From: Kevin Wolf <kwolf@redhat.com>
To: Avi Kivity <avi@redhat.com>
Cc: qemu-devel@nongnu.org, Gleb Natapov <gleb@redhat.com>
Subject: Re: [Qemu-devel] [PATCH] qcow2: Order concurrent AIO requests on the same unallocated cluster
Date: Tue, 01 Sep 2009 15:15:03 +0200 [thread overview]
Message-ID: <4A9D1E57.3070600@redhat.com> (raw)
In-Reply-To: <4A9D1940.4040304@redhat.com>
Avi Kivity schrieb:
> On 09/01/2009 03:29 PM, Kevin Wolf wrote:
>> Gleb Natapov schrieb:
>>
>>>>> No really detailed numbers. Installation time for RHEL on qcow2/virtio
>>>>> went down from 34 min to 19 min, though.
>>>>>
>>>> That's very impressive. cache=none or cache=wt?
>>>>
>>>>
>>> And how it compares with raw?
>>>
>> I just ran another installation on raw and it took about 16:30 min.
>>
>> And with the next patch series that I'm going to send today we'll be in
>> the same region with qcow2.
>>
>
> Looks pretty good then. Was that 'raw' as in 'disk partition', or as
> 'raw file on ext3'?
raw file on ext3. As I said this is just manual ad-hoc testing on my
laptop, so you certainly can do better benchmarks than these. And I
think I'll do some later this week.
Kevin
next prev parent reply other threads:[~2009-09-01 13:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-08-31 14:48 [Qemu-devel] [PATCH] qcow2: Order concurrent AIO requests on the same unallocated cluster Kevin Wolf
2009-09-01 10:19 ` Avi Kivity
2009-09-01 10:50 ` Kevin Wolf
2009-09-01 11:24 ` Avi Kivity
2009-09-01 11:26 ` Gleb Natapov
2009-09-01 12:29 ` Kevin Wolf
2009-09-01 12:53 ` Avi Kivity
2009-09-01 13:15 ` Kevin Wolf [this message]
2009-09-01 11:43 ` Kevin Wolf
2009-09-01 11:55 ` Avi Kivity
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