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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-10-12 08:26:39 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-10-25 08:01:02 +0200 |
| commit | 0221da5f56353c9b238ef51d5a24802ba67b8c56 (patch) | |
| tree | 4823b8d298eb678c20db4078c2ec8e1e13fa52e5 /cpukit/include/rtems/rtems | |
| parent | score: Optimize default idle task stack allocator (diff) | |
| download | rtems-0221da5f56353c9b238ef51d5a24802ba67b8c56.tar.bz2 | |
rtems: Fix rate monotonic statistics
The rate monotonic period statistics were affected by
rtems_cpu_usage_reset(). The logic to detect and work around a CPU
usage reset was broken.
The Thread_Contol::cpu_time_used is changed to contain the processor
time used throughout the entire lifetime of the thread. The new member
Thread_Contol::cpu_time_used_at_last_reset is added to contain the
processor time used at the time of the last reset through
rtems_cpu_usage_reset(). This decouples the resets of the CPU usage and
the rate monotonic period statistics.
Update #4528.
Diffstat (limited to 'cpukit/include/rtems/rtems')
| -rw-r--r-- | cpukit/include/rtems/rtems/ratemonimpl.h | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/cpukit/include/rtems/rtems/ratemonimpl.h b/cpukit/include/rtems/rtems/ratemonimpl.h index 7e42a0437c..62327c5b09 100644 --- a/cpukit/include/rtems/rtems/ratemonimpl.h +++ b/cpukit/include/rtems/rtems/ratemonimpl.h @@ -92,7 +92,7 @@ RTEMS_INLINE_ROUTINE Rate_monotonic_Control *_Rate_monotonic_Get( void _Rate_monotonic_Timeout( Watchdog_Control *watchdog ); /** - * @brief _Rate_monotonic_Get_status( + * @brief Gets the rate monotonic CPU usage status. * * This routine is invoked to compute the elapsed wall time and cpu * time for a period. @@ -102,11 +102,8 @@ void _Rate_monotonic_Timeout( Watchdog_Control *watchdog ); * since the period was initiated. * @param[out] cpu_since_last_period is set to the cpu time used by the * owning thread since the period was initiated. - * - * @retval This routine returns true if the status can be determined - * and false otherwise. */ -bool _Rate_monotonic_Get_status( +void _Rate_monotonic_Get_status( const Rate_monotonic_Control *the_period, Timestamp_Control *wall_since_last_period, Timestamp_Control *cpu_since_last_period |