diff options
| author |   Stratos Karafotis <stratosk@semaphore.gr> | 2013-03-05 22:06:40 +0000 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-04-01 01:11:35 +0200 |
| commit | 27ed3cd2ebf4cd78b198be9758c538cdede36d8a (patch) | |
| tree | 7d1e5bc92a1722752daed3762ef83130c56a65c2 /drivers/cpufreq/cpufreq_conservative.c | |
| parent | cpufreq: conservative: Fix sampling_down_factor functionality (diff) | |
| download | linux-dev-27ed3cd2ebf4cd78b198be9758c538cdede36d8a.tar.xz linux-dev-27ed3cd2ebf4cd78b198be9758c538cdede36d8a.zip | |
cpufreq: conservative: Fix the logic in frequency decrease checking
When we evaluate the CPU load for frequency decrease we have to compare
the load against down_threshold. There is no need to subtract 10 points
from down_threshold.
Instead, we have to use the default down_threshold or user's selection
unmodified.
Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq_conservative.c')
| -rw-r--r-- | drivers/cpufreq/cpufreq_conservative.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c index d746d6abbca8..0d6a9e55ac8c 100644 --- a/drivers/cpufreq/cpufreq_conservative.c +++ b/drivers/cpufreq/cpufreq_conservative.c @@ -86,12 +86,8 @@ static void cs_check_cpu(int cpu, unsigned int load) return; dbs_info->down_skip = 0; - /* - * The optimal frequency is the frequency that is the lowest that can - * support the current CPU usage without triggering the up policy. To be - * safe, we focus 10 points under the threshold. - */ - if (load < (cs_tuners->down_threshold - 10)) { + /* Check for frequency decrease */ + if (load < cs_tuners->down_threshold) { /* * if we cannot reduce the frequency anymore, break out early */ |