Commit Graph

45 Commits

Author SHA1 Message Date
John Baldwin
9a7a98a0dc Update various statements in vmstat(8) to match reality.
- The process stats are actually thread counts rather than process
  counts.
- Simplify various descriptions to remove mention of stats that are
  updated every 5 seconds (all VM related stats are now "instant",
  only the load average is updated every 5 seconds).
- Don't make any mention of special treatment for processes that have
  been active in the last 20 seconds.  We don't track that stat.
- Rework the description of active virtual memory.  Call it mapped
  virtual memory and explicitly point out it is not the same as the
  active page queue (which corresponds to "Active" in top(1)), and
  also hint at the possible bogusness of the value (e.g. if a process
  maps a single page out of a multiple GB file, the entire file's size
  is considered mapped).
- Simplify a few descriptions that implied their output was a value
  per interval.  All of the "rate" values are per-second rates scaled
  across the interval.
- Update a few comments for 'struct vmtotal' along similar lines.

Reported by:	mwlucas (indirectly)
Reviewed by:	kib
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D13905
2018-01-18 19:43:02 +00:00
Warner Losh
fbbd9655e5 Renumber copyright clause 4
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00
Craig Rodrigues
0e51ea9106 Convert vmstat to use libxo.
This patch was based on this patch:
https://github.com/Juniper/libxo/blob/master/patches/vmstat.patch

by Phil Shafer at Juniper Networks, but updated to the latest
vmstat code.

Reviewed by:           allanjude
Differential Revision: https://reviews.freebsd.org/D3935
2015-11-20 05:15:34 +00:00
John Baldwin
ff87ae350e Export a list of VM objects in the system via a sysctl. The list can be
examined via 'vmstat -o'.  It can be used to determine which files are
using physical pages of memory and how much each is using.

Differential Revision:	https://reviews.freebsd.org/D2277
Reviewed by:	alc, kib
MFC after:	2 weeks
Sponsored by:	Norse Corp, Inc. (forward porting to HEAD/10)
2015-05-27 18:11:05 +00:00
Benjamin Kaduk
e1ba604a96 Update vmstat usage for last-argument count/wait parameters
Correct the usage in both the manpage and in usage() to indicate
that the wait interval and repetition count may be given either
with the respective -w/-c arguments, or as the final positional
arguments. [0]

The corresponding code to implement the positional arguments has
been conditional on the (always-enabled) BACKWARD_COMPATIBILITY
macro since the original 4.4-lite import.  It's no longer reasonable
to remove the functionality, so remove the macro and conditional
instead.

Note that multiple disks may be given on the command line.

While here, sort arguments and apply minor mdoc fixes.

PR:		184755 [0]
Approved by:	hrs (mentor, src committer)
2014-08-08 16:32:06 +00:00
Joel Dahl
da52b4caaf Remove the advertising clause from UCB copyrighted files in usr.bin. This
is in accordance with the information provided at
ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change

Also add $FreeBSD$ to a few files to keep svn happy.

Discussed with:	imp, rwatson
2010-12-11 08:32:16 +00:00
Ulrich Spörlein
0d9deed52c mdoc: drop redundant .Pp and .LP calls
They have no effect when coming in pairs, or before .Bl/.Bd
2010-10-08 12:40:16 +00:00
Sean Bruno
8b10473d30 Allow sub-second interval timings for iostat and vmstat.
e.g.
vmstat -w.5
iostat -w.5

Reviewed by:	jhb
Approved by:	scottl (mentor)
Obtained from:	Yahoo Inc.
MFC after:	2 weeks
2010-05-21 17:10:52 +00:00
Peter Wemm
4adb5266e8 Add the -H, -h and -P flags to vmstat. -P causes per-cpu output of
user/system/idle stats.  -h feeds the memory column through
humanize_number() to reduce the amount of column overflowing.  -H turns
this off.  -h is turned on by default if stdout is a tty.
2007-12-13 02:36:11 +00:00
Robert Watson
29a055ac65 Cross-reference libmemstat(3), malloc(9), uma(9). 2006-11-02 19:53:57 +00:00
Ruslan Ermilov
e75d2f3694 The vm.zone sysctl has gone; zone stats are now supplied by libmemstat(3). 2006-10-21 10:40:12 +00:00
Ruslan Ermilov
cb29445a92 Markup fixes. 2006-09-29 15:20:48 +00:00
Dmitry Morozovsky
e3f1789aa0 Default number of direct access devices had been changed from three to two.
Reflect this in other paragraphs.

