Command line and full screen utilities for browsing procfs, a "pseudo" file system dynamically generated by Linux to provide information about the status of entries in its process table.
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Jim Warner c69104b2b8 library: added important new functionality, <pids> api
This commit introduces some new capabilities available
in libproc-2 under the <PIDS> interface. Along the way
errors impacting some item values have been corrected.

The following summarizes the major changes being made.

1. The PIDS_TIME_START item was represented as seconds
since system boot but really held tics since boot. And
some programs properly divided it by Hertz to actually
yield seconds while others acted as if it already was.

So, now we have a new PIDS_TICS_BEGAN field and all of
the 'TIME' fields properly reflect seconds. With those
'TIME' fields, the type was changed to 'float/real' so
one could convert it back to tics without loss of some
centiseconds reflected in the Hertz guy (usually 100).

2. The boot_seconds was established in procps_pids_new
meaning it was fixed/unchanging. As a result, one item
(PIDS_TIME_ELAPSED) was rendered useless. So now, each
of the three retrieval functions establishes a current
boot_seconds well before the set functions are called.

3. Added a PIDS_UTILIZATION item that will provide the
CPU usage over the life of a process, as a percentage.

4. Added PIDS_TIME_ALL_C for symmetry with the similar
item called PIDS_TICS_ALL_C (which reflects raw tics).

5. That 'derived from' notation has been added to some
additional header items to reflect their true origins.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2022-02-27 21:27:02 +11:00
contrib miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
doc doc: minor tweaks affecting three newlib man documents 2022-02-27 21:27:02 +11:00
Documentation library: oh no, failed to right-justify 1 comment line 2021-10-28 07:06:57 +11:00
include c: print strerror() instead of error code. 2021-06-16 20:02:59 +10:00
lib testsuite: Make test program compile on Hurd 2021-10-13 07:56:39 +11:00
man-po nls: Update man translations 2021-12-22 09:02:45 +11:00
misc build-sys: rename the 'tools' subdirectory to 'misc' 2012-03-02 21:25:38 +11:00
po NLS: Update translate files 2021-06-17 16:45:07 +10:00
proc library: added important new functionality, <pids> api 2022-02-27 21:27:02 +11:00
ps doc: updated 3 man pages for 'LIBPROC_HIDE_KERNEL' var 2022-01-07 19:19:15 +11:00
testsuite testsuite: Add sysctl test for directory checks 2021-09-15 20:16:06 +10:00
top top: just trade an assignement for a manifest constant 2022-02-27 21:27:02 +11:00
.gitignore library: Rename to libproc-2 2021-02-20 22:30:31 +11:00
.gitlab-ci.yml test: Update gitlab CI YAML to use shared runner 2016-04-20 22:20:55 +10:00
AUTHORS Changed git site to gitlab 2015-05-10 14:57:50 +10:00
autogen.sh Remove autogen.sh libtool prog check #222. 2021-10-13 20:38:22 +00:00
ChangeLog Changed git site to gitlab 2015-05-10 14:57:50 +10:00
configure.ac configure: add macro to check for __PROGNAME 2021-05-29 16:14:52 +10:00
COPYING license: update FSF addresses 2012-03-04 08:04:24 +11:00
COPYING.LIB miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
create-man-pot.sh misc: Update translations _________________ (catch up) 2018-05-06 07:19:38 +10:00
free.1 free: option to show memory commit limits 2021-06-16 20:29:03 +10:00
free.c free: Use wstr width and not length 2022-02-01 16:46:09 +11:00
INSTALL.md INSTALL.md: Replace blockquotes with code blocks 2020-04-24 18:56:16 +10:00
kill.1 kill: use sigqueue to pass value with the signal. 2020-05-11 17:36:12 +10:00
kill.c kill: use sigqueue to pass value with the signal. 2020-05-11 17:36:12 +10:00
Makefile.am library: created a valgrind 'warning-suppression' file 2021-10-18 17:38:43 +11:00
NEWS free: Use wstr width and not length 2022-02-01 16:46:09 +11:00
pgrep.1 First cut at subset=pid proc mount handling 2021-12-16 20:36:00 +11:00
pgrep.c First cut at subset=pid proc mount handling 2021-12-16 20:36:00 +11:00
pidof.1 Merge branch 'teknoraver/procps-master' 2020-12-22 14:36:09 +11:00
pidof.c Merge branch 'teknoraver/procps-master' 2020-12-22 14:36:09 +11:00
pidwait.1 pidwait: Rename from pwait 2021-02-15 21:55:05 +11:00
pkill.1 procps 010114 2002-02-01 22:47:29 +00:00
pmap.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
pmap.c pmap: Fix minor compiler warning 2022-01-08 07:47:46 +11:00
pwdx.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
pwdx.c 0021-pwdx: Fix a misleading comment. 2018-06-23 21:59:14 +10:00
README.md misc: Fix typo 2021-10-14 07:57:27 +11:00
skill.1 skill: support namespaces 2013-04-18 13:59:44 -04:00
skill.c all: make buildable again for new 'misc.h' header file 2021-01-21 17:30:25 +11:00
slabtop.1 slabtop: Check for bad d and o option combination 2021-03-11 22:10:37 +11:00
slabtop.c slabtop: Check for bad d and o option combination 2021-03-11 22:10:37 +11:00
snice.1 procps 010114 2002-02-01 22:47:29 +00:00
sysctl.8 sysctl man page update for pattern 2021-05-29 16:20:02 +10:00
sysctl.c sysctl: eliminate a warning '-Wmisleading-indentation' 2022-01-13 19:34:39 +11:00
sysctl.conf misc: Add some link examples to sysctl.conf (catch up) 2018-05-06 07:19:38 +10:00
sysctl.conf.5 docs: Add note in sysctl.conf.5 for line length 2021-09-15 21:45:26 +10:00
tload.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
tload.c all: make buildable again for new 'misc.h' header file 2021-01-21 17:30:25 +11:00
translate-man.sh Fixed translate-man.sh for no top ps 2014-05-28 20:12:33 +10:00
uptime.1 docs: Fix typos in slabtop.1, sysctl.8 and uptime.1 2014-09-16 19:35:28 +02:00
uptime.c First cut at subset=pid proc mount handling 2021-12-16 20:36:00 +11:00
vmstat.8 vmstat: use KiB/s for bi/bo instead of blocks/s 2021-11-14 18:48:12 +11:00
vmstat.c First cut at subset=pid proc mount handling 2021-12-16 20:36:00 +11:00
w.1 docs: some manpage fixes 2020-06-04 22:33:16 +10:00
w.c w: Remove unreachable l option code 2021-03-11 21:48:14 +11:00
watch.1 watch.1: Correct long option for no linewrap. 2021-04-24 12:01:49 +10:00
watch.c Coverity scan findings - memleaks, unused vars, potential nullptr dereferences 2021-05-10 20:09:20 +10:00

