Commit Graph

143 Commits

Author SHA1 Message Date
jhb
2f0c1c2a24 When fetching sum stats (vmstat -s) from a crash dump, fetch per-CPU counts
and sum them to form the total counts.

PR:		bin/135893
Submitted by:	Mikolaj Golub  to my trociny of gmail
MFC after:	1 week
2009-10-29 17:34:02 +00:00
delphij
c36f13a958 Utilize calloc() instead of bzero'ing manually. 2009-02-21 03:43:20 +00:00
keramida
a29fd74e21 Fix comment typo that managed to sneak in when I copy pasted some
comments & code from iostat.
2008-11-04 18:20:54 +00:00
keramida
551b80b676 Repeat vmstat header after window.rows instead of a hardcoded 20.
Use ioctl() to get the window size in vmstat(8), and force a new
header to be prepended to the output every time the current window
size changes.  Change the number of lines before each header to the
current lines of the terminal when the terminal is resized, so that
the full terminal length can be used for output lines.

Inspired by:	svn change 175562 (same feature for iostat)
Reviewed by:	ru (who fixed some of my bugs too)
MFC after:	1 week
2008-11-04 18:02:35 +00:00
jhb
c990b20179 Use kvm_getcptime(3) to fetch the global CPU time stats from a crashdump
since the 'cp_time' symbol doesn't exist in recent kernels.  This fixes
iostat and vmstat on crash dumps.

MFC after:	1 week
2008-08-19 21:33:09 +00:00
ru
1bd86de998 Add forgotten -H, -h, and -P to usage(). 2008-04-10 09:56:57 +00:00
peter
edc23a8104 Fix some boolean logic errors. && vs & and other sillyness. *blush*
This would prevent it from skipping non-present cpus in -P output.

Submitted by:  Pieter de Goeje <pieter@degoeje.nl>
2008-01-18 22:09:44 +00:00
peter
8348a2e294 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
alc
215153274b Add a counter for the total number of pages cached and support for
reporting the value of this counter in the program "vmstat".

Approved by:	re (rwatson)
2007-07-27 20:01:22 +00:00
ru
3b8270a3d5 - Revert signedness type changes to "struct vmtotal"; by making
them unsigned I made the possible overflows hard to detect,
  and it only saved 1 bit which isn't principal, even less now
  that the underlying issue with the total of virtual memory has
  been fixed.  (For the record, it will overflow with >=2T of
  VM total, with 32-bit ints used to keep counters in pages.)

- While here, fix printing of other "struct vmtotal" members
  such as t_rq, t_dw, t_pw, and t_sw as they are also signed.

Reviewed by:	bde
MFC after:	3 days
2006-11-28 12:46:02 +00:00
ru
9a3577d01b Oops, fix the format specifier to what was intended. 2006-11-23 11:47:34 +00:00
ru
1ea77e90a7 - Fix types of "struct vmmeter" members so they are unsigned.
- Fix overflow bugs in sysctl(8), systat(1), and vmstat(8)
  when printing values of "struct vmmeter" in kilobytes as
  they don't necessarily fit into 32 bits.  (Fix sysctl(8)
  reporting of a total virtual memory; it's in pages too.)
2006-11-20 16:04:41 +00:00
rwatson
a2444d132b Cross-reference libmemstat(3), malloc(9), uma(9). 2006-11-02 19:53:57 +00:00
ru
95ec5519d6 The vm.zone sysctl has gone; zone stats are now supplied by libmemstat(3). 2006-10-21 10:40:12 +00:00
ru
7b0d9d9885 - Add comma after REQUESTS field missed in previous commit.
- Widen some columns; make width of header columns less cryptic.
2006-10-21 10:16:26 +00:00
glebius
8f073c1e71 Print the number of allocation failures in UMA zones.
PR:	kern/102940
2006-10-21 09:08:35 +00:00
ru
33e34aeeb5 Markup fixes. 2006-09-29 15:20:48 +00:00
obrien
f16c41b4d8 Increase the field widths of flt (total number of page faults), fr (pages
freed), & cs (CPU context switch rate).  'vmstat 1' output is now lined up
for today's typical machines vs. a VAX.  [tested my modest 1.6ghz laptop]
2006-06-03 20:34:56 +00:00
marck
fe1126effe 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
andre
74d3ddeb32 Obtain true uptime through clock_gettime(CLOCK_MONOTONIC, struct *timespec)
instead of subtracting 'bootime' from 'now'.

