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Re: [Qemu-devel] [Bug 1100843] Re: Live Migration Causes Performance Iss
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [Bug 1100843] Re: Live Migration Causes Performance Issues |
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Date: |
Mon, 07 Oct 2013 11:37:11 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130923 Thunderbird/17.0.9 |
Il 07/10/2013 08:38, Peter Lieven ha scritto:
> On 06.10.2013 15:57, Zhang Haoyu wrote:
>>> >From my testing this has been fixed in the saucy version (1.5.0) of
>> qemu. It is fixed by this patch:
>>> f1c72795af573b24a7da5eb52375c9aba8a37972
>>>
>>> However later in the history this commit was reverted, and again broke
>> this. The other commit that fixes this is:
>>> 211ea74022f51164a7729030b28eec90b6c99a08
>>>
>> See below post,please.
>> https://lists.gnu.org/archive/html/qemu-devel/2013-08/msg05062.html
>
> I would still like to fix qemu to not load roms etc. if we set up a
> migration target. In this case
> we could drop the madvise, skip the checking for zero pages and also
> could avoid sending
> zero pages at all. It would be the cleanest solution.
It's in general not easy to do this if you take non-x86 targets into
account.
Paolo