Messages in this thread Patch in this message | | | Date | Mon, 13 Apr 2009 15:00:39 +0800 | From | Zhaolei <> | Subject | [PATCH] tracing: Make power trace display correct header |
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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
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