//process_in = lttv_state_find_process(ts, ANY_CPU, pid_in);
//process_in = tfs->process;
guint cpu = lttv_traceset_get_cpuid_from_event(event);
//process_in = lttv_state_find_process(ts, ANY_CPU, pid_in);
//process_in = tfs->process;
guint cpu = lttv_traceset_get_cpuid_from_event(event);