> -----Original Message----- > From: Peter Maydell [mailto:peter.maydell@xxxxxxxxxx] > Sent: Thursday, November 08, 2012 7:04 PM > To: Sundaram, Senthilkumar > Cc: kvmarm@xxxxxxxxxxxxxxxxxxxxx > Subject: Re: Using perf: Getting guest kallsyms > > On 8 November 2012 11:34, Sundaram, Senthilkumar > <ssundara@xxxxxxxxxxxxxxxx> wrote: > > I am running within A15 fast model. > > > > I want to run perf ( from the Host) and record guest cpu utilization > > across various modules & functions. > > You should be aware that the performance characteristics of the fast model > do not particularly correspond to how any kind of hardware might behave; > you need to be very cautious about interpreting cpu utilization or other > performance related data you gather. Gathering perf info on real hardware > would be rather safer. > [[ss]] Agreed. I am waiting for my hardware. I want to have my setup ready by the time the hardware shows up. Also, while the timing information may not be very useful, the "kvm trace events" may still be useful. Perf has a mode to print the count of various events that occurred for a particular period. I think that will be still be useful. > -- PMM _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
