Commit 2aee44f7 authored by Tomas Glozar's avatar Tomas Glozar Committed by Steven Rostedt (Google)
Browse files

rtla: Count all processed events 

Add a field processed_events to struct trace_instance and increment it
in collect_registered_events, regardless of whether a handler is
registered for the event.

The purpose is to calculate the percentage of events that were missed
due to tracefs buffer overflow.

Cc: John Kacur <jkacur@redhat.com>
Cc: Luis Goncalves <lgoncalv@redhat.com>
Cc: Gabriele Monaco <gmonaco@redhat.com>
Link: https://lore.kernel.org/20250123142339.990300-3-tglozar@redhat.com


Signed-off-by: default avatarTomas Glozar <tglozar@redhat.com>
Signed-off-by: default avatarSteven Rostedt (Google) <rostedt@goodmis.org>
parent d6fcd28f

tools/tracing/rtla/src/trace.c

+4 −0
Original line number Diff line number Diff line
@@ -118,6 +118,8 @@ collect_registered_events(struct tep_event *event, struct tep_record *record, 
	struct trace_instance *trace = context;

	struct trace_seq *s = trace->seq;



	trace->processed_events++;



	if (!event->handler)

		return 0;
@@ -215,6 +217,8 @@ int trace_instance_init(struct trace_instance *trace, char *tool_name) 
				     collect_missed_events,

				     trace);



	trace->processed_events = 0;



	return 0;



out_err:

tools/tracing/rtla/src/trace.h

+1 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ struct trace_instance { 
	struct tep_handle		*tep;

	struct trace_seq		*seq;

	unsigned long long		missed_events;

	unsigned long long		processed_events;

};



int trace_instance_init(struct trace_instance *trace, char *tool_name);