Re: [Qemu-devel] [Bug 1100843] Re: Live Migration Causes Performance Issues

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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

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