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SubjectRe: [patch] voluntary-preempt-
Lee Revell wrote:
> On Sat, 2004-08-21 at 10:05, Ingo Molnar wrote:
>>i've uploaded the -P7 patch:
>>Changes since -P6:
>>- fixed the XFree86/ context-switch latency. (let me know if you
>> see any weirdness like X not starting up while it did before.)
>>- halved the pagevec size, to reduce the radix gang-lookup costs.
> Great, this is a significant improvement. Most of the worst case
> latencies (~150 usec) seem related to the TCP stack now, and a minor one
> (51 usec) in the ext3 journaling:
> Lee

I just posted a similar trace of ~4141 usec from P6 here:

This was part of a run from yesterday evening. After just rebooting, I
too am seeing several of these. With the system not being hammered by
the stress tests though, the max is only up to ~103 usec. I will be
updating to P7 shortly.


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