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From: Avi Kivity <avi@redhat.com>
To: Adam Greenblatt <adam.greenblatt@gmail.com>
Cc: kvm@vger.kernel.org
Subject: Re: Regression in vga performance between 0.11.1 and 0.12.1.1
Date: Fri, 30 Apr 2010 10:32:56 +0300	[thread overview]
Message-ID: <4BDA87A8.3020503@redhat.com> (raw)
In-Reply-To: <4BD88D84.4050601@gmail.com>

On 04/28/2010 10:33 PM, Adam Greenblatt wrote:
> Hi,
>   I noticed that certain guests (for example, Ubuntu 9.04, Ubuntu 9.10,
> and the Ubuntu 10.04 release candidate) show dramatically (~100x) slower
> graphical output when running under qemu-kvm-0.12.1.1 than under 
> qemu-kvm-0.11.1.
> Other guests, notably Windows XP and Windows Vista, run fine under both
> version of qemu.  The regression is still present in qemu-kvm-0.12.3.


Please post kvm_stat output for the fast and slow cases (preferably 
running the same workload, perhaps a web page displaying an animation).

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.


  reply	other threads:[~2010-04-30 17:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-28 19:33 Regression in vga performance between 0.11.1 and 0.12.1.1 Adam Greenblatt
2010-04-30  7:32 ` Avi Kivity [this message]
2010-05-01 19:17   ` Adam Greenblatt
2010-05-02  6:42     ` Avi Kivity
2010-05-02  6:42       ` [Qemu-devel] " Avi Kivity

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