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cpuquiet: Update runnable gov param 20/100ms (1.25/2.25/2.5 +.5)

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Sampling interval: 20ms
Window size: 100ms

Thresholds: 1.25/2.25/2.5 thread
Hysteresis: .5 thread

Bug 1050445

Change-Id: I5138bed06e6f3548ec440d2b9ee17460fc37adfb
Signed-off-by: Peter Boonstoppel <pboonstoppel@nvidia.com>
Reviewed-on: http://git-master/r/163105
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Diwakar Tundlam <dtundlam@nvidia.com>
This commit is contained in:
Peter Boonstoppel
2012-11-12 11:17:01 -08:00
committed by Huang, Tao
parent c5ee21ccde
commit c516e3445c
1 changed files with 5 additions and 5 deletions
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10
drivers/cpuquiet/governors/runnable_threads.c
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@@ -39,7 +39,7 @@ static struct timer_list runnables_timer;
static RUNNABLES_STATE runnables_state;
/* configurable parameters */
static unsigned int sample_rate = 10; /* msec */
static unsigned int sample_rate = 20; /* msec */
static RUNNABLES_STATE runnables_state;
@@ -47,11 +47,11 @@ static RUNNABLES_STATE runnables_state;
#define NR_FSHIFT (1 << NR_FSHIFT_EXP)
/* avg run threads * 8 (e.g., 11 = 1.375 threads) */
static unsigned int default_thresholds[] = {
9, 17, 25, UINT_MAX
10, 18, 20, UINT_MAX
};
static unsigned int nr_run_last;
static unsigned int nr_run_hysteresis = 4; /* 1 / 4 thread */
static unsigned int nr_run_hysteresis = 2; /* 1 / 2 thread */
static unsigned int default_threshold_level = 4; /* 1 / 4 thread */
static unsigned int nr_run_thresholds[NR_CPUS];
@@ -68,9 +68,9 @@ static DEFINE_PER_CPU(struct runnables_avg_sample, avg_nr_sample);
/* EXP = alpha in the exponential moving average.
* Alpha = e ^ (-sample_rate / window_size) * FIXED_1
* Calculated for sample_rate of 10ms, window size of 63.82ms
* Calculated for sample_rate of 20ms, window size of 100ms
*/
#define EXP 1751
#define EXP 1677
static unsigned int get_avg_nr_runnables(void)
{