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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-10-12 08:26:39 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2021-10-25 08:01:02 +0200 |
commit | 0221da5f56353c9b238ef51d5a24802ba67b8c56 (patch) | |
tree | 4823b8d298eb678c20db4078c2ec8e1e13fa52e5 /cpukit/libmisc/cpuuse/cpuusagereset.c | |
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 '')
-rw-r--r-- | cpukit/libmisc/cpuuse/cpuusagereset.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/cpukit/libmisc/cpuuse/cpuusagereset.c b/cpukit/libmisc/cpuuse/cpuusagereset.c index 10d8ebec48..d1f0e65180 100644 --- a/cpukit/libmisc/cpuuse/cpuusagereset.c +++ b/cpukit/libmisc/cpuuse/cpuusagereset.c @@ -40,7 +40,8 @@ static bool CPU_usage_Per_thread_handler( scheduler = _Thread_Scheduler_get_home( the_thread ); _Scheduler_Acquire_critical( scheduler, &scheduler_lock_context ); - _Timestamp_Set_to_zero( &the_thread->cpu_time_used ); + the_thread->cpu_time_used_at_last_reset = + _Thread_Get_CPU_time_used_locked( the_thread ); _Scheduler_Release_critical( scheduler, &scheduler_lock_context ); _Thread_State_release( the_thread, &state_lock_context ); |