DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=message-id:date:from:to:subject:cc:in-reply-to:mime-version
         :content-type:content-transfer-encoding:content-disposition
         :references;
        b=H9ytGno3dFxN7nBh7qqY7Gz2DNX7T1gRVyPmXh1IfpQDpWeTSftm7gIz7YJUMurO8w
         lLRj7NU5I8INPTM6Y9NpBDqCtCoKlmNPaa5taXoBwx7sYhrotQcMmC6wZgSgBWaW3DGm
         hhaZVhuoZKHNwXXZoeYMJrLrzLgyIhQpWwzAY=
Message-ID: <9871ee5f0807061424o535c6d7eg3071da6e31e0b58e@mail.gmail.com>
Date: Sun, 6 Jul 2008 17:24:54 -0400
From: "Timothy Normand Miller" <theosib@gmail.com>
To: "Arjan van de Ven" <arjan@infradead.org>
Subject: Re: HELP: Getting unexpected fakeraid behavior. Fix?
Cc: linux-kernel@vger.kernel.org
In-Reply-To: <20080706131937.13065312@infradead.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <9871ee5f0807061307ncc55104y477c57be3e91b75f@mail.gmail.com>
	 <20080706131937.13065312@infradead.org>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 885
Lines: 27

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/