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rtla: Count all processed events

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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: Tomas Glozar <tglozar@redhat.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Tomas Glozar 2025-01-23 15:23:37 +01:00 committed by Steven Rostedt (Google)
parent d6fcd28ffe
commit 2aee44f721
2 changed files with 5 additions and 0 deletions
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4
tools/tracing/rtla/src/trace.c
View File

@ -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:

1
tools/tracing/rtla/src/trace.h
View File

@ -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);