Sponsored by:	TCP/IP Optimization Fundraise 2005
2005-10-17 15:37:22 +00:00
rwatson
f7a5e4f7e2 Use libmemstat(3)'s kvm support for malloc(9) rather than hand-extracting
this information from the core dump.
2005-08-06 13:56:21 +00:00
rwatson
548e1b7d84 Teach vmstat's domemstat_zone() to use memstat_kvm_uma() when the kvm
descriptor is non-NULL, restoring vmstat -z support for core dumps and
kmem access.  These were broken with the introduction of UMA.
2005-08-01 21:33:17 +00:00
rwatson
180ae3e7ba Minor syntax tweaks:
- Remove some extra blank lines.
- Remove comments that don't contribute to understanding.
- Remove additional blank lines in output added to maximize compatibility
  with older vmstat output, but that is actually somewhat gratuitous.

Submitted by:	bde
MFC with:	other vmstat libmemstat(3) changes
2005-07-28 09:45:08 +00:00
rwatson
4bf88ad842 Teach vmstat -m and vmstat -z to use libmemstat(3). Certain
statistics from -z are now a bit different due to changes in the
way statistics are now measured.  Reproduce with some amount of
accuracy the slightly obscure layouts adopted by the two kernel
sysctls.  In the future, we might want to normalize them.

GC dosysctl(), which is now no longer used.

MFC after:	1 week
2005-07-25 22:35:10 +00:00
rwatson
f5b0199972 Modify vmstat(8)'s domem() routine, which is responsible for extracting
malloc(9) statistics from kernel memory or a kernel coredump, to catch
up with recent changes to adopt per-CPU malloc(9) statistics.  The new
routines walk the per-CPU statistics pools and coalesce them for
presentation to the user.
2005-05-29 13:40:00 +00:00
keramida
dd13f28b17 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
ru
0491ba1f63 Sync program's usage() with manpage's SYNOPSIS. 2005-05-21 09:55:10 +00:00
ps
c9d616766c Fix an overflow when calculating the number of kilobytes from the
number of pages.

Obtained from:	Yahoo!
2005-02-21 14:35:00 +00:00
ru
7f3c7f0d46 Sort sections. 2005-01-18 13:43:56 +00:00
ru
fb1d8b3724 Mechanically kill hard sentence breaks. 2004-07-02 22:22:35 +00:00
green
b09ea0c305 Make vmstat -m work with -M/-N again. Note that making vmstat -z work
is much harder, and -m is grossly using unexported interfaces (that is,
the array of malloc zones/sizes does not have an exported type).
2004-06-30 01:34:26 +00:00
ru
4c01ec9500 Bumped the document date. 2004-05-19 09:54:14 +00:00
tjr
82d781d1b5 Print fork statistics with %u as they are unsigned quantities.
PR:		65889
Submitted by:	Ken Stailey
2004-04-23 13:10:29 +00:00
ru
a05bd8e51a Properly document the -M and -N options. 2004-03-26 11:01:45 +00:00
bde
0f0e6e75d4 Fixed a misspelling of 0 as NULL.
Fixed a nearby bug.  The "play it safe" code in dosysctl() was unsafe
because it overran the buffer by 1 if sysctl() filled all of the buffer.

