kvm ppc timing stats

2010-12-01 Thread Yoder Stuart-B08248
Hollis, Am looking at some performance data and want to make sure that I'm understanding things correctly with your CONFIG_KVM_EXIT_TIMING stuff. If I reset the timing counters, run a workload under for a fixed duration (e.g. 30 seconds), and then look at the exit stats, I should see 30 seconds

Re: kvm ppc timing stats

2010-12-01 Thread Alexander Graf
On 01.12.2010, at 21:20, Yoder Stuart-B08248 wrote: > Hollis, > > Am looking at some performance data and want to make sure that > I'm understanding things correctly with your CONFIG_KVM_EXIT_TIMING > stuff. If I reset the timing counters, run a workload > under for a fixed duration (e.g. 30 s

Re: kvm ppc timing stats

2010-12-01 Thread Hollis Blanchard
Yes, your understanding is correct (barring any bugs, of course). Why do you think "time is missing"? Hollis Blanchard Mentor Graphics, Embedded Systems Division On 12/01/2010 12:02 PM, Yoder Stuart-B08248 wrote: Hollis, Am looking at some performance data and want to make sure that I'm un

RE: kvm ppc timing stats

2010-12-01 Thread Yoder Stuart-B08248
Well, in the example I'm looking at, which runs for 30 seconds, the "sum" column of the stats adds up to about 10 seconds total. So, there is 20 seconds unaccounted for. Interestingly enough, if I let the guest just sit idle for 30 seconds, the stats do sum up to about 30 seconds. Will get to