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From: Changbin Du <changbin.du@gmail.com>
To: rostedt@goodmis.org
Cc: mingo@redhat.com, corbet@lwn.net, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org, Changbin Du <changbin.du@gmail.com>
Subject: [PATCH 2/5] sched/tracing: Show more info for funcgraph wakeup tracers
Date: Tue,  1 Jan 2019 23:46:11 +0800	[thread overview]
Message-ID: <20190101154614.8887-3-changbin.du@gmail.com> (raw)
In-Reply-To: <20190101154614.8887-1-changbin.du@gmail.com>

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.

Signed-off-by: Changbin Du <changbin.du@gmail.com>
---
 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)
 {
-- 
2.17.1


  parent reply	other threads:[~2019-01-01 15:47 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-01 15:46 [PATCH 0/5] Improve the latency tracers Changbin Du
2019-01-01 15:46 ` [PATCH 1/5] function_graph: Support displaying relative timestamp Changbin Du
2019-01-01 15:46 ` Changbin Du [this message]
2019-01-01 15:46 ` [PATCH 3/5] sched/tracing: Put a margin between flags and duration for wakeup tracers Changbin Du
2019-01-01 15:46 ` [PATCH 4/5] sched/tracing: Show stacktrace " Changbin Du
2019-01-16  3:25   ` Steven Rostedt
2019-01-16 16:04     ` Changbin Du
2019-01-01 15:46 ` [PATCH 5/5] trace/doc: Add latency tracer funcgraph example Changbin Du
2019-01-12  4:05 ` [PATCH 0/5] Improve the latency tracers Changbin Du
2019-01-14 15:00   ` Steven Rostedt

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