On 09/24/2012 05:48 PM, Avi Kivity wrote: > On 09/24/2012 07:55 AM, Xiao Guangrong wrote: >> On 07/10/2012 01:05 AM, Avi Kivity wrote: >>> Currently, any time a request bit is set (not too uncommon) we check all of >>> them. >>> This patchset optimizes the process slightly by skipping over unset bits >>> using >>> for_each_set_bit(). >>> >> >> I also notice that kvm_check_request costs lots of cpu time. What is the >> status >> of this patchset? >> > > I had problems getting rid of KVM_REQ_PENDING_TIMER. I'll try again. > > In what workloads did you see kvm_check_request()? >
Run kernbench on guest, and use perf to sample, this function is really hot. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
