WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] horrible nfs server performance on domU

On Sat, 5 Mar 2005, Tupshin Harper wrote:

> > Time to try out whether profiling works in domU, so we can
> > figure out exactly where cpu time is being spent.  I'm willing
> > to help you debug this problem.
> >  
> Great. Let me know of anything I can try. I'm happy to build custom kernels,
> try experimental patches, etc. I've never done any kernel profiling, but I'm
> happy to give it a shot. If you are referring to CONFIG_OPROFILE, then it
> seems that it's not selectable in a xen kernel atm

I was referring to standard kernel profiling, booting the
domain with "profile=2" as an extra boot option, and looking
at the data in /proc/profile with the readprofile tool.

-- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/xen-devel