linux-kernel - Re: HELP: Getting unexpected fakeraid behavior. Fix?

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Message-ID: <9871ee5f0807061424o535c6d7eg3071da6e31e0b58e@mail.gmail.com>
Date:	Sun, 6 Jul 2008 17:24:54 -0400
From:	"Timothy Normand Miller" <theosib@...il.com>
To:	"Arjan van de Ven" <arjan@...radead.org>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: HELP: Getting unexpected fakeraid behavior. Fix?

On Sun, Jul 6, 2008 at 4:19 PM, Arjan van de Ven <arjan@...radead.org> wrote:

> if your application is single threaded this isn't totally unexpected as
> a result...

Ok, I've rewritten the program to use multiple threads.  There is a
bzcat process that's sequentially reading a large file, and then
there's another process with four threads that is reading lots of
small files with a lot of random access.  All threads are constrained
by the disk (CPU load is low).

I'm still seeing absolutely NO reads from the second disk.

Any ideas?

Thanks.

-- 
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Open Graphics Project
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