[libvirt] Cluster_size parameter issue on qcow2 image format

Pankaj Rawat pankaj.rawat at nechclst.in
Thu Feb 23 05:08:12 UTC 2012


I have been working o the qcow2 image format ,

I theory regarding  cluster size it is written that as the size of
cluster increase performance should increase.


But something surprising happen The performance is degrading as the size
of cluster increased from 64K to 1M  ( during expansion of qcow2 image)


can any one tell why ? 




The contents of this e-mail and any attachment(s) are confidential and

for the named recipient(s) only. 

It shall not attach any liability on the originator or NECHCL or its

affiliates. Any views or opinions presented in 

this email are solely those of the author and may not necessarily reflect the

opinions of NECHCL or its affiliates. 

Any form of reproduction, dissemination, copying, disclosure, modification,

distribution and / or publication of 

this message without the prior written consent of the author of this e-mail is

strictly prohibited. If you have 

received this email in error please delete it and notify the sender

immediately. .

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libvir-list/attachments/20120223/55b477e5/attachment-0001.htm>

More information about the libvir-list mailing list