From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [5323] Implement an fd pool to get real AIO with posix-aio
Date: Tue, 07 Oct 2008 22:40:18 +0200 [thread overview]
Message-ID: <48EBC932.9010808@redhat.com> (raw)
In-Reply-To: <48EB87EE.9050003@codemonkey.ws>
Anthony Liguori wrote:
>> Are there plans to support vectored block requests with the thread pool
>> implementation?
>>
>
> Yes, that's the primary reason for doing a new thread pool
> implementation.
Cool.
> Of course, we need a zero-copy DMA API before such a
> thing would make sense.
Hmm, quick check of the IDE code indeed shows a copy happening there.
Why is it needed? My xen disk backend doesn't copy data. Does that
mean might have done something wrong? Does the virtio backend copy data
too?
Disclaimer: I don't know much about ide dma ...
cheers,
Gerd
next prev parent reply other threads:[~2008-10-07 20:40 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-26 15:59 [Qemu-devel] [5323] Implement an fd pool to get real AIO with posix-aio Anthony Liguori
2008-09-26 17:59 ` Ryan Harper
2008-09-26 18:35 ` Anthony Liguori
2008-09-26 18:50 ` Ryan Harper
2008-10-07 15:43 ` Gerd Hoffmann
2008-10-07 16:01 ` Anthony Liguori
2008-10-07 20:40 ` Gerd Hoffmann [this message]
2008-10-07 21:21 ` Anthony Liguori
2008-10-07 22:15 ` Gerd Hoffmann
2008-10-07 22:39 ` Anthony Liguori
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