[Xen-bugs] [Bug 1784] Poor performance when do guest save/restore and migration with linux 3.1 dom0

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1784





------- Comment #4 from xudong.hao@xxxxxxxxx  2011-09-26 20:58 -------
(In reply to comment #3)
> A bit confused of what you are comparing against?
Both of guest use RHEL6u1 with its kernel by default, the comparison difference
is only for dom0 kernel, which using kernel 3.1.0-rc3 show poor performance.

> OK, so how is 3.1 involved? 
If guest use 3.1 kernel, the data is similar as RHEL6u1's kernel.

==============================================================
Host kernel version    Guest kernel   save     restore    migration
==============================================================
vmlinux-2.6-xen       RHEL6u1-2.6.32  19s      14s      30s    
vmlinux-3.1.0-rc3     RHLE6u1-2.6.32  54s      26s      75s    
vmlinux-3.1.0-rc3     kernle 3.1      51s      20s      72s       
==============================================================


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