Messages in this thread | | | From | "Rafael J. Wysocki" <> | Date | Sun, 18 Mar 2018 17:06:04 +0100 | Subject | Re: [RFT][PATCH v5 0/7] sched/cpuidle: Idle loop rework |
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On Sun, Mar 18, 2018 at 4:30 PM, Doug Smythies <dsmythies@telus.net> wrote: > On 2018.03.18 04:01 Rafael J. Wysocki wrote: > >> Below is a drop-in v6 replacement for patch [4/7]. >> >> With this new patch applied instead of the [4/7] the behavior should be much >> more in line with the v4 behavior, so please try it if you can and let me know >> if that really is the case on your systems. > > Yes, the idle power is back down to V4 levels. (I did not do a new graph).
Awesome, thanks!
> Some other data from this week (7 patch set + poll fix verses kernel 4.16-rc5): > > pipe-test: The not cross core test is the most dramatic. Using CPU's 3 and 7, > or core 3, uses 6% less power and 18% performance improvement. > > Graphs: > http://fast.smythies.com/pipe-test-one-core-power.png > http://fast.smythies.com/pipe-test-one-core-times.png > > A couple of Phoronix tests (I didn't get very far yet): > himeno: 11% performance improvement; 14% less power. > compress-lzma: small performance improvement; small power improvement. > mafft: performance similar; small power improvement.
Great news, thank you!
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