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  1. Bug #1709220
  2. Comment #10

Comment 10 for bug 1709220

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bugproxy (bugproxy) wrote : Comment bridged from LTC Bugzilla

------- Comment From <email address hidden> 2017-09-07 16:14 EDT-------
Hi, I was able to verify that these fixes in the -proposed kernel provide the expected performance improvements, thanks!

This time I re-baselined on a P9 with 32 DD2 cores, so overall compare is a bit different than previous comments but still seeing significant performance gains as expected. Here are the improvements of the proposed kernel (4.10.0-34-generic -- #38~16.04.1-Ubuntu) compared to the baseline kernel (4.10.0-33-generic #37~16.04.1-Ubuntu):

improvement
SMToff SMT4
Execl ? single 136.6% 153.0%
Execl ? multi -6.2% 8.8%
Sysexec ? single 110.1% 91.1%
Sysexec ? multi 2.8% 5.6%
Spawn ? single 43.9% 46.1%
Spawn ? multi 8.3% 14.2%