Ok, I could not resist giving it a try, screw my bed ;)
Mike, bingo! That one hit home. With acpi-user-options set to 0x08 and
subsequent reboot cpu load is back to normal (that is load average=0.05).
I'll run my diagnostics again on my system and post the results in case
anyone is interested comparing the numbers. But that will really have to
wait for tomorrow ;)
Big thanks to all of you, you guys have been amazing! Your help is very
much appreciated :)
Regards,
Gernot Wolf
Am 20.10.11 21:55, schrieb Michael Stapleton:
Probably just too big.
Are there any ACPI settings in the BIOS?
or we can try to change ACPI in OI.
#man eeprom
.
.
.
OPERANDS
x86 Only
acpi-user-options
A configuration variable that controls the use of
Advanced Configuration and Power Interface (ACPI), a
power management specification. The acceptable values
for this variable depend on the release of the Solaris
operating system you are using.
For all releases of Solaris 10 and Solaris 11, a value
of of 0x0 means that there will be an attempt to use
ACPI if it is available on the system. A value of 0x2
disables the use of ACPI.
For the Solaris 10 1/06 release, a value of 0x8 means
that there will be an attempt to use ACPI in a mode com-
patible with previous releases of Solaris 10 if it is
available on the system. The default for Solaris 10 1/06
is 0x8.
For releases of Solaris 10 after the 1/06 release and
for Solaris 11, the default is 0x0.
Most users can safely accept the default value, which
enables ACPI if available. If issues related to the use
of ACPI are suspected on releases of Solaris after
Solaris 1/06, it is suggested to first try a value of
0x8 and then, if you do not obtain satisfactory results,
0x02.
Want to try:
#eeprom acpi-user-options=0x8
# init 6
?
If you have booting problems after changes, the following link will
help:
Boot Arguments You Can Specify When Editing the GRUB Menu at Boot Time
-B acpi-user-options=0x2
Disables ACPI entirely.
http://dlc.sun.com/osol/docs/content/SYSADV1/getov.html
Mike
On Thu, 2011-10-20 at 21:37 +0200, Gernot Wolf wrote:
Ok, for some reason this attachement refuses to go out :( Have to figure
that out...
Regards,
Gernot Wolf
Am 20.10.11 21:20, schrieb Gernot Wolf:
Ooops, something went wrong with my attachement. I'll try again...
Regards,
Gernot Wolf
Am 20.10.11 21:09, schrieb Gernot Wolf:
You mean, besides being quite huge? I took a quick look at it, but other
than getting a headache by doing that, my limited unix skills
unfortunately fail me.
I've zipped it an attached it to this mail, maybe someone can get
anything out of it...
Regards,
Gernot
Am 20.10.11 20:17, schrieb Michael Schuster:
Gernot,
is there anything suspicious in /var/adm/messages?
Michael
On Thu, Oct 20, 2011 at 20:07, Michael Stapleton
<michael.staple...@techsologic.com> wrote:
That rules out userland.
Sched tells me that it is not a user process. If kernel code is
executing on a cpu, tools will report the sched process. The count was
how many times the process was taken off the CPU while dtrace was
running.
Lets see what kernel code is running the most:
#dtrace -n 'sched:::off-cpu { @[stack()]=count()}'
#dtrace -n 'profile-1001 { @[stack()] = count() }'
On Thu, 2011-10-20 at 19:52 +0200, Gernot Wolf wrote:
Yeah, I've been able to run this diagnostics on another OI box (at my
office, so much for OI not being used in production ;)), and noticed
that there were several values that were quite different. I just don't
have any idea on the meaning of this figures...