Fixed a nearby style bug in output.  Not just 1, but 2 extra newlines
were printed at the end by "vmstat -m" and "vmstat -z".  Don't print
any newlines explicitly.  This depends on 2 of the many formatting
bugs in the corresponding sysctls.  First, the sysctls return an extra
newline at the end of the strings.  This also messes up output from
sysctl(8).  Second, the sysctls return an extra newline at the beginning
of the strings.  This is good for separating the 2 tables output by
"vmstat -mz" and for starting the header on a new line in plain sysctl
output, but gives a bogus extra newline at the beginning for "vm -[m | z]"
and "sysctl -n [kern.malloc | vm.zone]".

Fixed some nearby style bugs in the source code:
- the same line that misspelled 0 as NULL also spelled NULL as 0.
- the size was doubled twice in the realloc loop.
- the "play it safe" comment was misleading.  Terminating the buffer
  is bogus because dosysctl() is only meant to work with sysctls that
  return strings and the terminator is part of a string.  However, the
  kern.malloc sysctl has more than style bugs.  It also doesn't return
  a string.  Termination is needed to work around this bug.
2004-03-11 11:30:57 +00:00
ru
7e3a5665be Put libdevstat before libkvm, because the former depends on the latter. 2004-02-04 10:20:43 +00:00
dwmalone
088a25112c Remove an unused variable.
Add some missing constness.
2003-12-25 01:32:55 +00:00
bde
07560acf3d Fixed misplacement of __FBSDID(). Backed out editing of vendor id lines.
Just wrap them in #if 0...#endif.
2003-12-11 10:58:29 +00:00
des
b37897400d Revert part of revision 1.74 after bde reminded me of a detail I'd
forgotten about how sysctl works.  This removes a potential (though
not very likely) race that 1.74 introduced.
2003-12-11 07:46:08 +00:00
des
adbd0e152f Whitespace cleanup. 2003-12-10 22:19:19 +00:00
des
f3c82d0291 Remove debugging printf 2003-12-10 22:14:32 +00:00
des
e12d3dfc79 Document the simpler -a semantics. 2003-12-10 22:12:06 +00:00
des
dcadbab0fa Fix a couple of issues in the interrupt code:
- Replace overly-complicated (and buggy) -a logic with a much simpler
   version: -a causes all interrupts to be displayed, otherwise only
   those that have occurred are displayed.  This removes the need for
   any MD code.

 - Instead of just making sure intrcnt is large enough, figure out the
   exact size it needs to be.  We derive nintr from this number, and we
   don't want to risk printing garbage.  Note that on sparc64, we end up
   printing garbage anyway because the names of non-existent interrupts
   are left uninitialized by the kernel.

Tested on:	alpha, i386, sparc64
2003-12-10 22:11:51 +00:00
des
76dc1df2f9 s/u_(int|long)\>/unsigned \1/ 2003-12-10 21:43:10 +00:00
dwmalone
869e10c88c Fix a couple of warnings (const a function parameter and change some
ints to size_ts to better match the types of variables they are used
with).

Glanced at by:	des
2003-12-10 19:24:11 +00:00
marcel
4bb21e1ec3 Unbreak vmstat -i on ia64:
o  nintr and inamlen must by of type size_t, not int,
o  Remove now unnecessary casts,
o  Handle the aflag differently, because the intr. names have a
   fixed width and almost always have trailing spaces.
2003-12-08 07:57:57 +00:00
des
0e8712116d 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
jmg
63482864f7 make minimum column size for interrupt name be the heading (depends upon
Total being shorter than interrupt)..

Pointed out by:	bde
2003-11-09 20:39:56 +00:00
jmg
66e31fa9e3 fix an overflow bug when scanning for length of names that I introduced in
the last commit...

include some minor style changes and fixes that bde sent me

Submitted by:	bde
2003-11-08 07:24:03 +00:00
jmg
2a6886b365 take mux's fix to the next level, scan the names and make the field larger
as necessary... on sparcs where:
atapci0 vec1996
is a bit too long
2003-10-28 05:02:03 +00:00