Re: Question about CPU utilization

[Rob Gardner <rob.gardner@hp.com>]

Just so somebody doesn't go off and duplicate a bunch of effort, this 
seems like a good time to announce that I've already written a 
considerable amount of code that provides detailed measurements of cpu 
usage for each domain along with some other interesting bits of data, 
for instance domain context switch frequency, etc. The code consists of 
some hooks in xen itself to record data, and an app that runs in Dom0 
that grabs the data and presents it either as a periodically updating 
text screen, or as semi-processed data through a network socket for use 
by other programs.

I'd like to make this code available to everyone by checking it in to 
the xen source, perhaps having the code activated through a build option 
or something. Then we can discuss the various ideas for the best 
interface to this data, snmp or whatever.

Rob Gardner
HP, Fort Collins





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