PR:		93201
Submitted by:	Marian Cerny
MFC After:	1 week
2006-02-12 10:30:52 +00:00
Giorgos Keramidas
26d8ca837e Interlink systat(1), iostat(8) and vmstat(8) through their SEE ALSO
sections, so that users of one can learn about the others easily.
2005-05-26 17:54:16 +00:00
Ruslan Ermilov
6c7216df78 Sort sections. 2005-01-18 13:43:56 +00:00
Ruslan Ermilov
6a3e8b0adc Mechanically kill hard sentence breaks. 2004-07-02 22:22:35 +00:00
Ruslan Ermilov
79e447559c Bumped the document date. 2004-05-19 09:54:14 +00:00
Ruslan Ermilov
ab82970ed2 Properly document the -M and -N options. 2004-03-26 11:01:45 +00:00
Dag-Erling Smørgrav
eb23b4e6cd Document the simpler -a semantics. 2003-12-10 22:12:06 +00:00
Dag-Erling Smørgrav
c51633823d Finish the transition from libkvm to sysctl that I started a while ago.
The use of libkvm for post-mortem analysis is still supported (though it
could use more testing).  We can now remove vmstat's setgid bit.

While I'm here, hack the interrupt listing code to not display interrupts
that haven't occurred unless the -a option was given on the command line,
and document this change.
2003-12-07 17:46:14 +00:00
Tim J. Robbins
bd67e96dbc Uncomment the description of the -f option. Add rfork() to the list of
system calls it displays stats about.

PR:		50924
2003-04-14 07:22:25 +00:00
Philippe Charnier
084e19802d The .Nm utility 2002-07-14 15:12:00 +00:00
Josef Karthauser
1063e12617 Replace /kernel with /boot/kernel/kernel.
PR:		docs/37757
Submitted by:	Hiten Pandya <hiten@uk.FreeBSD.org>
2002-05-09 11:47:42 +00:00
Dima Dorfman
f247324df7 Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00
Ruslan Ermilov
625003720a mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 14:16:33 +00:00
Ruslan Ermilov
d0353b836e mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:38:02 +00:00
Dag-Erling Smørgrav
0b5c9ae2f3 Document that the -z option is equivalent to 'sysctl vm.zone'. 2001-01-23 00:37:54 +00:00
Ruslan Ermilov
9b88faecd3 Prepare for mdoc(7)NG. 2000-12-19 16:00:12 +00:00
Ruslan Ermilov
8fe908ef0c mdoc(7) police: use the new features of the Nm macro. 2000-11-20 19:21:22 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Kris Kennaway
735df1561f Correct description of -c and -w options
Inspired by:	PR docs/11774
Submitted by:	Chad R. Larson <chad@freeway.dcfinc.com>
1999-06-06 14:16:51 +00:00
Kris Kennaway
d662d4b701 Move an option outside of a nested list and up a bit to live free among
its brothers and sisters.
1999-04-26 14:08:04 +00:00
Bruce Evans
218221f38a Fixed disordering of options in previous commit. 1999-02-15 13:57:18 +00:00
Matthew Dillon
2e8c5eaef8 Add -z option to vmstat to dump data from the zone allocator 1999-02-13 09:59:24 +00:00
Kenneth D. Merry
4faf42f3ae Fix vmstat display problems. The header printout wasn't quite right, and
the display wrapped around.

This decreases the default maximum number of disks shown to 2, so things
don't wrap around so easily.  Also, it fixes the header display issues.

Submitted by:	Bruce Evans <bde@FreeBSD.ORG>
1999-02-10 00:46:27 +00:00
Justin T. Gibbs
8d2fbde504 Update system to new device statistics code.
Submitted by:	"Kenneth D. Merry" <ken@plutotech.com>
1998-09-15 08:16:45 +00:00
Philippe Charnier
495aecea76 Use err(3). Add some %d to %ld changes. 1997-08-25 06:40:05 +00:00
Steve Price
aeaa52dbdc Cleanup inconsistencies in the manpage.
PR:		docs/3709
Submitted by:	Takahiro Yugawa <yugawa@orleans.rim.or.jp>
1997-08-23 21:42:46 +00:00
Mike Pritchard
9d16a728b6 Make the man page agree with the actual vmstat output
and options.
1997-01-09 06:49:33 +00:00
Mike Pritchard
33d83c832e Change a stray reference to pstat to vmstat.
Pointed-out-by: bde
1996-08-24 16:12:53 +00:00
Mike Pritchard
1c1f145f2b Convert to mdoc format. 1996-08-23 21:40:59 +00:00
Joerg Wunsch
c584e0e88a Correct a typo.
Submitted by:	mbarkah@hemi.com (Ade Barkah)
1996-04-30 05:20:32 +00:00
Andreas Schulz
ab51dae938 change a .TH VMSTAT 1 to a .TH VMSTAT 8 . 1994-12-12 00:26:08 +00:00
David Greenman
b3bfc7199e Converted 'vmunix' to 'kernel'. 1994-08-05 09:14:37 +00:00
Rodney W. Grimes
9b50d90275 BSD 4.4 Lite Usr.bin Sources 1994-05-27 12:33:43 +00:00