Collect synchronization wait tracing data. The allowed values of option are:
all– Enable synchronization wait tracing with a zero threshold. This option forces all synchronization events to be recorded.
calibrate– Enable synchronization wait tracing and set the threshold value by calibration at runtime. (Equivalent to on.)
off– Disable synchronization wait tracing.
on– Enable synchronization wait tracing with the default threshold, which is to set the value by calibration at runtime. (Equivalent to calibrate.)
value– Set the threshold to value, given as a positive integer in microseconds.
Synchronization wait tracing data is not recorded for Java monitors.