µC/OS-III provides facilities to measure the amount of time the scheduler is locked. This is done by setting the configuration constant OS_CFG_SCHED_LOCK_TIME_MEAS_EN to 1 DEF_ENABLED in os_cfg.h.
The measurement is started each time the scheduler is locked and ends when the scheduler is unlocked. The measurement keeps track of two values: a global scheduler lock time, and a per-task scheduler lock time. It is therefore possible to know how long each task locks the scheduler allowing the user to better optimize code.
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