Commit a7b1d74e authored Nov 29, 2018 by Steven Rostedt (VMware)

tracing: Change default buffer_percent to 50

After running several tests, it appears that having the reader wait till
half the buffer is full before starting to read (and causing its own events
to fill up the ring buffer constantly), works well. It keeps trace-cmd (the
main user of this interface) from dominating the traces it records.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

parent 03329f99

kernel/trace/trace.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -8017,7 +8017,7 @@ init_tracer_tracefs(struct trace_array tr, struct dentry d_tracer)
		trace_create_file("timestamp_mode", 0444, d_tracer, tr,
		&trace_time_stamp_mode_fops);

		tr->buffer_percent = 1;
		tr->buffer_percent = 50;

		trace_create_file("buffer_percent", 0444, d_tracer,
		tr, &buffer_percent_fops);