Messages in this thread | | | Date | Sun, 21 Jul 2013 23:02:40 +0530 | From | Preeti U Murthy <> | Subject | Re: [RFC PATCH v2] sched: Limit idle_balance() |
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Hi Json,
With V2 of your patch here are the results for the ebizzy run on 3.11-rc1 + patch on a 1 socket, 16 core powerpc machine. Each ebizzy run was for 30 seconds.
Number_of_threads %improvement_with_patch 4 8.63 8 1.29 12 9.98 16 20.46
Let me know if you want me to profile any of these runs for specific statistics.
Regards Preeti U Murthy
On 07/20/2013 12:58 AM, Jason Low wrote: > On Fri, 2013-07-19 at 16:54 +0530, Preeti U Murthy wrote: >> Hi Json, >> >> I ran ebizzy and kernbench benchmarks on your 3.11-rc1 + your "V1 >> patch" on a 1 socket, 16 core powerpc machine. I thought I would let you >> know the results before I try your V2. >> >> Ebizzy: 30 seconds run. The table below shows the improvement in the >> number of records completed. I have not spent enough time on the patch >> to explain such a big improvement. >> >> Number_of_threads %improvement_with_patch >> 4 41.86% >> 8 9.8% >> 12 34.77% >> 16 28.37% >> >> While on kernbench there was no significant change in the observation. >> >> I will try patch V2 and let you know the results. > > Great to see those improvements so far. Thank you for testing this. > > Jason >
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