Messages in this thread | | | Date | Sun, 28 Jan 2024 21:51:57 +0530 | Subject | Re: [PATCH v2 8/8] sched/pelt: Introduce PELT multiplier | From | Ashay Jaiswal <> |
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Hello Qais Yousef,
Thank you for your response.
On 1/21/2024 5:34 AM, Qais Yousef wrote: > Hi Ashay > > On 01/20/24 13:22, Ashay Jaiswal wrote: >> Hello Qais Yousef, >> >> We ran few benchmarks with PELT multiplier patch on a Snapdragon 8Gen2 >> based internal Android device and we are observing significant >> improvements with PELT8 configuration compared to PELT32. >> >> Following are some of the benchmark results with PELT32 and PELT8 >> configuration: >> >> +-----------------+---------------+----------------+----------------+ >> | Test case | PELT32 | PELT8 | >> +-----------------+---------------+----------------+----------------+ >> | | Overall | 711543 | 971275 | >> | +---------------+----------------+----------------+ >> | | CPU | 193704 | 224378 | >> | +---------------+----------------+----------------+ >> |ANTUTU V9.3.9 | GPU | 284650 | 424774 | >> | +---------------+----------------+----------------+ >> | | MEM | 125207 | 160548 | >> | +---------------+----------------+----------------+ >> | | UX | 107982 | 161575 | >> +-----------------+---------------+----------------+----------------+ >> | | Single core | 1170 | 1268 | >> |GeekBench V5.4.4 +---------------+----------------+----------------+ >> | | Multi core | 2530 | 3797 | >> +-----------------+---------------+----------------+----------------+ >> | | Twitter | >50 Janks | 0 | >> | SCROLL +---------------+----------------+----------------+ >> | | Contacts | >30 Janks | 0 | >> +-----------------+---------------+----------------+----------------+ >> >> Please let us know if you need any support with running any further >> workloads for PELT32/PELT8 experiments, we can help with running the >> experiments. > > Thanks a lot for the test results. Was this tried with this patch alone or > the whole series applied? > I have only applied patch8(sched/pelt: Introduce PELT multiplier) for the tests.
> Have you tried to tweak each policy response_time_ms introduced in patch > 7 instead? With the series applied, boot with PELT8, record the response time > values for each policy, then boot back again to PELT32 and use those values. > Does this produce similar results? > As the device is based on 5.15 kernel, I will try to pull all the 8 patches along with the dependency patches on 5.15 and try out the experiments as suggested.
> You didn't share power numbers which I assume the perf gains are more important > than the power cost for you. > If possible I will try to collect the power number for future test and share the details.
> > Thanks! > > -- > Qais Yousef
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