[libvirt] [Qemu-devel] [PATCH v4] XBZRLE delta for live migration of large memory apps
Avi Kivity
avi at redhat.com
Mon Aug 8 13:51:44 UTC 2011
On 08/08/2011 04:29 PM, Anthony Liguori wrote:
>
> One thing that strikes me about this algorithm is that it's very good
> for a particular type of workload--shockingly good really.
Poking bytes at random places in memory is fairly generic. If you have
a lot of small objects, and modify a subset of them, this is the pattern
you get.
>
> I think workload aware migration compression is possible for a lot of
> different types of workloads. That makes me a bit wary of QEMU
> growing quite a lot of compression mechanisms.
>
> It makes me think that this logic may really belong at a higher level
> where more information is known about the workload. For instance, I
> can imagine XBZRLE living in something like libvirt.
A better model would be plugin based.
--
error compiling committee.c: too many arguments to function
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