| Message ID | 20250116144931.649593-5-tglozar@redhat.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | rtla/timerlat: Stop on signal properly when overloaded | expand |
diff --git a/tools/tracing/rtla/src/timerlat_hist.c b/tools/tracing/rtla/src/timerlat_hist.c index e8d249e22251..d0a4d20b7196 100644 --- a/tools/tracing/rtla/src/timerlat_hist.c +++ b/tools/tracing/rtla/src/timerlat_hist.c @@ -1149,6 +1149,14 @@ static int stop_tracing; static struct trace_instance *hist_inst = NULL; static void stop_hist(int sig) { + if (stop_tracing) { + /* + * Stop requested twice in a row; abort event processing and + * exit immediately + */ + tracefs_iterate_stop(hist_inst->inst); + return; + } stop_tracing = 1; if (hist_inst) trace_instance_stop(hist_inst);
If either SIGINT is received twice, or after a SIGALRM (that is, after timerlat was supposed to stop), abort processing events currently left in the tracefs buffer and exit immediately. This allows the user to exit rtla without waiting for processing all events, should that take longer than wanted, at the cost of not processing all samples. Signed-off-by: Tomas Glozar <tglozar@redhat.com> --- tools/tracing/rtla/src/timerlat_hist.c | 8 ++++++++ 1 file changed, 8 insertions(+)