Hi all, I want to know if PMU in Xen HVM or PV is supported now? I have done a test that in the latest xen-unstable source, "perf" command cannot give right output in VMs. My CPU is Intel(R) Xeon(R) CPU E5620 @ 2.40GHz. Thanks, Arthur -- Arthur Chunqi Li Department of Computer Science School of EECS Peking University Beijing, China _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Am Mittwoch 20 März 2013, 19:44:27 schrieb ææ¥å¥:> Hi all, > I want to know if PMU in Xen HVM or PV is supported now? I have done a test > that in the latest xen-unstable source, "perf" command cannot give right > output in VMs. My CPU is Intel(R) Xeon(R) CPU E5620 @ 2.40GHz.perf should be supported for HVM guests in the last xen-unstable source for most Intel processors. You have to add the ''vpmu'' flag as hypervisor boot parameter. If you start your HVM guest you should see a message in the hypervisor logs if your cpu is not supported. Dietmar.> > Thanks, > Arthur > >-- Company details: http://ts.fujitsu.com/imprint.html
On Wed, Mar 20, 2013 at 11:44 AM, 李春奇 <Arthur Chunqi Li> <yzt356@gmail.com> wrote:> Hi all, > I want to know if PMU in Xen HVM or PV is supported now? I have done a test > that in the latest xen-unstable source, "perf" command cannot give right > output in VMs. My CPU is Intel(R) Xeon(R) CPU E5620 @ 2.40GHz.Googling for "xen vpmu" turns up this page, which has some basics: http://wiki.xen.org/wiki/Xen_Profiling:_oprofile_and_perf Strangely though, googling for "Xen PMU" doesn't seem to be as useful... maybe we need to add some more tags. :-) -George _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel