From: Kevin Wolf <kwolf@redhat.com>
To: Lyu Mitnick <mitnick.lyu@gmail.com>
Cc: qemu-devel@nongnu.org, Stefan Hajnoczi <stefanha@gmail.com>
Subject: Re: [Qemu-devel] GSoC: Improved image format compatibility
Date: Fri, 01 Apr 2011 18:29:52 +0200 [thread overview]
Message-ID: <4D95FD80.6050303@redhat.com> (raw)
In-Reply-To: <AANLkTima7pRswOZLrQKt9G7vKUFDteOSYT6ppMtP2BEw@mail.gmail.com>
Am 01.04.2011 17:15, schrieb Lyu Mitnick:
> Hello Stefan
>
> Hello Mitnick,
>
> asynchronous i/o is also missing in block/vpc.c.
>
> All newer block drivers support asynchronous reads and writes,
> only some old drivers don't.
>
> So adding asynchronous i/o to at least some of the old drivers
> would improve their usability.
>
> Look for "aio" in block/*.c to get a starting point.
>
> Regards
> Stefan (W.)
>
>
> I look for "aio" in block/*.c as a starting point of asynchronous i/o.
> And I
> found that there isn't any "aio" keywords in block/vmdk.c. block/vmdk.c
> is used as block driver for the VMDK format. Is it means that asynchronous
> i/o is also missing in VMDK format?
Yes, the VMDK implementation is completely synchronous.
Kevin
next prev parent reply other threads:[~2011-04-01 17:11 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-29 21:55 [Qemu-devel] GSoC: Improved image format compatibility Lyu Mitnick
2011-03-30 4:50 ` Stefan Weil
2011-03-30 8:32 ` Stefan Hajnoczi
2011-03-30 18:40 ` Lyu Mitnick
2011-03-30 19:11 ` Stefan Weil
2011-03-30 19:36 ` Lyu Mitnick
2011-04-01 15:15 ` Lyu Mitnick
2011-04-01 16:29 ` Kevin Wolf [this message]
2011-04-01 18:29 ` Lyu Mitnick
2011-04-02 13:54 ` Stefan Hajnoczi
2011-04-02 19:03 ` Lyu Mitnick
2011-04-03 7:33 ` Stefan Hajnoczi
2011-04-04 17:35 ` Lyu Mitnick
2011-04-01 17:02 ` Stefan Weil
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