diff options
| author | Lina Iyer <lina.iyer@linaro.org> | 2014-07-08 02:31:16 -0600 |
|---|---|---|
| committer | Amit Kucheria <amit.kucheria@linaro.org> | 2014-07-15 21:02:28 +0530 |
| commit | b2f00781df6390008afde9afb53fb6ca0cd392a6 (patch) | |
| tree | da0bb41606102318b28f9b66039a6e8d237571fe /idlestat.h | |
| parent | d3e4d966819e57a94f75cae3422c16b22b36e955 (diff) | |
Report cpuidle prediction accuracy
The patch reports the number of times a wrong c-state was choosen
under: sleep duration > target_residency of next c-state
over: sleep duration < target_residency of the current c-state
In the case of premature wakeup, the source of wakeup eg. irq is
flagged as unpredicted.
FIXME: This can be cleaned up a bit but we'll push it on account of vacations
Signed-off-by: Sandeep Tripathy <sandeep.tripathy@linaro.org>
Signed-off-by: Lina Iyer <lina.iyer@linaro.org>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Diffstat (limited to 'idlestat.h')
| -rw-r--r-- | idlestat.h | 12 |
1 files changed, 12 insertions, 0 deletions
@@ -37,6 +37,13 @@ #define IRQ_WAKEUP_UNIT_NAME "cpu" +#define CPUIDLE_STATE_TARGETRESIDENCY_PATH_FORMAT \ + "/sys/devices/system/cpu/cpu%d/cpuidle/state%d/residency" +#define CPUFREQ_AVFREQ_PATH_FORMAT \ + "/sys/devices/system/cpu/cpu%d/cpufreq/scaling_available_frequencies" +#define CPUIDLE_STATENAME_PATH_FORMAT \ + "/sys/devices/system/cpu/cpu%d/cpuidle/state%d/name" + struct cpuidle_data { double begin; double end; @@ -47,10 +54,13 @@ struct cpuidle_cstate { char *name; struct cpuidle_data *data; int nrdata; + int premature_wakeup; + int could_sleep_more; double avg_time; double max_time; double min_time; double duration; + int target_residency; /* -1 if not available */ }; enum IRQ_TYPE { @@ -64,6 +74,7 @@ struct wakeup_irq { int irq_type; char name[NAMELEN+1]; int count; + int not_predicted; }; struct wakeup_info { @@ -77,6 +88,7 @@ struct cpuidle_cstates { int last_cstate; int cstate_max; struct wakeup_irq *wakeirq; + int not_predicted; }; struct cpufreq_pstate { |