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From: "Timothy Normand Miller" <theosib@gmail.com>
To: "Arjan van de Ven" <arjan@infradead.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: HELP: Getting unexpected fakeraid behavior. Fix?
Date: Sun, 6 Jul 2008 17:24:54 -0400	[thread overview]
Message-ID: <9871ee5f0807061424o535c6d7eg3071da6e31e0b58e@mail.gmail.com> (raw)
In-Reply-To: <20080706131937.13065312@infradead.org>

On Sun, Jul 6, 2008 at 4:19 PM, Arjan van de Ven <arjan@infradead.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

  parent reply	other threads:[~2008-07-06 21:25 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-06 20:07 Timothy Normand Miller
2008-07-06 20:19 ` Arjan van de Ven
2008-07-06 20:44   ` Timothy Normand Miller
2008-07-06 21:24   ` Timothy Normand Miller [this message]
2008-07-07  1:22     ` Timothy Normand Miller
2008-07-07  1:26       ` Timothy Normand Miller
2008-07-07  9:57         ` Joseph Fannin
2008-07-07 11:31           ` Timothy Normand Miller

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