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* [PATCH] tracing: Make power trace display correct header
@ 2009-04-13  7:00 Zhaolei
  2009-04-13  7:23 ` [PATCH v2] " Zhaolei
  0 siblings, 1 reply; 3+ messages in thread
From: Zhaolei @ 2009-04-13  7:00 UTC (permalink / raw)
  To: Steven Rostedt, Frederic Weisbecker, Tom Zanussi, Ingo Molnar
  Cc: linux-kernel

Before patch:
  # tracer: power
  #
  #           TASK-PID    CPU#    TIMESTAMP  FUNCTION
  #              | |       |          |         |
  [  676.875865889] CSTATE: Going to C1 on cpu 0 for 0.005911463
  [  676.882938805] CSTATE: Going to C1 on cpu 0 for 0.104796532
  ...

After patch:
  # tracer: power
  #
  #   TIMESTAMP      STATE  EVENT
  #       |            |      |
  [  676.875865889] CSTATE: Going to C1 on cpu 0 for 0.005911463
  [  676.882938805] CSTATE: Going to C1 on cpu 0 for 0.104796532
  ...

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
---
 kernel/trace/trace_power.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/kernel/trace/trace_power.c b/kernel/trace/trace_power.c
index 810a5b7..a74acdf 100644
--- a/kernel/trace/trace_power.c
+++ b/kernel/trace/trace_power.c
@@ -190,6 +190,12 @@ static enum print_line_t power_print_line(struct trace_iterator *iter)
 	return TRACE_TYPE_UNHANDLED;
 }
 
+static void power_print_header(struct seq_file *s)
+{
+	seq_printf(s, "#   TIMESTAMP      STATE  EVENT\n");
+	seq_printf(s, "#       |            |      |\n");
+}
+
 static struct tracer power_tracer __read_mostly =
 {
 	.name		= "power",
@@ -198,6 +204,7 @@ static struct tracer power_tracer __read_mostly =
 	.stop		= stop_power_trace,
 	.reset		= power_trace_reset,
 	.print_line	= power_print_line,
+	.print_header	= power_print_header,
 };
 
 static int init_power_trace(void)
-- 
1.5.5.3



^ permalink raw reply related	[flat|nested] 3+ messages in thread

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Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2009-04-13  7:00 [PATCH] tracing: Make power trace display correct header Zhaolei
2009-04-13  7:23 ` [PATCH v2] " Zhaolei
2009-04-13 21:46   ` [tip:tracing/urgent] tracing: Fix power tracer header tip-bot for Zhaolei

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