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Re: [Xen-devel] credit scheduler error rates as reported by HP and UCSD
| To: | ncmike@xxxxxxxxxx |
|---|---|
| Subject: | Re: [Xen-devel] credit scheduler error rates as reported by HP and UCSD |
| From: | "Diwaker Gupta" <diwaker.lists@xxxxxxxxx> |
| Date: | Thu, 12 Apr 2007 09:09:14 -0700 |
| Cc: | Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>, Emmanuel Ackaouy <ackaouy@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, lucy.cherkasova@xxxxxx |
| Delivery-date: | Thu, 12 Apr 2007 09:08:02 -0700 |
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Questions: how does ALERT measure actual cpu allocation? Using Xenmon? How does the ALERT exersize the domain? The paper didn't mention the actual system calls and hypercalls the domains are making when running ALERT. yes, we use XenMon. We also have xentop output for correlation and validation. I think the paper describes the workloads we use. When the VMs are running webservers, we use httperf to generate the workload. The iperf benchmark uses the iperf bandwidth measurement tools and I believe the VMs run as iperf servers. For disk I/O, we just use a regular dd command to read a file into /dev/null. I'm not sure how one would accurately generate the set of system calls and hypercalls generated by a given workload. And how would you use this information if you had it? Diwaker -- Web/Blog/Gallery: http://floatingsun.net/blog _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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