To visualize traces, the binary file has to be read and decoded.
This step is achieved by ptt_view
(to decode in a text file)
or the ptt_paje
(to create an input file for
The output format and filter options can be chosen
by setting ptt's options.
provides three kinds of information
to measure contention in an application:
- global contention time:
waiting time for all threads of the application.
- contention time per thread: waiting time for each thread.
- contention time per NPTL objects:
waiting time for each mutex, barrier, cond_var and semaphores.
ptt_stat gives information on the binary data.
ptt_seq is a little tool which gives
the timestamp of the first event in the binary file.
This can be usesul when trace splitting is enabled in
and so, when several binary files are created.