From: Jamie Lokier <jamie@shareable.org>
To: Christoph Hellwig <hch@lst.de>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 0/2] native Linux AIO support revisited
Date: Thu, 20 Aug 2009 20:06:53 +0100 [thread overview]
Message-ID: <20090820190653.GC6066@shareable.org> (raw)
In-Reply-To: <20090820145803.GA23578@lst.de>
Christoph Hellwig wrote:
> The IO code performs slightly better than the thread pool on most
> workloads I've thrown at it, and uses a lot less CPU time for it:
That's interesting. I was under the impression that over on
linux-aio@kvack.org and on here, some measurements had already been
done showing that threaded AIO wasn't much worse than Linux AIO or
perhaps better, and therefore might as well be used.
Guess I misunderstood something.
-- Jamie
next prev parent reply other threads:[~2009-08-20 19:07 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-20 14:58 [Qemu-devel] [PATCH 0/2] native Linux AIO support revisited Christoph Hellwig
2009-08-20 14:58 ` [Qemu-devel] [PATCH 1/2] raw-posix: refactor AIO support Christoph Hellwig
2009-08-20 14:58 ` [Qemu-devel] [PATCH 2/2] raw-posix: add Linux native " Christoph Hellwig
2009-08-21 9:53 ` Avi Kivity
2009-08-21 14:48 ` Christoph Hellwig
2009-08-21 15:35 ` Avi Kivity
2009-08-20 19:06 ` Jamie Lokier [this message]
2009-08-21 7:40 ` [Qemu-devel] [PATCH 0/2] native Linux AIO support revisited Avi Kivity
2009-08-21 14:50 ` Christoph Hellwig
2009-08-21 15:38 ` Avi Kivity
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090820190653.GC6066@shareable.org \
--to=jamie@shareable.org \
--cc=hch@lst.de \
--cc=qemu-devel@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).