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authorSteven Rostedt (VMware)2018-11-29 22:36:47 -0500
committerSteven Rostedt (VMware)2018-12-08 20:54:08 -0500
commita7b1d74e872a4299e1aef66a648316c9c23e5ab4 (patch)
tree0288f49f37d1a8ed4cbde159669f44bd70c74d4c /kernel/trace
parent03329f9939781041424edd29487b9603a704fcd9 (diff)
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>
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/trace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index d382fd1aa4a6..194c01838e3f 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -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);