[Qemu-devel] savevm speed [was: Re: Qemu-devel Digest, Vol 128, Issue 24]

[Eric Blake]

On 11/03/2013 07:41 AM, 宫文超 wrote:
> 
> 

Top-posted replies to an untrimmed digest message and with an irrelevant
subject line are considered poor netiquette.

> 
> 
> When i use the savevm command to create a online snapshot i found it's very 
> very slow,i found the online snapshot save four device information,and now i 
> only want to save the disk information so i delete the code to save the other 
> three device information,however,i found
> when the disk capacity is big it's also very slow ,could you offer some ideas 
> to solve this problem?THX by Wenchao Gong

What qemu version are you using?  There have been patches that will be
in the eventual qemu 1.7 to address some of the speed problems, and
further patches planned for 1.8 to make internal snapshots more flexible
to use.  Perhaps you can evaluate those patches and provide reviews.

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

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