* [PATCH] [5/5] ondemand governor default sampling downfactor as 1
@ 2005-05-18 20:40 Venkatesh Pallipadi
0 siblings, 0 replies; only message in thread
From: Venkatesh Pallipadi @ 2005-05-18 20:40 UTC (permalink / raw)
To: Dave Jones; +Cc: Alexander Clouter, cpufreq, Eric Piel, linux, Rajesh Shah
[PATCH] [5/5] ondemand governor default sampling downfactor as 1
Make default sampling downfactor 1.
This works better with earlier auto downscaling change in ondemand governor.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
--- linux-2.6.11/drivers/cpufreq/cpufreq_ondemand.c.org 2005-03-11 19:41:12.000000000 -0800
+++ linux-2.6.11/drivers/cpufreq/cpufreq_ondemand.c 2005-03-11 19:43:00.000000000 -0800
@@ -51,7 +51,8 @@ static unsigned int def_sampling_rat
#define MIN_SAMPLING_RATE (def_sampling_rate / 2)
#define MAX_SAMPLING_RATE (500 * def_sampling_rate)
#define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER (1000)
-#define DEF_SAMPLING_DOWN_FACTOR (10)
+#define DEF_SAMPLING_DOWN_FACTOR (1)
+#define MAX_SAMPLING_DOWN_FACTOR (10)
#define TRANSITION_LATENCY_LIMIT (10 * 1000)
#define sampling_rate_in_HZ(x) (((x * HZ) < (1000 * 1000))?1:((x * HZ) / (1000 * 1000)))
@@ -119,6 +120,9 @@ static ssize_t store_sampling_down_facto
if (ret != 1 )
return -EINVAL;
+ if (input > MAX_SAMPLING_DOWN_FACTOR || input < 1)
+ return -EINVAL;
+
down(&dbs_sem);
dbs_tuners_ins.sampling_down_factor = input;
up(&dbs_sem);
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2005-05-18 20:40 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2005-05-18 20:40 [PATCH] [5/5] ondemand governor default sampling downfactor as 1 Venkatesh Pallipadi
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox