On 06/16/2011 08:36 AM, Avi Kivity wrote: > On 06/16/2011 05:32 PM, David Ahern wrote: >> Seems to be a side effect of running perf-stat in the guest. Running >> just 'openssl speed aes' in both host and guest shows very similar >> numbers (for the first 3 columns). Adding the 'perf stat' to the command >> (ie., perf stat openssl speed aes) causes a significant decline in the >> guest - by a factor of 2. For comparison 'perf stat' in the host has a >> negligible impact. > > That's pretty bad. I'll investigate. > Before I let this go for the day .... Running perf in the host shows arch_local_irq_enable is a lot more prevalent when adding 'perf stat' to the command in the guest. 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
