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Re: [Qemu-devel] [PATCH v3 0/13] migration: Add a new feature to do live


From: Dr. David Alan Gilbert
Subject: Re: [Qemu-devel] [PATCH v3 0/13] migration: Add a new feature to do live migration
Date: Fri, 23 Jan 2015 13:10:48 +0000
User-agent: Mutt/1.5.23 (2014-03-12)

* Liang Li (address@hidden) wrote:
> This feature can help to reduce the data transferred about 60%, and the
> migration time can also be reduced about 70%.
> 
>     Summary of changed from v2->v3
>     
>     -Splited the patch to 13 parts instead of 2
>     -Rewrote the core code to do compression and decompression 
>     -Updated the document
>     -Added a common command interface to set and query parameters
>     -Added some comments

Hi,
  Apologies for taking so long; generally this is a lot nicer.
I'll reply to each patch individually, but two more general questions:
   a) Shouldn't compressBound be used somewhere to get the worst case 
compressed size?
   b) I think adding some trace points would be useful; it would make it easier 
to
      spot when you were waiting for threads etc.

Dave

--
Dr. David Alan Gilbert / address@hidden / Manchester, UK



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