3 ms·
The problem is not the timestamping, it's the queue used to push profiling events which is not fast enough
by Galanwe 2y ago
The problem is not the timestamping, it's the queue used to push profiling events which is not fast enough
- vardump 2y agoThat queue is about as fast as it gets, <10 ns. Timestamp is taken before queueing. Again, due to bad calibration code the measured timestamps have quite a bit jitter. Edit: TSC might not be synchronized in multi-socket systems. (Multiple physical CPU sockets). That can generate a large error.