Anyway, here are the results of the dtrace command (I executed the
command twice, hence two result sets):
gernot@tintenfass:~# dtrace -n 'sched:::off-cpu {
@[execname]=count()}'
dtrace: description 'sched:::off-cpu ' matched 3 probes
^C
ipmgmtd 1
gconfd-2 2
gnome-settings-d 2
idmapd 2
inetd 2
miniserv.pl 2
netcfgd 2
nscd 2
ospm-applet 2
ssh-agent 2
sshd 2
svc.startd 2
intrd 3
afpd 4
mdnsd 4
gnome-power-mana 5
clock-applet 7
sendmail 7
xscreensaver 7
fmd 9
fsflush 11
ntpd 11
updatemanagernot 13
isapython2.6 14
devfsadm 20
gnome-terminal 20
dtrace 23
mixer_applet2 25
smbd 39
nwam-manager 60
svc.configd 79
Xorg 100
sched 394078
gernot@tintenfass:~# dtrace -n 'sched:::off-cpu {
@[execname]=count()}'
dtrace: description 'sched:::off-cpu ' matched 3 probes
^C
automountd 1
ipmgmtd 1
idmapd 2
in.routed 2
init 2
miniserv.pl 2
netcfgd 2
ssh-agent 2
sshd 2
svc.startd 2
fmd 3
hald 3
inetd 3
intrd 3
hald-addon-acpi 4
nscd 4
gnome-power-mana 5
sendmail 5
mdnsd 6
devfsadm 8
xscreensaver 9
fsflush 10
ntpd 14
updatemanagernot 16
mixer_applet2 21
isapython2.6 22
dtrace 24
gnome-terminal 24
smbd 39
nwam-manager 58
zpool-rpool 65
svc.configd 79
Xorg 82
sched 369939
So, quite obviously there is one executable standing out here,
"sched",
now what's the meaning of this figures?
Regards,
Gernot Wolf
Am 20.10.11 19:22, schrieb Michael Stapleton:
Hi Gernot,
You have a high context switch rate.
try
#dtrace -n 'sched:::off-cpu { @[execname]=count()}'
For a few seconds to see if you can get the name of and executable.
Mike
On Thu, 2011-10-20 at 18:44 +0200, Gernot Wolf wrote:
Hello all,
I have a machine here at my home running OpenIndiana oi_151a, which
serves as a NAS on my home network. The original install was
OpenSolaris
2009.6 which was later upgraded to snv_134b, and recently to
oi_151a.
So far this OSOL (now OI) box has performed excellently, with one
major
exception: Sometimes, after a reboot, the cpu load was about 50-60%,
although the system was doing nothing. Until recently, another
reboot
solved the issue.
This does not work any longer. The system has always a cpu load of
50-60% when idle (and higher of course when there is actually some
work
to do).
I've already googled the symptoms. This didn't turn up very much
useful
info, and the few things I found didn't apply to my problem. Most
noticably was this problem which could be solved by disabling
cpupm in
/etc/power.conf, but trying that didn't show any effect on my
system.
So I'm finally out of my depth. I have to admit that my knowledge of
Unix is superficial at best, so I decided to try looking for help
here.
I've run several diagnostic commands like top, powertop, lockstat
etc.
and attached the results to this email (I've zipped the results of
kstat
because they were>1MB).
One important thing is that when I boot into the oi_151a live dvd
instead of booting into the installed system, I also get the high
cpu
load. I mention this because I have installed several things on
my OI
box like vsftpd, svn, netstat etc. I first thought that this problem
might be caused by some of this extra stuff, but getting the same
system
when booting the live dvd ruled that out (I think).
The machine is a custom build medium tower:
S-775 Intel DG965WHMKR ATX mainbord
Intel Core 2 Duo E4300 CPU 1.8GHz
1x IDE DVD recorder
1x IDE HD 200GB (serves as system drive)
6x SATA II 1.5TB HD (configured as zfs raidz2 array)
I have to solve this problem. Although the system runs fine and
absolutely serves it's purpose, having the cpu at 50-60% load
constantly
is a waste of energy and surely a rather unhealthy stress on the
hardware.
Anyone any ideas...?
Regards,
Gernot Wolf
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