linux-kernel - [PATCH 06/19] perf trace: Fix summary

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Date:	Sat, 21 Mar 2015 15:54:25 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org, David Ahern <dsahern@...il.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 06/19] perf trace: Fix summary_only option

From: David Ahern <dsahern@...il.com>

The intent of the -s/--summary-only option is to just show a summary of
the system calls and statistics without any of the individual events.
Commit e596663ebb2 broke that by showing the interrupted lines:

perf trace -i perf.data -s
...
     0.741 ( 0.000 ms): sleep/31316 fstat(fd: 4, statbuf: 0x7ffc75ceb830                                  ) ...
     0.744 ( 0.000 ms): sleep/31316 mmap(len: 100244, prot: READ, flags: PRIVATE, fd: 4                   ) ...
     0.747 ( 0.000 ms): perf/31315 write(fd: 3, buf: 0x7d4bb0, count: 8                                  ) ...
...

Fix by checking for the summary only option.

Signed-off-by: David Ahern <dsahern@...il.com>
Link: http://lkml.kernel.org/r/1426789383-19023-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0b3b4e4984b9..6af6bcec930e 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1724,7 +1724,8 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 			return -1;
 	}
 
-	printed += trace__printf_interrupted_entry(trace, sample);
+	if (!trace->summary_only)
+		printed += trace__printf_interrupted_entry(trace, sample);
 
 	ttrace->entry_time = sample->time;
 	msg = ttrace->entry_str;
-- 
1.9.3

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