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.
