[PATCH] trace-cmd: annotate function durations like the kernel

From: Omar Sandoval
Date: Wed Jun 24 2015 - 14:37:58 EST


Since kernel commit, 8e1e1df29d83 ("tracing: Add additional marks to
signal very large time deltas") the kernel annotates durations longer
than 1000 usecs with # and longer than 1 sec with $. Update trace-cmd
report to be consistent with it.

Signed-off-by: Omar Sandoval <osandov@xxxxxx>
---
Just a minor cosmetic issue I noticed. Thanks!

trace-ftrace.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/trace-ftrace.c b/trace-ftrace.c
index bdf11ce4c2dd..636b08b5cdef 100644
--- a/trace-ftrace.c
+++ b/trace-ftrace.c
@@ -147,11 +147,19 @@ static void print_graph_overhead(struct trace_seq *s,
if (duration == ~0ULL)
return (void)trace_seq_printf(s, " ");

- /* Duration exceeded 100 msecs */
+ /* Duration exceeded 1 sec */
+ if (duration > 1000000000ULL)
+ return (void)trace_seq_printf(s, "$ ");
+
+ /* Duration exceeded 1000 usecs */
+ if (duration > 1000000ULL)
+ return (void)trace_seq_printf(s, "# ");
+
+ /* Duration exceeded 100 usecs */
if (duration > 100000ULL)
return (void)trace_seq_printf(s, "! ");

- /* Duration exceeded 10 msecs */
+ /* Duration exceeded 10 usecs */
if (duration > 10000ULL)
return (void)trace_seq_printf(s, "+ ");

--
2.4.4

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