Commit Graph

69 Commits

Author SHA1 Message Date
keramida
eab3a8645a Repeat iostat header after rows-3 instead of a hardcoded 20.
Use ioctl() to get the window size in iostat(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 `rows - 3' when the terminal is resized, so that the
full terminal length can be used for output lines.

PR:		bin/119705
Submitted by:	keramida
Approved by:	maxim
MFC after:	2 weeks
2008-01-22 11:18:51 +00:00
maxim
f4a836e936 o Fix a typo. errx() -> err().
Submitted by:	das
2008-01-12 20:57:19 +00:00
maxim
147942350a o Plug a memory leak: do not forget to free asprintf(3) allocated
memory.

PR:		bin/119608
Submitted by:	peter.schuller
MFC after:	1 week
2008-01-12 20:37:06 +00:00
maxim
16a9786df8 o Get missed "%" in output back.
Submitted by:	sem
MFC after:	1 week
2007-12-16 07:18:59 +00:00
maxim
32aa3c3c0d o With -x switch do not pay attention at the hardcoded limit of 3 devices and dump stats for all devices in the system. User can still limit iostat -x by -n switch.
Spotted by:	Igor Sysoev
Submitted by:	kensmith
Approved by:	re (kensmith)
MFC after:	2 weeks
2007-08-03 15:45:55 +00:00
maxim
1895dab4af o Re-indent long lines.
Style(9) wisdom from:	bde
2007-05-14 18:04:07 +00:00
maxim
a0d76ca625 o Fix several style bugs in the previous commit.
Prodded by:	bde
2007-05-12 16:42:01 +00:00
maxim
639e269d14 o Make iostat -Ix work: print per-interval I/O extended statistics.
PR:		bin/112559
Submitted by:	Dan Nelson
MFC after:	2 weeks
2007-05-12 09:28:34 +00:00
jhb
fb9d72e60d Make iostat(8) fully work on crash dumps again (broken since 5.0):
- Pass the address of the variable we are reading to kvm_read() rather
  than the index into the nlist array.
- Properly report errors from kvm_read() which returns -1 on error, not
  0.

MFC after:	3 days
2007-02-06 20:29:40 +00:00
ru
081fcce9b9 Markup fixes. 2006-09-29 17:57:04 +00:00
maxim
aadf63b43a o De-register local vars. 2006-04-16 22:30:24 +00:00
maxim
c4d268bbdb o Trim EOL whitespaces and tabs, replace eight w/s by tabs.
No functional changes.
2006-04-16 22:28:04 +00:00
maxim
c6cab9cc48 o Implement Solaris-like -x flag: show extended disk statistics.
o Implement Solaris-like -z flag: omit lines for devices with no activity.
o iostat.8: describe -x and -z flags, Xr devstat(3), touch .Dd.

PR:		mostly bin/68840, with style changes; bin/73327
Submitted by:	Dan Nelson, Peter Schuller
Obtained from:	NetBSD (a part of man page)
MFC after:	1 month
2006-04-16 22:23:39 +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
1541af42f1 Expand *n't contractions. 2005-02-13 22:25:33 +00:00
ru
c05985f13f Sort sections. 2005-01-18 20:02:45 +00:00
ru
7e3a5665be Put libdevstat before libkvm, because the former depends on the latter. 2004-02-04 10:20:43 +00:00
ken
a69cc262ba Remove MAINTAINER= lines in the makefiles for camcontrol, iostat, libcam
and libdevstat, since the new way of doing things is to just list
maintainership in src/MAINTAINERS.

Also, remove duplicate entries in src/MAINTAINERS for those utilities.  I
already had entries for them.
2003-06-14 05:28:01 +00:00
obrien
a920d12f89 style.Makefile(5) 2003-04-04 17:49:21 +00:00
phk
f432014308 Run a revision of the devstat interface:
Kernel:

Change statistics to use the *uptime() timescale (ie: relative to
boottime) rather than the UTC aligned timescale.  This makes the
device statistics code oblivious to clock steps.

Change timestamps to bintime format, they are cheaper.

Remove the "busy_count", and replace it with two counter fields:
"start_count" and "end_count", which are updated in the down and
up paths respectively.  This removes the locking constraint on
devstat.

Add a timestamp argument to devstat_start_transaction(), this will
normally be a timestamp set by the *_bio() function in bp->bio_t0.
Use this field to calculate duration of I/O operations.

Add two timestamp arguments to devstat_end_transaction(), one is
the current time, a NULL pointer means "take timestamp yourself",
the other is the timestamp of when this transaction started (see
above).

Change calculation of busy_time to operate on "the salami principle":
Only when we are idle, which we can determine by the start+end
counts being identical, do we update the "busy_from" field in the
down path.  In the up path we accumulate the timeslice in busy_time
and update busy_from.

Change the byte_* and num_* fields into two arrays: bytes[] and
operations[].

Userland:

Change the misleading "busy_time" name to be called "snap_time" and
make the time long double since that is what most users need anyway,
fill it using clock_gettime(CLOCK_MONOTONIC) to put it on the same
timescale as the kernel fields.

Change devstat_compute_etime() to operate on struct bintime.

Remove the version 2 legacy interface: the change to bintime makes
compatibility far too expensive.

Fix a bug in systat's "vm" page where boot relative busy times would
be bogus.

