On Mon 20-02-17 09:43:29, Ye Xiaolong wrote: > On 02/19, Michal Hocko wrote: > >On Mon 13-02-17 14:46:37, Ye Xiaolong wrote: > >> On 02/07, Michal Hocko wrote: > >> >On Tue 07-02-17 10:22:13, Ye Xiaolong wrote: > >> > > >> [snip] > >> > >> >Could you retest with a single NUMA node? I am not familiar with the > >> >benchmark enough to judge it was set up properly for a NUMA machine. > >> > >> Sorry for the late, I'm not quite familiar with NUMA, could you tell me how > >> to configure a machine to use a single NUMA node? through cmdline? > > > >I am not aware of any parameter which would disble numa via command > >line. You can do that when starting qemu, which I assume you are using. > >Just configure a single memory node (-numa parameter). > > Actually we were doing the test on a physical machine, not a guest. > Any kernel config will do? You can disbale CONFIG_NUMA. But a much better approach would be limitting the test to a single numa node via numactl.

-- Michal Hocko SUSE Labs