Date: Tue, 23 Nov 2004 02:00:52 GMT From: Jeff Behl <jbehl@fastclick.com> To: freebsd-bugs@FreeBSD.org Subject: Re: bin/60385: vmstat/iostat/top all fail to report CPU usage(still in 5.3R) Message-ID: <200411230200.iAN20qHT081999@freefall.freebsd.org>
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The following reply was made to PR bin/60385; it has been noted by GNATS.
From: Jeff Behl <jbehl@fastclick.com>
To: Dima Dorfman <dd@freebsd.org>
Cc: freebsd-gnats-submit@freebsd.org, Thomas Novin <thnov@xyz.pp.se>
Subject: Re: bin/60385: vmstat/iostat/top all fail to report CPU usage (still
in 5.3R)
Date: Mon, 22 Nov 2004 17:56:38 -0800
Sorry for the delay. My output is below. It may be a while before I
can try out a patch as were in a little bit of a bind and need the
systems to be up and stable for a while. That, and I only see the
problem pop up sporatically. After a reboot, things seem to work fine
for a seemingly random amount of time. Having said that, not being able
to see my CPU utilization is pretty scary as these machines are under a
decent amount of load. If it's going to help a lot, I may be able to
prioritize and add the patch. Please let me know.
www6# top
last pid: 29362; load averages: 0.07, 0.12, 0.16 up 4+08:04:51
17:45:51
30 processes: 1 running, 29 sleeping
CPU states: 0.0% user, 0.0% nice, 0.0% system, 0.0% interrupt, 0.0%
idle
Mem: 714M Active, 503M Inact, 150M Wired, 32K Cache, 214M Buf, 483M Free
Swap: 4069M Total, 4069M Free
FreeBSD www6.cdn.sjc 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Tue Nov 16
15:41:52 PST 2004 root@www6.cdn.sjc:/usr/obj/usr/src/sys/SMP amd64
www6# sysctl kern.clockrate
kern.clockrate: { hz = 1024, tick = 976, profhz = 1024, stathz = 128 }
www6# sysctl kern.timecounter
kern.timecounter.tick: 1
kern.timecounter.choice: TSC(-100) ACPI-fast(1000) i8254(0) dummy(-1000000)
kern.timecounter.hardware: ACPI-fast
kern.timecounter.nsetclock: 6
kern.timecounter.ngetmicrotime: 38349140
kern.timecounter.ngetnanotime: 0
kern.timecounter.ngetbintime: 0
kern.timecounter.ngetmicrouptime: 209761019
kern.timecounter.ngetnanouptime: 16567
kern.timecounter.ngetbinuptime: 0
kern.timecounter.nmicrotime: 249915960
kern.timecounter.nnanotime: 20037
kern.timecounter.nbintime: 249935822
kern.timecounter.nmicrouptime: 29418
kern.timecounter.nnanouptime: 0
kern.timecounter.nbinuptime: 1939815878
kern.timecounter.stepwarnings: 0
kern.timecounter.smp_tsc: 0
www6#
www6# sysctl vm.loadavg
vm.loadavg: { 0.09 0.12 0.17 }
www6# fgrep Timecounter /var/run/dmesg.boot
Timecounter "i8254" frequency 1193182 Hz quality 0
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
Timecounters tick every 0.976 msec
www6# sysctl kern.cp_time && sleep 5 && sysctl kern.cp_time && sleep 5 && !!
sysctl kern.cp_time && sleep 5 && sysctl kern.cp_time && sleep 5 &&
sysctl kern.cp_time && sleep 5 && sysctl kern.cp_time && sleep 5
kern.cp_time: 732270 104 925106 790100 90108268
kern.cp_time: 732270 104 925106 790100 90108268
kern.cp_time: 732270 104 925106 790100 90108268
kern.cp_time: 732270 104 925106 790100 90108268
www6# /usr/bin/time ls -R > /dev/null
0.00 real 0.00 user 0.00 sys
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