[for-next][PATCH 05/29] tracing: Show more info for funcgraph wakeup tracers
From: Steven Rostedt
Date: Wed Feb 20 2019 - 13:40:23 EST
From: Changbin Du <changbin.du@xxxxxxxxx>
Add these info fields to funcgraph wakeup tracers:
o Show CPU info since the waker could be on a different CPU.
o Show function duration and overhead.
o Show IRQ markers.
Link: http://lkml.kernel.org/r/20190101154614.8887-3-changbin.du@xxxxxxxxx
Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx>
Signed-off-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx>
---
kernel/trace/trace_sched_wakeup.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index b6c5fa10347e..da5b6e012840 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -180,8 +180,11 @@ static void wakeup_trace_close(struct trace_iterator *iter)
}
#define GRAPH_TRACER_FLAGS (TRACE_GRAPH_PRINT_PROC | \
+ TRACE_GRAPH_PRINT_CPU | \
TRACE_GRAPH_PRINT_REL_TIME | \
- TRACE_GRAPH_PRINT_DURATION)
+ TRACE_GRAPH_PRINT_DURATION | \
+ TRACE_GRAPH_PRINT_OVERHEAD | \
+ TRACE_GRAPH_PRINT_IRQS)
static enum print_line_t wakeup_print_line(struct trace_iterator *iter)
{
--
2.20.1