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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-12-10 14:30:23 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-12-13 01:22:18 +0300 |
| commit | 04dab58a39d402162a7effe7278df8cd41557252 (patch) | |
| tree | 72ef8dca1e3a3d56bf68ce729678c638dd247e8b /drivers/cpuidle/sysfs.c | |
| parent | 9456823c842f346c74265fcd98d008d87a7eb6f5 (diff) | |
| download | linux-04dab58a39d402162a7effe7278df8cd41557252.tar.xz | |
cpuidle: Add 'above' and 'below' idle state metrics
Add two new metrics for CPU idle states, "above" and "below", to count
the number of times the given state had been asked for (or entered
from the kernel's perspective), but the observed idle duration turned
out to be too short or too long for it (respectively).
These metrics help to estimate the quality of the CPU idle governor
in use.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpuidle/sysfs.c')
| -rw-r--r-- | drivers/cpuidle/sysfs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index e754c7aae7f7..eb20adb5de23 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -301,6 +301,8 @@ define_show_state_str_function(name) define_show_state_str_function(desc) define_show_state_ull_function(disable) define_store_state_ull_function(disable) +define_show_state_ull_function(above) +define_show_state_ull_function(below) define_one_state_ro(name, show_state_name); define_one_state_ro(desc, show_state_desc); @@ -310,6 +312,8 @@ define_one_state_ro(power, show_state_power_usage); define_one_state_ro(usage, show_state_usage); define_one_state_ro(time, show_state_time); define_one_state_rw(disable, show_state_disable, store_state_disable); +define_one_state_ro(above, show_state_above); +define_one_state_ro(below, show_state_below); static struct attribute *cpuidle_state_default_attrs[] = { &attr_name.attr, @@ -320,6 +324,8 @@ static struct attribute *cpuidle_state_default_attrs[] = { &attr_usage.attr, &attr_time.attr, &attr_disable.attr, + &attr_above.attr, + &attr_below.attr, NULL }; |