Re: [PATCH] cpufreq: ondemand: Set MIN_FREQUENCY_UP_THRESHOLD to 1

From: Viresh Kumar
Date: Mon Jan 04 2016 - 00:57:00 EST


On 04-01-16, 12:14, Chen Yu wrote:
> Currently the minimal up_threshold is 11, and user may want to
> use a smaller minimal up_threshold for performance tuning,
> so MIN_FREQUENCY_UP_THRESHOLD could be set to 1 because:
>
> 1. Current systems wouldn't be affected as they have already
> a value >= 11.
> 2. New systems with a default kernel would keep still the default
> value that is >= 11.
>
> Users now have the advantage that they can make their own decisions
> and customize the 'trip point' to switch to the max frequency.
>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=65501
> Signed-off-by: Chen Yu <yu.c.chen@xxxxxxxxx>
> ---
> drivers/cpufreq/cpufreq_ondemand.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
> index 03ac6ce..2a093b5 100644
> --- a/drivers/cpufreq/cpufreq_ondemand.c
> +++ b/drivers/cpufreq/cpufreq_ondemand.c
> @@ -24,7 +24,7 @@
> #define MAX_SAMPLING_DOWN_FACTOR (100000)
> #define MICRO_FREQUENCY_UP_THRESHOLD (95)
> #define MICRO_FREQUENCY_MIN_SAMPLE_RATE (10000)
> -#define MIN_FREQUENCY_UP_THRESHOLD (11)
> +#define MIN_FREQUENCY_UP_THRESHOLD (1)
> #define MAX_FREQUENCY_UP_THRESHOLD (100)
>
> static DEFINE_PER_CPU(struct od_cpu_dbs_info_s, od_cpu_dbs_info);

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

--
viresh
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