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Re: More info on tuning...

To: Andrew Klaassen <ak@xxxxxxx>
Subject: Re: More info on tuning...
From: Roy Sigurd Karlsbakk <roy@xxxxxxxxxxxxx>
Date: Tue, 13 Nov 2001 18:02:38 +0100 (CET)
Cc: XFS Mailing list <linux-xfs@xxxxxxxxxxx>
In-reply-to: <20011113114026.C3965@xxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
> So... would too much time spent seeking from blocks in one
> streamed file to blocks in another to blocks in another be the
> problem?  Would it (theoretically, at least) be better to have
> >10 different disks/arrays, one for each file being streamed, so
> that the array doesn't have to jump all over the place seeking
> blocks from different files?

Sure. In a perfect world etc... :-) Still, the problem is the possibllity
of two clients downloading the same file at differnet times, and then more
jumps.

Still. I can't get the hardware running fast at all. I get <= 40MB/s in a
'dd if=large-file of=/dev/null bs=262144', and that's from a RAID-0 with 5
18GB 10k SCSI-3 drives...

--
Roy Sigurd Karlsbakk, MCSE, MCNE, CLS, LCA

Computers are like air conditioners.
They stop working when you open Windows.


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