--On Tuesday, June 07, 2005 17:08:53 -0700 Andrew Morton <[email protected]> wrote:
> Christoph Lameter <[email protected]> wrote:
>>
>> On Tue, 7 Jun 2005, Andrew Morton wrote:
>>
>> > > Diffprofile is wacko (HZ seems to be defaulting to 250 in -mm).
>> >
>> > Oh crap, so it does. That's wrong.
>>
>> Email by you and Linus indicated that 250 should be the default.
>
> Oh, OK. hrm.
>
> Martin, it would be useful if you could determine whether the kernbench
> slowdown was due to the 1000Hz->250Hz change, thanks.
>
> I'm assuming it was the CPU scheduler patches. There are 36 of them ;)
Backed them all out ... performance thunks down to earth again, and is actually
the best I've seen it ever (probably 250Hz is helping, I used to run 100 in
-mjb for better benefit).
the +5081 item is the one to look at
http://ftp.kernel.org/pub/linux/kernel/people/mbligh/abat/perf/kernbench.moe.png
Patch I used was here:
http://ftp.kernel.org/pub/linux/kernel/people/mbligh/abat/patches/nosched
But it was just everything under the "CPU scheduler" section of your series
file.
M.
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