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Re: IVOPT improvement patch
What is the build configuration?
On Wed, Jul 28, 2010 at 6:07 PM, H.J. Lu <email@example.com> wrote:
> On Tue, Jul 27, 2010 at 1:20 PM, Xinliang David Li <firstname.lastname@example.org> wrote:
>> On Tue, Jul 27, 2010 at 12:57 PM, Pat Haugen <email@example.com> wrote:
>>>> Thanks Sebatian for testing it out. I also asked Pat to help testing
>>>> the patch again on powerpc. I will first split off the unrelated
>>>> patches and submit them first (e.g, multiple exit loop handling etc).
>>> There were 2 good improvements on PowerPC, the rest were pretty much a wash
>>> (< +/-2%):
>>> 410.bwaves ? ? ?10.0%
>>> 434.zeusmp ? ? ?6.6%
>>> One thing I did notice however is that comparing these results to the run I
>>> did back in May on an earlier version of the patch is that both
>>> improvements dropped. bwaves was 27% on that run and zeusmp was 8.4%. I
>>> don't have the old builds around, but could recreate if you're not aware of
>>> anything to explain the drop.
>> Thanks. I will check in this version first and do some triaging on the
>> performance drop (with your help). ?One thing to be aware is that
>> r161844 was checked in during this period of time which might be
>> related, but not sure until further investigation -- the two stage
>> initial iv set computation introduced by the patch may not be needed
>> (if this patch is in).
> Your checkin caused: