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Commit 76ef171c authored by Saravana Kannan's avatar Saravana Kannan
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cpufreq: schedutil: Don't jump to max frequency for RT tasks 



Android uses a lot of RT threads. Jumping to max frequency for RT tasks
will cause a significant degradation in power that would not be acceptable
for mobile devices. So, stop doing that.

Change-Id: I4e1056c678755014e38eaafe05e890ff2e38c42e
Signed-off-by: default avatarSaravana Kannan <skannan@codeaurora.org>
parent 17a15f82

kernel/sched/cpufreq_schedutil.c

+4 −0
Original line number Diff line number Diff line
@@ -206,6 +206,8 @@ static void sugov_update_single(struct update_util_data *hook, u64 time, 
	if (!sugov_should_update_freq(sg_policy, time))

		return;



	flags &= ~SCHED_CPUFREQ_RT_DL;



	if (flags & SCHED_CPUFREQ_RT_DL) {

		next_f = policy->cpuinfo.max_freq;

	} else {
@@ -278,6 +280,8 @@ static void sugov_update_shared(struct update_util_data *hook, u64 time, 


	sugov_get_util(&util, &max);



	flags &= ~SCHED_CPUFREQ_RT_DL;



	raw_spin_lock(&sg_policy->update_lock);



	sg_cpu->util = util;