linux-kernel - Re: raid io requests not parallel?

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Message-Id: <1153012032.3033.0.camel@laptopd505.fenrus.org>
Date:	Sun, 16 Jul 2006 03:07:12 +0200
From:	Arjan van de Ven <arjan@...radead.org>
To:	Jonathan Baccash <jbaccash@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: raid io requests not parallel?

> So.... why doesn't the raid issue the writes in parallel? 

because you use O_DIRECT, which means your application waits for the
write to hit the disk before doing the next write ;)

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