Messages in this thread | | | From | Gaku Inami <> | Subject | RE: [PATCHv4 00/12] sched/fair: Migrate 'misfit' tasks on asymmetric capacity systems | Date | Mon, 20 Aug 2018 02:50:45 +0000 |
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Hi,
> -----Original Message----- > From: Morten Rasmussen <morten.rasmussen@arm.com> > Sent: Wednesday, July 4, 2018 7:18 PM > To: peterz@infradead.org; mingo@redhat.com > Cc: valentin.schneider@arm.com; dietmar.eggemann@arm.com; vincent.guittot@linaro.org; Gaku Inami > <gaku.inami.xh@renesas.com>; linux-kernel@vger.kernel.org; Morten Rasmussen <morten.rasmussen@arm.com> > Subject: [PATCHv4 00/12] sched/fair: Migrate 'misfit' tasks on asymmetric capacity systems
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> The patches have been tested on: > 1. Arm Juno (r0): 2+4 Cortex A57/A53 > 2. Hikey960: 4+4 Cortex A73/A53 > > Test case: > Big cpus are always kept busy. Pin a shorter running sysbench tasks to > big cpus, while creating a longer running set of unpinned sysbench > tasks.
I have tested v4 patches on Renesas SoC again. It looks fine.
You can add:
Tested-by: Gaku Inami <gaku.inami.xh@renesas.com>
The patches have been tested on: 3. Renesas R-Car H3 : 4+4 Cortex A57/A53
Results: Single runs with completion time of each task R-Car H3 (tip) total time: 0.9488s total time: 0.9766s total time: 1.3243s total time: 1.6740s
R-Car H3 (misfit) total time: 0.9313s total time: 0.9214s total time: 0.9493s total time: 0.9606s
10 run summary (tracking longest running task for each run) R-Car H3 avg max tip 1.6744 1.6780 misfit 0.9616 1.0290
Also, I confirmed that these patches bring performance improvement to some benchmarks(UnixBench, LMbench). So they have very useful for Renesas SoC.
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Regards, Inami
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