Messages in this thread | | | Date | Tue, 2 Nov 2010 16:45:13 +0100 (CET) | From | Ian Kumlien <> | Subject | Re: High [extra timer interrupt] count in powertop since 2.6.36 |
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On Mon, 1 Nov 2010, Jeremy Fitzhardinge wrote:
> On 10/30/2010 07:52 PM, Ian Kumlien wrote: >> Hi, >> >> I have been searching the list for anyone else seeing this, >> but i haven't found anything yet - Any ideas on how to debug? >> >> From powertop: >> Top causes for wakeups: >> 84.7% (1673.3) [extra timer interrupt] >> >> Thats a little bit high in my opinion, for some reason it seems to be >> ignored since the actual number of wakeups seems to be ~367 or so. >> >> Ideas? Suggestions? > > I'm not sure, but I'm seeing something similar.
using powertop: 1.13
< Detailed C-state information is not P-states (frequencies) 3.21 Ghz 6.0% 2.40 Ghz 0.0% 1.60 Ghz 0.1% 800 Mhz 93.9%
Wakeups-from-idle per second : 441.8 interval: 10.0s no ACPI power usage estimate available
Top causes for wakeups: 84.3% (2132.0) [extra timer interrupt] 8.1% (205.4) qemu-system-x86 2.4% ( 61.0) [eth1] <interrupt> 1.2% ( 31.1) [eth0] <interrupt> 1.2% ( 29.3) java 1.0% ( 26.3) [ahci] <interrupt> 0.5% ( 13.0) [sky2@pci:0000:05:00.0] <interrupt> 0.5% ( 12.0) kworker/u:2 ...
Has any output been changed, is this just a missenterpetation done by powertop?
CPU: AMD Phenom(tm) II X6 1090T Processor
> J > >
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