On Fri, Apr 06, 2012 at 10:43:17AM +0530, shashank rachamalla wrote: > On Thu, Apr 5, 2012 at 8:11 PM, Gleb Natapov <gleb@xxxxxxxxxx> wrote: > > On Thu, Apr 05, 2012 at 05:38:40PM +0300, Avi Kivity wrote: > >> On 04/05/2012 04:57 PM, Gleb Natapov wrote: > >> > > > > >> > > May be it used NMI based profiling. We should ask oprofile developers. > >> > > As I said I am almost sure my inability to run it on a host is probably > >> > > PEBKAC, although I ran the same script exactly on the host and the > >> > > guest (the script is from the first email of this thread) > >> > > > >> > After upgrading the kernel to latest git from whatever it was there the > >> > same script works and counts CPU_CLK_UNHALT events. > >> > > >> > >> This is even while it violates the Intel guidelines? > >> > > Yes, but who says the result is correct :) It seems that we handle > > global ctrl msr wrong. That is counter can be enabled either in global > > ctrl or in eventsel. Trying to confirm that. > > > if that becomes true then will global ctrl msr have any significance ? When it is in use yes. -- Gleb. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
