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SubjectRe: [patch] Re: scheduler oddity [bug?]
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On Mon, 2009-03-09 at 15:11 +0100, Mike Galbraith wrote:

> > Yes 2* worked fine. Mysql+oltp was my worry spot, being a very affinity
> > sensitive little <bleep>, but my patchlet didn't cause any trouble, so
> > this one shouldn't either. I'll do some re-test in any case, and squeak
> > should anything turn up.
>
> Squeak! Didn't even get to mysql+oltp.
>
> marge:..local/tmp # netperf -t UDP_STREAM -l 60 -H 127.0.0.1 -- -P 15888,12384 -s 32768 -S 32768 -m 4096
> UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 15888 AF_INET to 127.0.0.1 (127.0.0.1) port 12384 AF_INET
> Socket Message Elapsed Messages
> Size Size Time Okay Errors Throughput
> bytes bytes secs # # 10^6bits/sec
>
> 65536 4096 60.00 5161103 0 2818.65
> 65536 60.00 5149666 2812.40
>
> 6188 root 20 0 1040 544 324 R 100 0.0 0:31.49 0 netperf
> 6189 root 20 0 1044 260 164 R 48 0.0 0:15.35 3 netserver
>
> Hurt, pain, ouch, vs...
>
> marge:..local/tmp # netperf -t UDP_STREAM -l 60 -H 127.0.0.1 -T 0,0 -- -P 15888,12384 -s 32768 -S 32768 -m 4096
> UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 15888 AF_INET to 127.0.0.1 (127.0.0.1) port 12384 AF_INET : cpu bind
> Socket Message Elapsed Messages
> Size Size Time Okay Errors Throughput
> bytes bytes secs # # 10^6bits/sec
>
> 65536 4096 60.00 8452028 0 4615.93
> 65536 60.00 8442945 4610.97
>
> Drat.

Bugger, so back to the drawing board it is...



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