Re: NFS client (10x) performance regression 2.6.14.7 -> 2.6.15

From: Trond Myklebust
Date: Mon Apr 03 2006 - 11:42:09 EST


On Mon, 2006-04-03 at 17:26 +0200, Jakob Oestergaard wrote:
> I've run a git bisect from 2.6.14 to 2.6.15 to find what broke the NFS
> client.
>
> It seems to be the GIT patch: 24aa1fe6779eaddb3e0b1b802585dcf6faf9cc44
> that introduces the problem.
>
> Trond, it took me a lot of tries with GIT to narrow this down, because
> the problem does not show up consistently. Some times nfsbench would
> complete very quickly, but then a second (or third or ...) run would run
> slow.
>
> Could I ask you to try:
> for i in `seq 1 100`; do time ./nfsbench; done
> or something like that?

OK. Thanks for helping narrow this down! I'm travelling right now, so I
can't promise that I'll be able to run any tests until tomorrow. I'll
have a look, though.

Cheers,
Trond

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