Messages in this thread |  | | Date | Sat, 21 Aug 2004 19:06:30 -0500 | From | "K.R. Foley" <> | Subject | Re: [patch] voluntary-preempt-2.6.8.1-P7 |
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Lee Revell wrote: > On Sat, 2004-08-21 at 10:05, Ingo Molnar wrote: > >>i've uploaded the -P7 patch: >> >> http://redhat.com/~mingo/voluntary-preempt/voluntary-preempt-2.6.8.1-P7 >> >>Changes since -P6: >> >>- fixed the XFree86/X.org 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: > > http://krustophenia.net/testresults.php?dataset=2.6.8.1-P7 > > Lee >
I just posted a similar trace of ~4141 usec from P6 here:
http://www.cybsft.com/testresults/2.6.8.1-P6/latency-trace1.txt
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.
kr
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