> On 10/04/2009 05:21 PM, Daniel Schwager wrote:
> >
> >> How long is this after the 'stop'?
> >>
> > 30 seconds or 2 days ... the process takes CPU all the time
> >
>
> Can you take an oprofile run to see where it's spending its time?
I'm not that familiar with oprofile ...
so, setup with
opcontrol --deinit; modprobe oprofile timer=1; opcontrol --start
gave me the following result:
kvm03:~# opreport
CPU: CPU with timer interrupt, speed 0 MHz (estimated)
Profiling through timer interrupt
TIMER:0|
samples| %|
------------------
613327 95.3150 no-vmlinux
12416 1.9295 qemu-system-x86_64
TIMER:0|
samples| %|
------------------
10888 87.6933 qemu-system-x86_64
209 1.6833 [vdso] (tgid:2164
range:0x7ffff37ff000-0x7ffff3800000)
171 1.3773 [vdso] (tgid:28126
range:0x7fffe7dff000-0x7fffe7e00000)
168 1.3531 [vdso] (tgid:11172
range:0x7ffff67fe000-0x7ffff67ff000)
147 1.1840 [vdso] (tgid:1511
range:0x7fff741fe000-0x7fff741ff000)
143 1.1517 [vdso] (tgid:28327
range:0x7fffdcbfe000-0x7fffdcbff000)
141 1.1356 [vdso] (tgid:17010
range:0x7fff2a1fe000-0x7fff2a1ff000)
127 1.0229 [vdso] (tgid:27527
range:0x7fff2cffe000-0x7fff2cfff000)
111 0.8940 [vdso] (tgid:27644
range:0x7fffec7fe000-0x7fffec7ff000)
92 0.7410 [vdso] (tgid:11565
range:0x7fff247fe000-0x7fff247ff000)
81 0.6524 [vdso] (tgid:27438
range:0x7fff7c3fe000-0x7fff7c3ff000)
76 0.6121 [vdso] (tgid:26857
range:0x7ffffa7fe000-0x7ffffa7ff000)
62 0.4994 [vdso] (tgid:1676
range:0x7fff2f5ff000-0x7fff2f600000)
11488 1.7853 libpthread-2.8.so
....
Try to start without timer=1 hung up my physical machine after daemon is
started:
kvm03:/opt/kvm-86-vnc-patch# opcontrol --deinit; modprobe oprofile ;
opcontrol --start
Stopping profiling.
Killing daemon.
Unloading oprofile module
Using default event: CPU_CLK_UNHALTED:100000:0:1:1
Using 2.6+ OProfile kernel interface.
Using log file /var/lib/oprofile/samples/oprofiled.log
Daemon started.
Could I give you more information ? Should I setup oprofile in another
way ?
regards
Danny
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