This option determines whether the ETM operates in cycle-accurate mode. When this option is selected, the ETM records the number of cycles executed while tracing is enabled. The Elem column of the Analysis window shows the cycle number of the cycle in which each instruction was executed. The count does not include cycles executed during a trace discontinuity. You must use the Time/unit column, which displays timestamp values, to measure across discontinuities in the trace output.

   If you want to view profiling statistics, you must enable either timestamping or cycle accurate tracing, or both. Better results are generally obtained with timestamping enabled.

Cycle-accurate tracing fills up the capture buffer faster than non cycle-accurate tracing because all wait cycles are captured.