Commit Graph

130 Commits

Author SHA1 Message Date
Mike Fleetwood
2bac5334b0 ps: display the nice value for processes with the SCHED_BATCH scheduler policy
Ps command does not display the nice value for processes with the SCHED_BATCH
scheduler policy, only for SCHED_OTHER.

Boinc (http://boinc.berkeley.edu/) client runs project processing jobs on
Linux using SCHED_BATCH scheduler policy and nice value 19.  The nice value
is not displayable by ps.

Steps to Reproduce:
1. Run process using SCHED_BATCH scheduler policy with nice value.
    ./test-schedbatch 18 &
2. Display process details:
    ps -o pid,ppid,user,comm,cls,nice

Results before:
[mike@rockover c]$ ps -o pid,ppid,user,comm,cls,nice
  PID  PPID USER     COMMAND         CLS  NI
18205  2540 mike     bash             TS   0
20552 18205 mike     test-schedbatch   B   -
20553 18205 mike     ps               TS   0
[mike@rockover c]$ awk '{printf "%5d %-17s %1d %2d\n", $1, $2, $41, $19}'
/proc/20552/stat
20552 (test-schedbatch) 3 18

Results after this patch:
[mike@rockover c]$ ps -o pid,ppid,user,comm,cls,nice
  PID  PPID USER     COMMAND         CLS  NI
18205  2540 mike     bash             TS   0
20552 18205 mike     test-schedbatch   B  18
20553 18205 mike     ps               TS   0

Additional info: Here is the fragment from the sched_setscheduler(2) manual
page on the subject:

   SCHED_BATCH: Scheduling batch processes
       (Since  Linux 2.6.16.)  SCHED_BATCH can only be used at static
       priority 0.  This policy is similar to SCHED_OTHER in that it
       schedules the process according to its dynamic priority (based on the
       nice value).  The difference is that this policy will cause the
       scheduler to always assume that the process is CPU-intensive.
       Consequently, the scheduler will apply a small scheduling penalty with
       respect to wakeup behaviour, so that this process is mildly disfavored
       in scheduling decisions.

       This policy is useful for workloads that are noninteractive, but do
       not want to lower their nice value, and for workloads that want a
       determin- istic scheduling policy without interactivity causing extra
       preemptions (between the workload's tasks).

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=741090
Acked-by: Jaromir Capik <jcapik@redhat.com>
Acked-by: Sami Kerola <kerolasa@iki.fi>
Signed-off-by: Mike Fleetwood <mike.fleetwood@googlemail.com>
2012-01-09 21:37:41 +01:00
Jim Warner
71b72b36ce ps: minor reformatting and trailing whitespace elimination
This patch mostly reorganizes include files and eliminates
some useless trailing whitespace.

It also adopts the standard procps-ng unconditional approach
to nls initialization.
2012-01-04 08:58:53 +11:00
Sami Kerola
c1fa3bfce8 misc: compiler warning fixes
Fix few compiler warnings. Some of these warnings appeared multiple
times, and the listing bellow is more about which sort of errors
where fixed.

devname.c:87:12: warning: comparison of integers of different signs: 'int' and 'unsigned long'
output.c:389:36: warning: passing 'char **const' to parameter of type 'const char *const restrict *' discards qualifiers in nested pointer types
output.c:611:31: warning: comparison of integers of different signs: 'const unsigned long' and 'int'
stacktrace.c:33:37: warning: unused parameter 'signum'

Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:50 +01:00
Sami Kerola
4bd36d1483 ps: add gettext support
Signed-off-by: Sami Kerola <kerolasa@iki.fi>
2011-12-20 17:30:45 +01:00
Craig Small
0c82b0ceda ps: rename SZ to SIZE
Means we do not follow SCO but less confusion.

A patch from Debian.

Bug-Debian: http://bugs.debian.org/541061
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:50:12 +11:00
Jessica McKellar
9ecd3c8414 ps: add sorting to %mem for ps
A patch from Debian.

Bug-Debian: http://bugs.debian.org/599043
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:48:38 +11:00
Alfredo Esteban
daf4014205 ps: --sort does not work with time argument
A patch from Debian.

Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508435
Bug-Debian: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=508435
Backported-by: Sami Kerola <kerolasa@iki.fi>
2011-12-18 22:29:12 +11:00
Craig Small
e4c45d6984 added ps etimes, miscellaneous top enhancements
ps program
 . etimes added for ELAPSED expressed in seconds
 . time_t used in place of former unsigned long

top program
 . corrected scroll message bug when 'x' toggle on
 . fixed forest view potential missing libflags bug
 . improved 'k' default signal invocation logic
 . enhanced logic for %CPU maximums displayed
 . made signal handling more robust and efficient
2011-09-12 22:18:23 +10:00
Craig Small
0e6ac0db3e added tgid support plus miscellaneous cleanup
ps
   . added tgid support
   . made process/task naming consistent
 top
   . added tgid support
   . standardized pid related width logic
 documents
   . added tgid to ps & top man documents
 library
   . fixed OOMEM_ENABLE readtask bug
   . corrected header typo for tgid
2011-08-17 21:01:35 +10:00
Craig Small
bb4f08ba29 refined library i/f and improved performance
Library changes
   readproc
    . added readeither to more efficiently
      fill both process and thread proc_t
    . added readproctab3, uses readeither
    . included task path support in:
        fill_cgroup_cvt, fill_cmdline_cvt,
        read_unvectored
    . QUICK_THREADS #define allows copying
      process info vs. repeatedly reading
    . simple_nexttid no longer values ppid
    . path var made non-static in readtask
    . documented 'proc_data_t' in .h file
    . tweaked some c comments & formatting
   library.map
    . added new readeither, readproctab3
 Program changes
   ps
    . exploits readproctab3 where possible
    . improved args/comm compliance
   top
    . exploits readeither
2011-08-11 07:42:14 +10:00
Craig Small
3ef4823f90 supgid/supgrp support, improved library interface
Library changes
   readproc
    . added support for supplementary groups
    . eliminated 2 potential mem leak sources
       . shortcut used for multi-threaded str
         vectors & ptrs was obsoleted
       . freeing of proc_t related dynamic
         memory now rests with the library
    . standardized/normalized many c comments
   sysinfo
    . corrected note regarding glibc & cpuinfo
   library.map
    . made the visible freeproc accessable
 Program changes
   pmap
    . initialized buffer for new readproc i/f
    . eliminated now obsolete free() call
   ps
    . added width aware supgrp support
    . initialized buffers for new readproc i/f
    . eliminated now obsolete free() calls
   top
    . added supgrp support as variable width
    . eliminated now obsolete free() calls
    . expoilted library freeproc function
    . corrected -h|v args text & spacing
    . updated some c comments
 Documentation changes
   ps.1
    . added supgid and supgrp
   top.1
    . added supgid and supgrp
    . addition of above required renumbering
      many fields in section 3a. DESCRIPTIONS
2011-08-01 21:28:46 +10:00
Jim Warner
7b0fc19e9d enhanced libproc cgroup/cmdline support, exploited by top
Library Changes
. added PROC_EDITCMDLCVT flag
. added an internal (static) fill_cmdline_cvt function:
  - reads and "escapes" /proc/#/cmdline
  - returns result as a single string in a single vector
  - callers are guaranteed a cmdline (no more NULL)
. added vectorize_this_str function, exploited by
  fill_cgroup_cvt, fill_cmdline_cvt
. generalized read_cmdline function as read_unvectored, now
  exploited by fill_cgroup_cvt, fill_cmdline_cvt, read_cmdline
  ( cgroup and cmdline no longer need be converted to string )
  ( vectors before being transformed to final representation )
. fixed bug regarding skipped group numbers (when enabled)
. escape_str made responsible for all single byte translation
  with distinction between control chars + other unprintable
. added escaped_copy function for already escaped strings
. reorganized parts of proc_t to restore formatting standards
  ( displacement changes shouldn't matter with new version # )
. former ZAP_SUSEONLY #define now OOMEM_ENABLE
. added to library.map: escaped_copy; read_cmdline

Top Program Changes
. exploited the new PROC_EDITCMDLCVT provision
. eliminated now obsolete #include "proc/escape.h"
. changed the P_WCH display format if no kernel symbol table
. fixed very old bug in lflgs for out-of-view sort fields
. former ZAP_SUSEONLY #define now OOMEM_ENABLE

