From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1753924AbcENBpo (ORCPT <rfc822;w@1wt.eu>);
	Fri, 13 May 2016 21:45:44 -0400
Received: from mga09.intel.com ([134.134.136.24]:36556 "EHLO mga09.intel.com"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1753902AbcENBpl (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Fri, 13 May 2016 21:45:41 -0400
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="5.24,615,1455004800"; 
   d="scan'208";a="966250432"
From: Andi Kleen <andi@firstfloor.org>
To: acme@kernel.org
Cc: peterz@infradead.org, jolsa@kernel.org, mingo@kernel.org,
        linux-kernel@vger.kernel.org, Andi Kleen <ak@linux.intel.com>
Subject: [PATCH 6/8] perf stat: Avoid fractional digits for integer scales
Date: Fri, 13 May 2016 18:44:55 -0700
Message-Id: <1463190297-17408-7-git-send-email-andi@firstfloor.org>
X-Mailer: git-send-email 2.5.5
In-Reply-To: <1463190297-17408-1-git-send-email-andi@firstfloor.org>
References: <1463190297-17408-1-git-send-email-andi@firstfloor.org>
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

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

When the scaling factor is a full integer don't display fractional
digits. This avoids unnecessary .00 output for topdown metrics
with scale factors.

v2: Remove redundant check.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/builtin-stat.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 5645a8361de6..db84bfc0a478 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -66,6 +66,7 @@
 #include <stdlib.h>
 #include <sys/prctl.h>
 #include <locale.h>
+#include <math.h>
 
 #define DEFAULT_SEPARATOR	" "
 #define CNTR_NOT_SUPPORTED	"<not supported>"
@@ -986,12 +987,12 @@ static void abs_printout(int id, int nr, struct perf_evsel *evsel, double avg)
 	const char *fmt;
 
 	if (csv_output) {
-		fmt = sc != 1.0 ?  "%.2f%s" : "%.0f%s";
+		fmt = floor(sc) != sc ?  "%.2f%s" : "%.0f%s";
 	} else {
 		if (big_num)
-			fmt = sc != 1.0 ? "%'18.2f%s" : "%'18.0f%s";
+			fmt = floor(sc) != sc ? "%'18.2f%s" : "%'18.0f%s";
 		else
-			fmt = sc != 1.0 ? "%18.2f%s" : "%18.0f%s";
+			fmt = floor(sc) != sc ? "%18.2f%s" : "%18.0f%s";
 	}
 
 	aggr_printout(evsel, id, nr);
-- 
2.5.5