Re: KVM performance vs. Xen

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Avi Kivity wrote:
Anthony Liguori wrote:
Avi Kivity wrote:
1) I'm seeing about 2.3% in scheduler functions [that I recognize].
Does that seems a bit excessive?
Yes, it is.  If there is a lot of I/O, this might be due to the 
thread pool used for I/O.
This is why I wrote the linux-aio patch.  It only reduced CPU 
consumption by about 2% although I'm not sure if that's absolute or 
relative.  Andrew?
Was that before or after the entire path was made copyless?
Before so it's worth updating and trying again.

Regards,

Anthony Liguori
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