On 19/10/12 10:13, Sundaram, Senthilkumar wrote: > I would like to profile some of the key Hyp routines including > World-Switch, TLB Flush etc. > > > > I am planning to use cycle counters to profile these routines. Has > anything like this been done before? Any suggestions. I've played with perf in the recent past, and managed to find some interesting results. You'll need a couple of patches on top of kvm-arm-master: git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms.git kvm-perf With these patches, you can use "perf kvm". We do not support stack unwinding in the guest though. Note that you do not strictly need these patches if all you want is to count events in HYP mode. Just add the ":h" qualifier to the events you're interested in. M. -- Jazz is not dead. It just smells funny... _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
