Messages in this thread | | | From | Joel Fernandes <> | Subject | [PATCH RFC RESEND v2 0/2] Prevent cpufreq update for only task on rq that sleeps | Date | Sun, 3 Sep 2017 13:15:40 -0700 |
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These patches are just a repost of [1] and [2] with a cover letter for more history and backround. On the Pixel product we carry a similar path which was also posted some time ago to LKML [3] [4] however that patch was for schedfreq governor (which isn't upstream). For schedutil which is upstream and currently used on our future products, we go through the cpufreq update hooks and this patch is adapted for this usecase.
[1] https://patchwork.kernel.org/patch/9910019/ [2] https://patchwork.kernel.org/patch/9910017/ [3] https://patchwork.kernel.org/patch/8385861/ [4] https://lwn.net/Articles/676886/
Joel Fernandes (2): Revert "sched/fair: Drop always true parameter of update_cfs_rq_load_avg()" sched/fair: Skip frequency update if CPU about to idle
kernel/sched/fair.c | 38 +++++++++++++++++++++++++++++--------- kernel/sched/sched.h | 1 + 2 files changed, 30 insertions(+), 9 deletions(-)
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Len Brown <lenb@kernel.org> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Viresh Kumar <viresh.kumar@linaro.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Juri Lelli <juri.lelli@arm.com> Cc: Patrick Bellasi <patrick.bellasi@arm.com> Cc: Steve Muckle <smuckle@google.com> Cc: kernel-team@android.com Signed-off-by: Joel Fernandes <joelaf@google.com> -- 2.14.1.581.gf28d330327-goog
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