On 06/16/2011 08:08 AM, David Ahern wrote: > Command: > perf stat -e instructions openssl speed aes Hmm.. this might be the wrong benchmark for this. I thought openssl-speed was a purely CPU intensive benchmark which should have fairly similar performance numbers in both host and guest. I seem to recall this as true 2 or so years ago, but that is not the case with 3.0-rc2 and F14. Using a benchmark Vince W. wrote seems better: http://www.csl.cornell.edu/~vince/projects/perf_counter/million.s perf stat -e instructions ./million Performance counter stats for './million': 1,113,650 instructions # 0.00 insns per cycle David > > Guest: > 135,522,189,056 instructions # 0.00 insns per cycle > > > Host: > 346,082,922,185 instructions # 0.00 insns per cycle > > > Adding '--no-scale' to the perf-stat had no effect on the relative > difference. > > David -- 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