Ps Program Changes
. exploited the new PROC_EDITCMDLCVT provision
. exploited the new escaped_copy function
. consolidated pr_args and pr_comm into pr_argcom

Signed-off-by: Jan Görig <jgorig@redhat.com>
2011-05-18 10:33:44 +02:00
Jan Görig
8621387c77 Updated ps to use new cgroup interface 2011-05-05 12:20:30 +02:00
Jan Görig
e47f54c569 Merged changes from procps-3.2.8 not present in CVS 2011-02-10 13:40:29 +01:00
Jan Görig
59679bc2a2 Rewritten cgroup support and suppressed root cgroup
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=593267
Signed-off-by: Jan Görig <jgorig@redhat.com>
2011-02-10 13:40:29 +01:00
Jan Görig
4d3c19af52 Read the system boot time from /proc instead of computing
Read the time of system boot from /proc/stat (entry: btime) instead
of computing it as the difference between the current time and the
uptime. This is the only way to get a consistent result which won't
possibly change from one run to the next.

The problems with the original code were:
* Both the current time and the uptime are rounded down to the second,
  but the system doesn't boot on an integer second value so they do not
  tick at the same moment. Thus, the rounding errors can cause a one
  second difference from one run to the next.
* We can't read the uptime and the current time at the exact same moment
  anyway, so the time difference we compute is bound to be inaccurate.
Bug-Redhat: https://bugzilla.redhat.com/show_bug.cgi?id=222251
Author: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Craig Small <csmall@debian.org>
2010-12-16 10:30:39 +01:00
Jan Görig
af25453d9a ps displays cgroup
Author: Swann Perarnau <swann.perarnau@imag.fr>
Bug-Debian: http://bugs.debian.org/469669
Reviewed-by: Craig Small <csmall@debian.org>
2010-12-16 10:23:49 +01:00
albert
b0210803bf update /dev/tty* info to May 2009 devices.txt 2009-05-03 06:39:33 +00:00
albert
7dd414ac1b new /proc/meminfo fields 2008-03-24 04:41:26 +00:00
albert
94b2a2e910 SCHED_* stuff up to #9 2007-05-05 18:42:16 +00:00
albert
5b13bb93c7 new foreign-OS research noted 2006-06-18 20:55:02 +00:00
albert
20fba946af SCHED_BATCH 2006-01-22 08:00:03 +00:00
albert
3ced977cf2 turn off new SE Linux code for now 2005-10-30 03:44:26 +00:00
albert
8df9f2ee02 SE Linux alias translation code (broken) 2005-10-30 02:45:45 +00:00
albert
f9d99085e7 crazy Debian GNU/kFreeBSD guy wanted this 2005-01-27 04:08:10 +00:00
albert
37b9b9a235 valgrind freaked out on some weird old code 2005-01-24 03:37:41 +00:00
albert
31fca6bb2d fix built-in test code 2005-01-10 21:32:49 +00:00
albert
8b29cc8a5d fix wchan alignment problem -- snprintf can return more than written 2005-01-10 21:29:53 +00:00
albert
2e78a17eda security labels can contain any printable ASCII 2005-01-05 20:09:03 +00:00
albert
c961f2604a leftovers in the 3.2.4 release 2004-11-04 20:50:59 +00:00
albert
6c949eddbe SubDomain Linux Security Module needs ^ and / characters -- Steve Beattie 2004-10-20 03:34:23 +00:00
albert
6ec1cff342 ps: built-in test code, etc. 2004-10-12 00:12:25 +00:00
albert
59fc9dd711 %cpu and other changes 2004-09-12 15:43:48 +00:00
albert
4acae28535 misc 2004-08-18 02:22:13 +00:00
albert
48497fc40d lots of stuff, sorry 2004-08-10 03:14:10 +00:00
albert
6308cb79e1 rh109147-like bug w/ old data in buffer, plus ")" problem and speed 2004-07-28 15:19:46 +00:00
