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[PATCH 6/7] perf, tools, stat: Add --metric-only support for -A

From Andi Kleen <andi@firstfloor.org>
Newsgroups linux.kernel
Subject [PATCH 6/7] perf, tools, stat: Add --metric-only support for -A
Date 2016-03-03 01:30 +0100
Message-ID <r8pjs-7pC-23@gated-at.bofh.it> (permalink)
References <r8pjs-7pC-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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From: Andi Kleen <ak@linux.intel.com>

Add metric only support for -A too. This requires a new print
function that prints the metrics in the right order.

v2: Fix manpage
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/Documentation/perf-stat.txt |  2 +-
 tools/perf/builtin-stat.c              | 48 ++++++++++++++++++++++++++++------
 2 files changed, 41 insertions(+), 9 deletions(-)

diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 271f71d..341757a 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -141,7 +141,7 @@ The overhead percentage could be high in some cases, for instance with small, su
 
 --metric-only::
 Only print computed metrics. Print them in a single line.
-Don't show any raw values. Not supported with -A or --per-thread.
+Don't show any raw values. Not supported with --per-thread.
 
 --per-socket::
 Aggregate counts per processor socket for system-wide mode measurements.  This
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 0196fed..42975ae 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1250,10 +1250,43 @@ static void print_counter(struct perf_evsel *counter, char *prefix)
 	}
 }
 
+static void print_no_aggr_metric(char *prefix)
+{
+	int cpu;
+	int nrcpus = 0;
+	struct perf_evsel *counter;
+	u64 ena, run, val;
+	double uval;
+
+	evlist__for_each(evsel_list, counter) {
+		nrcpus = perf_evsel__nr_cpus(counter);
+		break;
+	}
+	for (cpu = 0; cpu < nrcpus; cpu++) {
+		bool first = true;
+
+		if (prefix)
+			fputs(prefix, stat_config.output);
+		evlist__for_each(evsel_list, counter) {
+			if (first) {
+				aggr_printout(counter, cpu, 0);
+				first = false;
+			}
+			val = perf_counts(counter->counts, cpu, 0)->val;
+			ena = perf_counts(counter->counts, cpu, 0)->ena;
+			run = perf_counts(counter->counts, cpu, 0)->run;
+
+			uval = val * counter->scale;
+			printout(cpu, 0, counter, uval, prefix, run, ena, 1.0);
+		}
+		fputc('\n', stat_config.output);
+	}
+}
+
 static int aggr_header_lens[] = {
 	[AGGR_CORE] = 18,
 	[AGGR_SOCKET] = 12,
-	[AGGR_NONE] = 15,
+	[AGGR_NONE] = 6,
 	[AGGR_THREAD] = 24,
 	[AGGR_GLOBAL] = 0,
 };
@@ -1408,8 +1441,12 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
 			fputc('\n', stat_config.output);
 		break;
 	case AGGR_NONE:
-		evlist__for_each(evsel_list, counter)
-			print_counter(counter, prefix);
+		if (metric_only)
+			print_no_aggr_metric(prefix);
+		else {
+			evlist__for_each(evsel_list, counter)
+				print_counter(counter, prefix);
+		}
 		break;
 	case AGGR_UNSET:
 	default:
@@ -2177,11 +2214,6 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 		goto out;
 	}
 
-	if (metric_only && stat_config.aggr_mode == AGGR_NONE) {
-		fprintf(stderr, "--metric-only is not supported with -A\n");
-		goto out;
-	}
-
 	if (metric_only && run_count > 1) {
 		fprintf(stderr, "--metric-only is not supported with -r\n");
 		goto out;
-- 
2.5.0

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Thread

perf, tools: Refactor and support interval and CSV metrics Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100
  [PATCH 1/7] perf, tools, stat: Check existence of frontend/backed stalled cycles Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100
  [PATCH 5/7] perf, tools, stat: Implement --metric-only mode Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100
  [PATCH 6/7] perf, tools, stat: Add --metric-only support for -A Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100
    Re: [PATCH 6/7] perf, tools, stat: Add --metric-only support for -A Jiri Olsa <jolsa@redhat.com> - 2016-03-03 12:40 +0100
  [PATCH 4/7] perf, tools, stat: Document CSV format in manpage Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100
    Re: [PATCH 4/7] perf, tools, stat: Document CSV format in manpage Jiri Olsa <jolsa@redhat.com> - 2016-03-03 09:20 +0100
  [PATCH 3/7] perf, tools, stat: Support metrics in --per-core/socket mode Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100
  [PATCH 7/7] perf, tools, stat: Check for frontend stalled for metrics Andi Kleen <andi@firstfloor.org> - 2016-03-03 01:30 +0100

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