Jan 27 11:24 35d0421000-35d0422000 -> /usr/lib64/libselinux.so.1
2187 | lr-------- 1 root root 64 Jan 27 11:24 400000-41a000 -> /usr/bin/ls
2190 vm_area_struct::vm_start-vm_area_struct::vm_end.
2199 3.10 /proc/<pid>/timerslack_ns - Task timerslack value
2200 ---------------------------------------------------------
2210 Valid values are from 0 - ULLONG_MAX
2215 3.11 /proc/<pid>/patch_state - Livepatch patch operation state
2216 -----------------------------------------------------------------
2220 A value of '-1' indicates that no patch is in transition.
2232 3.12 /proc/<pid>/arch_status - task architecture specific status
2233 -------------------------------------------------------------------
2273 A special value of '-1' indicates that no AVX512 usage was recorded, thus
2277 3.13 /proc/<pid>/fd - List of symlinks to open files
2278 -------------------------------------------------------
2282 lr-x------ 1 root root 64 Sep 20 17:53 0 -> /dev/null
2283 l-wx------ 1 root root 64 Sep 20 17:53 1 -> /dev/null
2284 lrwx------ 1 root root 64 Sep 20 17:53 10 -> 'socket:[12539]'
2285 lrwx------ 1 root root 64 Sep 20 17:53 11 -> 'socket:[12540]'
2286 lrwx------ 1 root root 64 Sep 20 17:53 12 -> 'socket:[12542]'
2290 -------------------------------------------------------
2292 3.14 /proc/<pid/ksm_stat - Information about the process's ksm status
2293 ---------------------------------------------------------------------
2318 addresses. KSM will generate a ksm_rmap_item for each ksm-scanned page of
2358 Documentation/admin-guide/mm/ksm.rst.
2365 ---------------------
2376 hidepid=off or hidepid=0 means classic mode - everybody may access all
2390 by "kill -0 $PID"), but it hides process's uid and gid, which may be learned by
2411 so will give an `-EBUSY` error).
2426 # strace -e mount mount -o hidepid=1 -t proc proc /tmp/proc
2437 # mount -o remount,hidepid=1 -t proc proc /tmp/proc
2450 # mount -o hidepid=invisible -t proc proc /proc
2451 # mount -o hidepid=noaccess -t proc proc /tmp/proc