Re: [Qemu-devel] [PATCH v3 00/10] migration: Optimizate the xbzrle and fix two corruption issues

[Eric Blake]

On 03/18/2014 06:24 AM, address@hidden wrote:
> From: ChenLiang <address@hidden>
> 
> V2-->V3
> * rename the bitmap_sync_cnt to bitmap_sync_counter
> * expose xbzrle cache miss rate
> 
> V1-->V2
> * expose the counter that logs the times of updating the dirty bitmap to end 
> user.
> 
> a. Optimization the xbzrle remarkable decrease the cache misses.
>     The efficiency of compress increases more than fifty times.
>     Before the patch set, the cache almost totally miss when the 
>     number of cache item less than the dirty page number. Now the
>     hot pages in the cache will not be replaced by other pages. 
> 
> b. Reducing the data copy
> 
> c. Fix two corruption issues.

Your QAPI changes were marked 2.1, but this series also includes a
corruption fix.  Please split this series into patches that MUST be
applied for 2.0 as bug fixes, vs. the patches that are a feature
enhancement (or else with strong justification why a speed optimization
is safe enough to be considered a bug fix, if you think the whole series
belongs in 2.0).

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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