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| author | Christian Loehle <christian.loehle@arm.com> | 2024-06-04 11:55:29 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2024-06-07 20:55:00 +0200 |
| commit | bf183113842b0fcf4b6f977a97fa9cf8e2b21625 (patch) | |
| tree | 25fed17b41d59f4dc5866830e3f2adebd798102d /drivers/cpuidle | |
| parent | 17c4fc386b0c936d60e975d584bba4769d1471f5 (diff) | |
| download | linux-stable-bf183113842b0fcf4b6f977a97fa9cf8e2b21625.tar.gz linux-stable-bf183113842b0fcf4b6f977a97fa9cf8e2b21625.tar.bz2 linux-stable-bf183113842b0fcf4b6f977a97fa9cf8e2b21625.zip | |
cpuidle: menu: Cleanup after loadavg removal
The performance impact of loadavg was removed with commit a7fe5190c03f
("cpuidle: menu: Remove get_loadavg() from the performance multiplier")
With only iowait remaining the description can be simplified, remove
also the no longer needed includes.
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle')
| -rw-r--r-- | drivers/cpuidle/governors/menu.c | 17 |
1 files changed, 5 insertions, 12 deletions
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index b96e3da0fedd..f3c9d49f0f2a 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -14,8 +14,6 @@ #include <linux/ktime.h> #include <linux/hrtimer.h> #include <linux/tick.h> -#include <linux/sched.h> -#include <linux/sched/loadavg.h> #include <linux/sched/stat.h> #include <linux/math64.h> @@ -95,16 +93,11 @@ * state, and thus the less likely a busy CPU will hit such a deep * C state. * - * Two factors are used in determing this multiplier: - * a value of 10 is added for each point of "per cpu load average" we have. - * a value of 5 points is added for each process that is waiting for - * IO on this CPU. - * (these values are experimentally determined) - * - * The load average factor gives a longer term (few seconds) input to the - * decision, while the iowait value gives a cpu local instantanious input. - * The iowait factor may look low, but realize that this is also already - * represented in the system load average. + * Currently there is only one value determining the factor: + * 10 points are added for each process that is waiting for IO on this CPU. + * (This value was experimentally determined.) + * Utilization is no longer a factor as it was shown that it never contributed + * significantly to the performance multiplier in the first place. * */ |