Bump __FreeBSD_version to 500107

Review & Collaboration by:	ken
2003-03-15 21:59:06 +00:00
phk
9948f76f41 Add #include <sys/resource.h>
My apologies for missing these #includes, I must have confused the
dependencies with a wrong timestamp or something.
2003-02-16 16:01:52 +00:00
phk
4bfb37f22e Remove #include <sys/dkstat.h> 2003-02-16 14:13:23 +00:00
schweikh
fec6546e12 english(4) police. 2002-12-27 12:15:40 +00:00
trhodes
aa80416521 MFS: Spelling: s/transfered/transferred/
PR:		46104
Pointed out by:	Rich Morin <rdm@cfcl.com>
Approved by:	re (rwatson)
2002-12-12 15:38:07 +00:00
bde
d8025b239f Use essentially the same formatting of the CPU stats percentages as in
vmstat so that they never coalesce.  Both iostat and vmstat need larger
fixes to prevent wide fields from unnecessarily messing up the alignment
of all subsequent fields.

PR:		41674
MFC-after:	3 days
2002-08-18 17:51:14 +00:00
bde
971c6f16e0 Include <nlist.h> for nlist interfaces instead of depending on namespace
pollution in <kvm.h>.
2002-08-18 17:35:55 +00:00
charnier
d2168fe021 The .Nm utility 2002-07-14 14:47:15 +00:00
joe
36c976074e 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
guido
f1bb635905 Redo patch in 1.22 such that the header printing is reset when the
process gets a SIGCONT

Reviewed by:	kris@freebs.org
MFC after:	2 weeks
2001-09-26 19:35:03 +00:00
kris
5c1ab9470b Don't do unsafe activities in the syscall handler.
MFC after:	2 weeks
2001-09-01 07:40:19 +00:00
ken
82ad2929ed Bring in some iostat fixes that bde reminded me about. These fixes were
originally written in January, 2000, but have been substantially updated.

- No longer use hz/stathz and the CPU times in computing the TTY stats,
  but rather use etime, like the disk stats.
- Clean up malloc/realloc failure tests.
- Use a new integrated routine to fetch devstat information via sysctl or
  KVM.
- Get rid of the X() macro for calculating CPU stats
- Use rint() on the CPU state display to avoid truncation errors.  (this
  requires libm)
- Clean up flag usage somewhat.

Reviewed by:	bde
2001-08-23 03:19:54 +00:00
ru
0fc9432133 mdoc(7) police: markup nits. 2001-08-07 13:59:48 +00:00
tmm
fbdd58046b Make use of the new features of libdevstat to allow iostat to work on
crash dumps, and make it use sysctl for all data retrievals in the
"live" case (i.e. when not using iostat on a crash dump).
Remove setgid kmem for the iostat executable, it is not needed any
more after these changes.

Reviewed by:	ken
2001-08-04 18:30:54 +00:00
obrien
9c97c8f02d Perform a major cleanup of the usr.sbin Makefiles.
These are not perfectly in agreement with each other style-wise, but they
are orders of orders of magnitude more consistent style-wise than before.
2001-07-20 06:20:32 +00:00
dd
911ca14c87 Remove whitespace at EOL. 2001-07-15 08:06:20 +00:00
ru
0d5f9334cf mdoc(7) police: removed HISTORY info from the .Os call. 2001-07-10 15:12:08 +00:00
dd
eaa6ee03b8 mdoc(7) police: remove extraneous .Pp before and/or after .Sh. 2001-07-09 09:54:33 +00:00
ru
52a9144c8b Removed -I${.CURDIR}/.../sys from CFLAGS. 2001-05-18 13:41:42 +00:00
ru
afd506414e - Backout botched attempt to introduce MANSECT feature.
- MAN[1-9] -> MAN.
2001-03-26 14:42:20 +00:00
ru
f10dc9aca1 Set the default manual section for usr.sbin/ to 8. 2001-03-20 18:17:26 +00:00
ru
66cd8f698e mdoc(7) police: split punctuation characters + misc fixes. 2001-02-01 16:44:04 +00:00
ru
4bb5f49662 Prepare for mdoc(7)NG. 2000-12-27 15:30:30 +00:00
ru
c23c39b3a4 mdoc(7) police: removed history info from the .Os FreeBSD call. 2000-12-14 11:52:05 +00:00
jedgar
24771a5a3c Properly check malloc(3) return values
Approved by:	ken
2000-12-01 12:02:16 +00:00
ru
71e2293ad4 mdoc(7) police: use the new features of the Nm macro. 2000-11-20 20:10:44 +00:00
asmodai
d086bc9763 Remove bogus include, as per style(9).
Remove unused variable.
2000-04-30 17:05:26 +00:00
charnier
6b7275814f Back out previous commit minus spelling fixes. Should have asked maintainer
before.
2000-01-24 22:08:19 +00:00
charnier
33144f5460 Rework use of Nm.
Remove -? flag that was not working but documented. Make it work instead
but hide it in man page and usage string as others tools do.
Spelling.
Abort on allocation failure (with errx()).
2000-01-23 20:19:34 +00:00
peter
efabb9ccb1 $Id$ -> $FreeBSD$ 1999-08-28 01:35:59 +00:00
mpp
94f5c41121 Various man page cleanup:
- Sort xrefs.
- FreeBSD.ORG -> FreeBSD.org
- Be consistent with section names as outlined in mdoc(7).
- Other misc mdoc cleanup.

PR:		doc/13144
Submitted by:	Alexey M. Zelkin <phantom@cris.net>
1999-08-15 08:47:11 +00:00