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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

  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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