From: Benjamin LaHaise <bcrl@kvack.org>
To: Kenny Simpson <theonetruekenny@yahoo.com>
Cc: linux kernel <linux-kernel@vger.kernel.org>
Subject: Re: Is user-space AIO dead?
Date: Wed, 11 Jan 2006 13:41:12 -0500 [thread overview]
Message-ID: <20060111184112.GA21922@kvack.org> (raw)
In-Reply-To: <20060111181252.61498.qmail@web34103.mail.mud.yahoo.com>
On Wed, Jan 11, 2006 at 10:12:52AM -0800, Kenny Simpson wrote:
> If I want a transactional engine (like a database) that needs to persist to stable storage, is it
> still best to use a helper thread to do write/fsync or O_SYNC|O_DIRECT?
It all depends on which database engine you're using. Getting Oracle
tuned to the Linux AIO implementation took a few revisions, but what's
out in the fields these days makes good use of aio to gain 10-15% on
the usual large industry standard database benchmark.
-ben
--
"You know, I've seen some crystals do some pretty trippy shit, man."
Don't Email: <dont@kvack.org>.
next prev parent reply other threads:[~2006-01-11 18:45 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-11 18:12 Is user-space AIO dead? Kenny Simpson
2006-01-11 18:20 ` Marcin Dalecki
2006-01-11 18:23 ` David Lloyd
2006-01-11 18:45 ` Kenny Simpson
2006-01-11 19:10 ` David Lloyd
2006-01-11 19:20 ` Kenny Simpson
2006-01-11 20:31 ` Phillip Susi
2006-01-11 22:02 ` Kenny Simpson
2006-01-12 3:50 ` Phillip Susi
2006-01-12 4:14 ` Phillip Susi
2006-01-11 18:41 ` Benjamin LaHaise [this message]
2006-01-11 18:54 ` Kenny Simpson
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