[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] GSoC: Improved image format compatibility
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] GSoC: Improved image format compatibility |
Date: |
Fri, 01 Apr 2011 18:29:52 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 |
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