Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: RFC: revert request for cpuidle patches e11538d1 and 69a37bea | Date | Sat, 27 Jul 2013 14:10:44 +0200 |
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On Saturday, July 27, 2013 02:22:53 AM Len Brown wrote: > >> OK, I'll queue up the reverts as fixes for 3.11-rc4. > > > > So, the reverts are on the fixes-next branch of the linux-pm.git tree that you > > can access at > > > > http://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git/log/?h=fixes-next > > > > However, they are not simple reverts as we've had some non-trivial changes on > > top of those commits already, so I'd appreciate it a lot if somebody could > > double check if I didn't break anything in them. > > I've verified that the reverts improve netperf TCP_RR performance. > > Here I've got two Xeon's, slightly different, so I run in both directions. > Also I run two ways -- Out-of-the-box, plus with cpufreq > set to max frequency. The reverts improve all 4 cases: > > JKT → IVT IVT → JKT > > 3.11.0-rc2 baseline w/o revert Out of Box > > 20420 19963 > 20658 19915 > 20298 20320 > > 3.11.0-rc2 baseline w/o revert max freq > > 59658 51427 > 59663 51503 > 59416 51343 > > 3.11.0-rc2-00002-g74bce39 Linux-pm “fixes-next” branch > > 3.11.0-rc2-00002-g74bce39 Out of box > 23227 22056 > 23306 22125 > 23387 40226 40k result saw some 2.2 ghz > vs 1.2 ghz in other runs > 21991 > > 3.11.0-rc2-00002-g74bce39 Max-freq > 67240 57645 > 64880 56764 > 65924 57435 > > Tested-by: Len Brown <len.brown@intel.com>
Many thanks Len!
Rafael
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