On Tue, 2009-08-11 at 14:56, Scott Lawson wrote:

> > Also, is atime on?
> Turning atime off may make a big difference for you. It certainly does 
> for Sun Messaging server.
> Maybe worth doing and reposting result?
Yes. All these results were attained with atime=off. We made that change
on all the filesystems this spring.

I'd like tho thank everyone who took part in this thread. Its helped us
quite a bit. 
I'll be re-reading this thread a few times to glean additional
recommendations I missed the first time. Not to mention doing some
additional testing.

We shall also look at tuning the DNLC on our production server.

I also did some stress testing using tar and large files and saw a
sustained read rate of between 100MB and 120MB per second running 5
concurrent tar's.

-- 
Ed 


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