[RFC] cpufreq: governor: Set MIN_LATENCY_MULTIPLIER to 20

From: Viresh Kumar
Date: Tue Feb 26 2013 - 04:44:49 EST

Currently MIN_LATENCY_MULTIPLIER is set defined as 100 and so on a system with
transition latency of 1 ms, the minimum sampling time comes to be around 100 ms.
That is quite big if you want to get better performance for your system.

Redefine MIN_LATENCY_MULTIPLIER to 20 so that we can support 20ms sampling rate
for such platforms.

Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

Hi Guys,

I really don't know how this figure (100) came initially, but we really need to
have 20ms support for my platform: ARM TC2.

Pushed here:


drivers/cpufreq/cpufreq_governor.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index d2ac911..adb8e30 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -34,7 +34,7 @@
#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)

/* Ondemand Sampling types */

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