Andrew Morton wrote on Wednesday, January 03, 2007 12:09 AM
> Do you have any benchmarks which got faster with these changes?
Jens Axboe wrote on Wednesday, January 03, 2007 12:22 AM
> I've asked Ken to run this series on some of his big iron, I hope he'll
> have some results for us soonish. I can run some pseudo benchmarks on a
> 4-way here with some simulated storage to demonstrate the locking
> improvements.
> Jens Axboe wrote on Thursday, January 04, 2007 6:39 AM
> > I will just retake the tip of your plug tree and retest.
>
> That would be great! There's a busy race fixed in the current branch,
> make sure that one is included as well.
Good news: the tip of plug tree fixed the FC loop reset issue we are
seeing earlier.
Performance wise, our big db benchmark run came out with 0.14% regression
compare to 2.6.20-rc2. It is small enough that we declared it as noise
level change. Unfortunately our internal profile tool broke on 2.6.20-rc2
so I don't have an execution profile to post.
- Ken
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