Messages in this thread | | | Date | Thu, 24 Feb 2022 16:49:43 -0800 | From | Dave Hansen <> | Subject | Re: [PATCH -V11 2/9] mm/migrate: update node demotion order on hotplug events |
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On 2/24/22 15:37, Abhishek Goel wrote: > > On 24/02/22 05:35, Dave Hansen wrote: >> On 2/23/22 15:02, Abhishek Goel wrote: >>> If needed, I will provide experiment results and traces that were used >>> to conclude this. >> It would be great if you can provide some more info. Even just a CPU >> time profile would be helpful. > > Average total time taken for SMT=8 to SMT=1 in v5.14 : 20s > > Average total time taken for SMT=8 to SMT=1 in v5.15 : 36s > > (Observed in system with 150+ CPUs )
I was kinda thinking of:
perf record / perf report
output. Not wall clock time. We need to know what the kernel is doing during those extra 16 seconds.
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