On 03/01/2013 07:06 AM, Peter Lieven wrote: >> Do you have any benchmark numbers? At any rate, the explanation seems >> sound, so a benchmark should show this. > > Do you have a particular test pattern in mind? If there is nothing going on > in the VM XBZRLE will not be better than normal copy at all. > > Otherwise you will have N xbzrle misses and 0 xbzrle pages without the > patch > and 0 xbzrle misses and 0 xbzrle pages with the patch.
How about a migration of a guest running the synthetic r/w load generator in docs/xbzrle.txt? -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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