albert
266d5b708a wchan for multithreaded process is now ~0ull or "*" 2004-07-21 21:17:35 +00:00
albert
bc5df8a7de avoid truncating long usernames 2004-07-21 00:37:38 +00:00
albert
c8a8290ef2 fix vmstat -d 2004-05-04 23:29:40 +00:00
albert
6a48d37343 ps: add k and -x 2004-04-26 00:47:31 +00:00
albert
3f603adbae remove some table inconsistencies and rename it_real_value 2004-04-17 03:13:56 +00:00
albert
d526282deb nswap data dead since 2.4.xx kernels 2004-04-13 03:56:52 +00:00
albert
3f49530d77 new -M and Z options for security data 2004-03-27 03:55:52 +00:00
albert
9f9c3a16ce STAT flags for fg process group and session leader 2004-03-26 01:34:16 +00:00
albert
efd8648fc7 add slabtop, fix top ^Z terminal handling 2004-01-24 22:33:56 +00:00
albert
c36c11c6b2 NSA SELinux for Linux 2.6.xx 2003-12-24 04:18:24 +00:00
albert
e180e4875f more goodies 2003-10-16 03:30:41 +00:00
albert
3a16c12ce3 top on wyse60, whitespace doc, thread fixes 2003-10-07 03:12:50 +00:00
albert
71312f1516 more per-process stuff 2003-09-29 04:09:52 +00:00
albert
35859fb0a8 ugly wart gone 2003-09-28 17:23:29 +00:00
albert
ac6260bc23 hard disk about to die 2003-09-28 02:45:05 +00:00
albert
c462dcfad5 ps thread support 2003-09-20 08:29:55 +00:00
albert
0db94e6a1a GPLONLY_ and PID-related stuff 2003-07-03 05:20:19 +00:00
albert
f540449980 KLONG 2003-01-16 08:29:24 +00:00
albert
b67dc52160 proc/escape.c works for ps 2002-12-21 13:07:53 +00:00
albert
d8367cbb3e still sig11 w/ "ps f" 2002-12-21 10:34:50 +00:00
albert
3e67b58ec2 satisfy GPL section 2a and LGPL section 2b name+date requirement 2002-12-15 00:30:17 +00:00
albert
8a745812cf Linux 2.5.xx /proc/*/wchan 2002-12-12 21:58:12 +00:00
albert
6b50c0cb8a misc 2002-12-09 08:13:55 +00:00
albert
5087f3dbf6 big header clean-up 2002-12-09 07:00:07 +00:00
albert
1ab9afe8a5 SPACE_AMOUNT 2002-12-03 22:53:45 +00:00
albert
4e7de4274d http://www.coker.com.au/selinux/procps/procps.diff 2002-11-27 23:04:32 +00:00
albert
460da3c767 c99 for ps 2002-11-27 09:52:19 +00:00
albert
98895d57c1 Jim needs restrictions 2002-11-27 00:24:01 +00:00
albert
80a7f3ff35 SMP fix, speed, hide IO-wait, dumb/VT510 terms 2002-10-18 21:07:49 +00:00
albert
81a4a3d281 gcc 3.0 warnings 2002-10-12 04:25:57 +00:00
albert
62b707978e give up, GNU libc will never be compatible with UNIX libc 2002-10-10 20:44:35 +00:00
albert
667b1bc2fa sort by %cpu redone 2002-10-09 23:40:30 +00:00
albert
201c31886d args/comm in needs 2002-10-08 21:48:19 +00:00
albert
74e87aa737 compare by subtraction 2002-10-07 03:13:14 +00:00
albert
bc9cdacdcc all 2.5.xx RT info except HP-UX "cls" 2002-10-03 09:41:57 +00:00
albert
533fced263 "size" means kB of swappable address space 2002-10-03 06:46:01 +00:00
albert
e96d6b6141 Avoid opening System.map just to check it, etc. 2002-10-02 12:10:39 +00:00
albert
84ed57020d ifdef and cruft removal 2002-09-30 07:11:30 +00:00
csmall
cd2727983c added SELINUX patches 2002-09-27 13:48:00 +00:00
albert
6587b498d6 unused code 2002-05-30 07:48:16 +00:00
albert
bc92025b7b 64-bit time for Linux 2.5.xx 2002-05-29 18:49:13 +00:00
albert
1e3b1ec13d shrink F to one column 2002-05-28 04:29:12 +00:00
albert
bce2da1f9a 64-bit time for Linux 2.5.xx 2002-05-28 04:18:55 +00:00
csmall
03a9b5a30f procps 010114 2002-02-01 22:47:29 +00:00