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Re: [Qemu-devel] [PATCH v6 00/11] rdma: migration support
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH v6 00/11] rdma: migration support |
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Date: |
Fri, 10 May 2013 09:58:06 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4 |
Il 10/05/2013 00:20, Chegu Vinod ha scritto:
>>
>> Wow, I didn't know that either. Perhaps this must be causing the
>> entire QEMU process and its threads to seize up.
>>
>> It may be necessary to run the pinning command *outside* of QEMU's I/O
>> lock in a separate thread if it's really that much overhead.
>
> Not really sure if the BQL is causing the freeze...but in general
> pinning of all memory when the guest is run is perhaps not the best
> choice for large enterprise class guests...i.e. its better to do it as
> part of the start of the guest.
If pinning is done in the setup phase, it should run outside the BQL.
Paolo