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.
b05770d94a
My, how time flies. Here we are finally attending to a 2 year old issue at long last (well, at least top is). In truth, this change was prompted by that more recent issue #201 and simply represents my initial picks from among those available with the new library provisions. Note: we have to bump that rcfile version whenever new fields are added. That will mean older top programs no longer can read this top's rcfile. But that's Ok since top offers a warning before replacing an older rcfile. Doubtless, more smaps_rollup fields will be introduced under top as we get more experience with this feature. However, any such usage comes with tremendoud costs as was reported for the previous patch and repeated here: Here is a small preview of just what you will discover when using this command line: time top/top -d0 -n1000. ------------------------------------ as a regular user with only PID + RES (statm) real 0m2.605s user 0m1.060s sys 0m1.377s with only PID + RSS (smaps) real 0m26.397s 10x more costly user 0m1.253s sys 0m24.915s ----------------- as a root (thus smaps for all tasks) with only PID + RES (statm) real 0m2.651s user 0m1.177s sys 0m1.286s with only PID + RSS (smaps) real 0m33.040s 12x more costly user 0m1.256s sys 0m31.533s Reference(s): . top/ps: add support for PSS reporting https://gitlab.com/procps-ng/procps/-/issues/112 . ps: expose shared/private memory separately https://gitlab.com/procps-ng/procps/-/issues/201 Signed-off-by: Jim Warner <james.warner@comcast.net> |
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|---|---|---|
| contrib | ||
| doc | ||
| Documentation | ||
| include | ||
| lib | ||
| man-po | ||
| misc | ||
| po | ||
| proc | ||
| ps | ||
| testsuite | ||
| top | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| AUTHORS | ||
| autogen.sh | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| COPYING.LIB | ||
| create-man-pot.sh | ||
| free.1 | ||
| free.c | ||
| INSTALL.md | ||
| kill.1 | ||
| kill.c | ||
| Makefile.am | ||
| NEWS | ||
| pgrep.1 | ||
| pgrep.c | ||
| pidof.1 | ||
| pidof.c | ||
| pidwait.1 | ||
| pkill.1 | ||
| pmap.1 | ||
| pmap.c | ||
| pwdx.1 | ||
| pwdx.c | ||
| README.md | ||
| skill.1 | ||
| skill.c | ||
| slabtop.1 | ||
| slabtop.c | ||
| snice.1 | ||
| sysctl.8 | ||
| sysctl.c | ||
| sysctl.conf | ||
| sysctl.conf.5 | ||
| tload.1 | ||
| tload.c | ||
| translate-man.sh | ||
| uptime.1 | ||
| uptime.c | ||
| vmstat.8 | ||
| vmstat.c | ||
| w.1 | ||
| w.c | ||
| watch.1 | ||
| watch.c | ||
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:
- 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.
- GitLab Issues - To the left of this page is the issue tracker. You can report bugs here.
- 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.