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* MFC r292019asomers2016-01-111-2/+57
| | | | | | | When iostat(8) receives SIGINT while running with "-w" or "-c", it will now print statistics one more time before exiting. Also, it now implements the wait using setitimer instead of sleep, so the waits will be more consistent when the system is heavily loaded.
* MFC r283285:trasz2015-06-211-1/+2
| | | | | | Advertise ctlstat(8) a little better. Sponsored by: The FreeBSD Foundation
* Change `iostat -Ix` to display total duration of transactions insteadtrociny2012-12-152-13/+42
| | | | | | | | | | | of average duration, and total busy time instead of %. This looks more useful when one runs `iostat -Ix` periodically to collect statistics: e.g. now it is possible to calculate busy % between two runs subtracting total busy times and dividing per time period. Average duration and % busy are still available via `iostat -x`.
* In usr.sbin/iostat/iostat.c, use printf format specifiers fromdim2011-12-171-8/+9
| | | | | | inttypes.h for u_int64_t's. While here, sort #include directives. MFC after: 1 week
* Remove the advertising clause from UCB copyrighted files in usr.sbin. Thisjoel2010-12-112-8/+0
| | | | | is in accordance with the information provided at ftp://ftp.cs.berkeley.edu/pub/4bsd/README.Impt.License.Change
* Clarify a few details about iostat(8) behavior:yar2010-11-241-2/+16
| | | | | | | | | | | | - The default repeat count for iostat(8) is 1 unless there was a -w on the command line. - A -x display doesn't include TTY or CPU stats by default but they can be turned on with a -T or -C, respectively. Submitted by: arundel (initial version) Reviewed by: arundel MFC after: 1 week
* Change "wait" banner to "qlen" to be more indicative of its purpose and toivoras2010-11-172-3/+3
| | | | | | | be more inline with what gstat uses. Reviewed by: gnn Silence from: phk, keramida
* Clean up the style and markup of the paragraph on fractional wait intervals.yar2010-08-071-4/+6
| | | | MFC after: 3 days
* Properly spell and mark up the name of kern.hz.yar2010-08-071-2/+3
| | | | MFC after: 3 days
* Move the sentences telling the defaults for -c and -wyar2010-08-071-6/+6
| | | | | | | to where they belong. Previously they were misplaced, i.e., swapped. MFC after: 3 days
* Cleanup manpage as suggested by jhb@ to start new sentences on a new line.sbruno2010-05-241-3/+3
| | | | MFC after: 2 Weeks
* Explain how the new sub-second interval from changeset:208389 works.sbruno2010-05-231-1/+8
| | | | | | Approved by: scottl(mentor) Obtained from: Yahoo Inc. MFC after: 2 weeks
* Allow sub-second interval timings for iostat and vmstat.sbruno2010-05-212-6/+12
| | | | | | | | | | | e.g. vmstat -w.5 iostat -w.5 Reviewed by: jhb Approved by: scottl (mentor) Obtained from: Yahoo Inc. MFC after: 2 weeks
* The last big commit: let usr.sbin/ use WARNS=6 by default.ed2010-01-021-0/+2
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* iostat: add a bit of space between tty in/out columnskeramida2009-08-151-6/+6
| | | | | | | | | The columns for tty input and output may bump against each other if the tty output needs more than 5 columns. Add a bit of space that pushes everything 1 column to the right, but also avoids the problem. Approved by: re (rwatson)
* Use calloc().delphij2009-05-211-7/+4
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* Fix the device name spacing.adrian2008-09-111-5/+5
| | | | | | | | The old logic padded the device name out but assumed the unit number was one digit long; this fails for things like SATA devices which (for me) begin at ad10. Assemble the full device name in a temporary buffer and then calcluate padding based on that string.
