michaelh/zephyr
1
0
Fork 0
Code Releases Activity

tests: Fix bias adjustment in latency_measure

Browse source 
Updates the non-blocking semaphore and mutex benchmark sub-tests in
the latency_measure benchmark to remove the timestamp bias adjustment.
As the timestamps are not sampled during each iteration of those
sub-tests, there is no need to correct for any bias from the sampling.

Signed-off-by: Peter Mitsis <peter.mitsis@intel.com>
This commit is contained in:
Peter Mitsis 2023-12-13 15:40:35 -05:00 • committed by Fabio Baltieri
commit 6b1a3207dd
2 changed files with 0 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

2
tests/benchmarks/latency_measure/src/mutex_lock_unlock.c
View file

@ -91,7 +91,6 @@ int mutex_lock_unlock(uint32_t num_iterations, uint32_t options)
k_thread_start(&start_thread);
cycles = timestamp.cycles;
cycles -= timestamp_overhead_adjustment(options, options);
k_sem_give(&pause_sem);
snprintf(description, sizeof(description),
@ -101,7 +100,6 @@ int mutex_lock_unlock(uint32_t num_iterations, uint32_t options)
false, "");
cycles = timestamp.cycles;
cycles -= timestamp_overhead_adjustment(options, options);
snprintf(description, sizeof(description),
"Unlock a mutex from %s thread",

2
tests/benchmarks/latency_measure/src/sema_test_signal_release.c
View file

@ -253,7 +253,6 @@ int sema_test_signal(uint32_t num_iterations, uint32_t options)
/* 5. Retrieve the number of cycles spent giving the semaphore */
cycles = timestamp.cycles;
cycles -= timestamp_overhead_adjustment(options, options);
snprintf(description, sizeof(description),
"Give a semaphore (no waiters) from %s thread",
@ -273,7 +272,6 @@ int sema_test_signal(uint32_t num_iterations, uint32_t options)
/* 9. Retrieve the number of cycles spent taking the semaphore */
cycles = timestamp.cycles;
cycles -= timestamp_overhead_adjustment(options, options);
snprintf(description, sizeof(description),
"Take a semaphore (no blocking) from %s thread",