[tip:perf/core] perf report: Add report.percent-limit config variable

[tip-bot for Namhyung Kim]

Commit-ID:  eec574e6bc3ee4558d4a282e0e3e1bd6dd0ad67b
Gitweb:     http://git.kernel.org/tip/eec574e6bc3ee4558d4a282e0e3e1bd6dd0ad67b
Author:     Namhyung Kim <namhyung.kim@xxxxxxx>
AuthorDate: Tue, 14 May 2013 11:09:06 +0900
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 28 May 2013 16:24:02 +0300

perf report: Add report.percent-limit config variable

Now an user can set a default value of --percent-limit option into the
perfconfig file.

  $ cat ~/.perfconfig
  [report]
  percent-limit = 0.1

Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
Acked-by: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1368497347-9628-9-git-send-email-namhyung@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-report.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 0a4979b..ca98d34 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -62,6 +62,11 @@ static int perf_report_config(const char *var, const char *value, void *cb)
 		symbol_conf.event_group = perf_config_bool(var, value);
 		return 0;
 	}
+	if (!strcmp(var, "report.percent-limit")) {
+		struct perf_report *rep = cb;
+		rep->min_percent = strtof(value, NULL);
+		return 0;
+	}
 
 	return perf_default_config(var, value, cb);
 }
@@ -823,7 +828,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_END()
 	};
 
-	perf_config(perf_report_config, NULL);
+	perf_config(perf_report_config, &report);
 
 	argc = parse_options(argc, argv, options, report_usage, 0);
 
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