Hello, I am using an RT kernel and in my driver there is an atomic code path that just makes some critical I/O operations. I would like to trigger a system function trace when kernel enters into a specific function in my driver and stop the system trace at the end of the function. I would like to identify time execution latencies for a specific code path. I am using Cortex A9 and I have perf and PMU up and running, but still it is not clear to me how to retrieve the traces with those latencies in my code path. Any ideas how to trace/measure that will be very much appreciated. Best regards, Andy -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
