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SubjectRe: oltp ~10% regression with 2.6.27-rc5 on stoakley machine
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On Thu, 2008-09-04 at 13:35 +0200, Ingo Molnar wrote:
> * Lin Ming <ming.m.lin@intel.com> wrote:
>
> > A huge trace result file, see the attachment for more.
>
> > # tracer: sched_switch
> > #
> > # TASK-PID CPU# TIMESTAMP FUNCTION
> > # | | | | |
> > mysqld-3799 [07] 151.411009: 3799:120:R ==> 3807:120:R
> ...
> > sysbench-3803 [07] 151.417048: 3803:120:R + 3791:120:S
>
> ok, this only spans 6 milliseconds, which is probably a bit too light.
>
> Could you please increase the trace size 32-fold (via
> /debug/tracing/trace_entries), and send us the (large!) trace file
> compressed via bzip2 -9, off-list (or via a web link)? [anyone on-list
> can have a look at the smaller trace file already]

The large trace file also available at below link,
http://myfreefilehosting.com/f/94991018dc_1.31MB

>
> Thanks,
>
> Ingo



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