build status procps

procps is a set of command line and full-screen utilities that provide information out of the pseudo-filesystem most commonly located at /proc. This filesystem provides a simple interface to the kernel data structures. The programs of procps generally concentrate on the structures that describe the processess running on the system.

The following programs are found in procps:

  • free - Report the amount of free and used memory in the system
  • kill - Send a signal to a process based on PID
  • pgrep - List processes based on name or other attributes
  • pkill - Send a signal to a process based on name or other attributes
  • pmap - Report memory map of a process
  • ps - Report information of processes
  • pwdx - Report current directory of a process
  • skill - Obsolete version of pgrep/pkill
  • slabtop - Display kernel slab cache information in real time
  • snice - Renice a process
  • sysctl - Read or Write kernel parameters at run-time
  • tload - Graphical representation of system load average
  • top - Dynamic real-time view of running processes
  • uptime - Display how long the system has been running
  • vmstat - Report virtual memory statistics
  • w - Report logged in users and what they are doing
  • watch - Execute a program periodically, showing output fullscreen

Reporting Bugs

There are a few ways of reporting bugs or feature requests:

  1. Your distribution's bug reporter. If you are using a distribution your first port of call is their bug tracker. This is because each distribution has their own patches and way of dealing with bugs. Also bug reporting often does not need any subscription to websites.
  2. GitLab Issues - To the left of this page is the issue tracker. You can report bugs here.
  3. Email list - We have an email list (see below) where you can report bugs. The problem with this method is bug reports often get lost and cannot be tracked. This is especially a big problem when its something that will take time to resolve.

If you need to report bugs, there is more details on the Bug Reporting page.

Email List

The email list for the developers and users of procps is found at http://www.freelists.org/archive/procps/ This email list discusses the development of procps and is used by distributions to also forward or discuss bugs.