interesting(?) data on network interrupt servicing

Scott Long scottl at samsco.org
Thu Mar 23 14:50:39 UTC 2006


Luigi Rizzo wrote:
> On Thu, Mar 23, 2006 at 07:42:16AM -0700, Scott Long wrote:
> 
>>Luigi Rizzo wrote:
>>
>>>On Thu, Mar 23, 2006 at 03:25:18PM +0100, Paolo Pisati wrote:
> 
> ...
> 
>>>>ok, i updated my CURRENT and rerun the tests (and while here 
>>>>i disabled SMP):
>>>>
>>>>phk's optimization to cpu ticks calculation shaved 4k ticks,
>>>
>>>this makes it a very good candidate for MFC when 6.1 is out ?
> 
> ...
> 
>>I haven't been paying close enough attention, have all of the calcru
>>problems and other side effects been fixed from phk's work?
> 
> 
> we should ask phk. As far as i remember the only "problem"
> is/was that the sys/user times are computed as if the
> cpu were running at its max speed. But this is in fact
> a good thing because it is a more consistent measurement of
> the cost of the CPU work, which decouples us from having
> to take care of variable cpu speed.
> 
> luigi

No, I'm talking about all of the resulting problems with processes
generating calcru messages on the console.

Scott



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