[Qemu-discuss] Colo perfmance

[wangguang]

Hi
I am testing QEMU COLO feature described here [QEMU
Wiki](http://wiki.qemu-project.org/Features/COLO).
I am testing io performance with iozone in  Primary VM.
And the io performance wth colo is mucher lower than which without colo when
writing a file in Primary VM.

Iozone –r 512k –i 0 –i 1 –s 2g –f /home/file_2G
not colo:
Write:     1544523
Rewrite:   1433098
Read:     696418
Reread:   721802

Colo:
Write:     138186
Rewrite:   138286
Read:     1754523
Reread:   1892802


Does anyon have plan to optimize the performance of colo? 
Any help is appreciated! 





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