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Re: [Xen-devel] Question about CPU utilization



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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