From: Stratos Karafotis <stratosk@semaphore.gr>
To: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: cpufreq@vger.kernel.org, linux-pm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH linux-next] cpufreq: conservative: Fix sampling_down_factor functionality
Date: Tue, 05 Mar 2013 00:14:27 +0200 [thread overview]
Message-ID: <51351CC3.4010301@semaphore.gr> (raw)
sampling_down_factor tunable is unused since commit
8e677ce83bf41ba9c74e5b6d9ee60b07d4e5ed93 (4 years ago).
This patch restores the original functionality.
Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
---
drivers/cpufreq/cpufreq_conservative.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 4fd0006..4b27c21 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -87,6 +87,12 @@ static void cs_check_cpu(int cpu, unsigned int load)
return;
}
+ /* if sampling_down_factor is active break out early */
+ if (++dbs_info->down_skip < cs_tuners.sampling_down_factor)
+ 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
--
1.8.1.4
next reply other threads:[~2013-03-04 22:14 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-04 22:14 Stratos Karafotis [this message]
2013-03-05 0:23 ` [PATCH linux-next] cpufreq: conservative: Fix sampling_down_factor functionality Viresh Kumar
2013-03-05 5:22 ` Stratos Karafotis
2013-03-05 7:34 ` Viresh Kumar
2013-03-05 20:15 ` Stratos Karafotis
2013-03-05 14:11 ` David C Niemi
2013-03-05 14:21 ` David C Niemi
2013-03-05 20:37 ` Stratos Karafotis
2013-03-06 6:43 ` Viresh Kumar
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