On 10/29/2015 04:45 PM, Jason Wang wrote: > Hi all: > > This series tries to add basic busy polling for vhost net. The idea is > simple: at the end of tx processing, busy polling for new tx added > descriptor and rx receive socket for a while. The maximum number of > time (in us) could be spent on busy polling was specified through > module parameter. > > Test were done through: > > - 50 us as busy loop timeout > - Netperf 2.6 > - Two machines with back to back connected mlx4 > - Guest with 8 vcpus and 1 queue > > Result shows very huge improvement on both tx (at most 158%) and rr > (at most 53%) while rx is as much as in the past. Most cases the cpu > utilization is also improved: > Just notice there's something wrong in the setup. So the numbers are incorrect here. Will re-run and post correct number here. Sorry. -- 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