* Use kvm_getcptime(3) to fetch the global CPU time stats from a crashdumpjhb2008-08-191-8/+14
| | | | | | | since the 'cp_time' symbol doesn't exist in recent kernels. This fixes iostat and vmstat on crash dumps. MFC after: 1 week
* Pass the right pointer to bzero() when clearing cp_time.jhb2008-08-191-1/+1
| | | | MFC after: 1 week
* Repeat iostat header after rows-3 instead of a hardcoded 20.keramida2008-01-221-3/+71
| | | | | | | | | | | | | 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
* o Fix a typo. errx() -> err().maxim2008-01-121-2/+2
| | | | Submitted by: das
* o Plug a memory leak: do not forget to free asprintf(3) allocatedmaxim2008-01-121-2/+4
| | | | | | | | memory. PR: bin/119608 Submitted by: peter.schuller MFC after: 1 week
* o Get missed "%" in output back.maxim2007-12-161-2/+2
| | | | | Submitted by: sem MFC after: 1 week
* o With -x switch do not pay attention at the hardcoded limit of 3 ↵maxim2007-08-031-5/+7
| | | | | | | | | 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
* o Re-indent long lines.maxim2007-05-141-6/+6
| | | | Style(9) wisdom from: bde
* o Fix several style bugs in the previous commit.maxim2007-05-121-7/+15
| | | | Prodded by: bde
* o Make iostat -Ix work: print per-interval I/O extended statistics.maxim2007-05-121-7/+25
| | | | | | PR: bin/112559 Submitted by: Dan Nelson MFC after: 2 weeks
* Make iostat(8) fully work on crash dumps again (broken since 5.0):jhb2007-02-061-5/+6
| | | | | | | | | - 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
* Markup fixes.ru2006-09-291-1/+1
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* o De-register local vars.maxim2006-04-161-6/+4
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* o Trim EOL whitespaces and tabs, replace eight w/s by tabs.maxim2006-04-161-20/+20
| | | | No functional changes.
* o Implement Solaris-like -x flag: show extended disk statistics.maxim2006-04-162-15/+136
| | | | | | | | | | 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
* Interlink systat(1), iostat(8) and vmstat(8) through their SEE ALSOkeramida2005-05-261-0/+1
| | | | sections, so that users of one can learn about the others easily.
* Expand *n't contractions.ru2005-02-131-1/+1
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* Sort sections.ru2005-01-181-2/+2
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* Put libdevstat before libkvm, because the former depends on the latter.ru2004-02-041-2/+2
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* Remove MAINTAINER= lines in the makefiles for camcontrol, iostat, libcamken2003-06-141-2/+0
| | | | | | | | 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.
* style.Makefile(5)obrien2003-04-041-1/+2
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* Run a revision of the devstat interface:phk2003-03-151-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* Add #include <sys/resource.h>phk2003-02-161-0/+1
| | | | | My apologies for missing these #includes, I must have confused the dependencies with a wrong timestamp or something.
* Remove #include <sys/dkstat.h>phk2003-02-161-1/+0
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* english(4) police.schweikh2002-12-271-4/+4
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* MFS: Spelling: s/transfered/transferred/trhodes2002-12-121-1/+1
| | | | | | PR: 46104 Pointed out by: Rich Morin <rdm@cfcl.com> Approved by: re (rwatson)
* Use essentially the same formatting of the CPU stats percentages as inbde2002-08-181-1/+1
| | | | | | | | | 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
* Include <nlist.h> for nlist interfaces instead of depending on namespacebde2002-08-181-0/+1
| | | | pollution in <kvm.h>.
* The .Nm utilitycharnier2002-07-141-5/+12
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* Replace /kernel with /boot/kernel/kernel.joe2002-05-091-3/+3
| | | | | PR: docs/37757 Submitted by: Hiten Pandya <hiten@uk.FreeBSD.org>
* Redo patch in 1.22 such that the header printing is reset when theguido2001-09-261-19/+16
| | | | | | | process gets a SIGCONT Reviewed by: kris@freebs.org MFC after: 2 weeks
* Don't do unsafe activities in the syscall handler.kris2001-09-011-4/+18
| | | | MFC after: 2 weeks
* Bring in some iostat fixes that bde reminded me about. These fixes wereken2001-08-232-95/+125
| | | | | | | | | | | | | | | | 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
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