On Tue, 30 Jan 2007, Tom Burns wrote:
> That would be great if you could find that patch - I can worry about
> porting it to the current kernel. We're having an issue where our
> device, while routing large amounts of network traffic, reports 0% CPU
> utilisation when it cannot be the case, and I think this is the cause.
Here is one patch for CPU cycle accounting: (although I'm not sure that's
really the one I had in mind)
http://lkml.org/lkml/2004/6/23/78
It might also be worth having a look at oprofile:
http://oprofile.sourceforge.net/
If you are on IA64 or PPC rather than i386, ppacc might help you:
http://lkml.org/lkml/2006/1/13/308
http://ppacc.sourceforge.net/about.html
Although I'd guess you are not on PPC or S390 as these already to correct
CPU cycle accounting (IIRC).
Hope that helps,
Tim
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