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 c082779769 library: fix an insidious bug affecting TICS_ALL_DELTA
This simple two line code change fixes an intermittent
bug whereby %CPU for parent(s) with collapsed children
could be vastly understated from those displayed under
the current 3.3.17 publicly available top & libprocps.

If one started several top instances in the background
using very a small delay interval (zero?), then if the
shell under which they were running was collapsed, you
would see similar %CPU results for both the libraries.

However, when running a demanding 'make' like a kernel
compile (especially if backed by fast processors and a
SSD), then newlib would generally show only 1/3 to 1/2
of the collapsed %CPU values that appeared for 3.3.17.

Of course, now that the bug has been swatted with this
commit the disparities between those results is easily
explained. Since newly created tasks never contributed
tics during the interval where they were created, only
with many short lived tasks would differences surface.

Signed-off-by: Jim Warner <james.warner@comcast.net>
2021-04-24 11:11:03 +10:00
contrib miscellaneous: clean up trailing whitespace once again 2013-04-07 18:05:01 +10:00
doc docs: fix a couple of spelling errors in new man pages 2021-04-06 16:51:03 +10:00
Documentation all: make buildable again for new 'misc.h' header file 2021-01-21 17:30:25 +11:00
include build-sys: fix some important 'tests.h' related issues 2020-08-17 21:49:08 +10:00
lib misc: Update Craig's email 2021-01-21 17:37:48 +11:00
man-po build-sys: Fix the uninstall-man target 2021-02-24 20:58:28 +11:00
misc build-sys: rename the 'tools' subdirectory to 'misc' 2012-03-02 21:25:38 +11:00
po build-sys: Ignore temp directory for POTFILES.in 2021-02-15 21:47:35 +11:00
proc library: fix an insidious bug affecting TICS_ALL_DELTA 2021-04-24 11:11:03 +10:00
ps docs: psr ps field is last run processor 2021-03-29 22:11:27 +11:00
testsuite build-sys: Handle zero length diskstats in tests 2021-03-29 22:23:03 +11:00
top top: respond to library type change for TICS_ALL_DELTA 2021-04-24 11:11:03 +10:00
.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 Fix a remaining util-linux word in autogen 2012-02-26 08:39:16 +11:00
ChangeLog Changed git site to gitlab 2015-05-10 14:57:50 +10:00
configure.ac library: Rename to libproc-2 2021-02-20 22:30:31 +11:00
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 docs: use correct units in free.1 _________ (catch up) 2019-09-22 07:32:03 +10:00
free.c free: Typo fix in error messages 2021-03-11 21:45:14 +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 build-sys: Fix the uninstall-man target 2021-02-24 20:58:28 +11:00
NEWS pkill: Add lt- variants 2021-04-05 14:40:00 +10:00
pgrep.1 pidwait: Rename from pwait 2021-02-15 21:55:05 +11:00
pgrep.c pkill: Add lt- variants 2021-04-05 14:40:00 +10:00
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 misc: needed adaptations for the changes in <pids> api 2021-03-11 21:21:23 +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: eliminate accumulated trailing whitespace, again 2016-03-12 14:53:53 +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 docs: escape circumflex in sysctl.8 2021-03-29 22:28:30 +11:00
sysctl.c sysctl: config directory order 2020-02-27 21:56:13 +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: some manpage fixes 2020-06-04 22:33:16 +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 misc: Update Craig's email 2021-01-21 17:37:48 +11:00
vmstat.8 docs: vmstat.8 - swap is not virtual memory 2021-01-21 18:01:31 +11:00
vmstat.c all: make buildable again for new 'misc.h' header file 2021-01-21 17:30:25 +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 docs: Consistent style across watch.1 2020-12-22 11:04:50 +11:00
watch.c If you use echo -e $(put sgr0)"text" - reset color attributes, it turns out the artifact (Btext 2020-12-22 15:44:29 +11:00

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 distributions 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.