From a578c33577a5840c4d44111ddeed93e86ae411e3 Mon Sep 17 00:00:00 2001
From: Thomas Preud'homme <robotux@celest.fr>
Date: Sat, 7 Jul 2012 23:43:30 +0200
Subject: [PATCH] [commtech] Detect if perf supports -o switch

Use script in the case where perf doesn't support -o switch (old perf
version)
---
 communication_techniques/lancement.sh | 28 +++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/communication_techniques/lancement.sh b/communication_techniques/lancement.sh
index 230c113..45ed48a 100755
--- a/communication_techniques/lancement.sh
+++ b/communication_techniques/lancement.sh
@@ -24,7 +24,13 @@ logFileName="\$perfDirName/cache_\$typeCache-nbNodes_\$nbNodes-typeProd_\$typePr
 expDirName="logs"
 perfDirName="$expDirName/perfCommMulti-`date +'%F-%Hh%Mm%S'`"
 
-perfOpt="$perfOpt -o $logFileName.perf"
+perf --help stat | grep -- "  -o"
+perfOutput=$?
+
+if [ $perfOutput -eq 0 ]
+then
+	perfOpt="$perfOpt -o $logFileName.perf"
+fi
 
 export LD_LIBRARY_PATH
 
@@ -54,14 +60,24 @@ function_run () {
 	esac
 
 	make $binDir/$bin
-	cmdLineRun="eval perf $perfOpt $binDir/$bin $optTypeCache $optTypeProd $optNbNodes -n $nbIter"
+	if [ $perfOutput -eq 0 ]
+	then
+		cmdLineRun="eval perf $perfOpt $binDir/$bin $optTypeCache $optTypeProd $optNbNodes -n $nbIter"
+	else
+		cmdLineRun="eval script -c \"perf $perfOpt $binDir/$bin $optTypeCache $optTypeProd $optNbNodes -n $nbIter\" $logFileName"
+	fi
 	echo "On lance : \"$cmdLineRun\""
 	beginingDate=`date +%s`
 
-	( $cmdLineRun 2>&1 || echo "echec experience" ) | eval tee $logFileName
-	logFileNameVal="$(eval echo $logFileName)"
-	cat $logFileNameVal.perf >> $logFileNameVal
-	rm $logFileNameVal.perf
+	if [ $perfOutput -eq 0 ]
+	then
+		( $cmdLineRun 2>&1 || echo "echec experience" ) | eval tee $logFileName
+		logFileNameVal="$(eval echo $logFileName)"
+		cat $logFileNameVal.perf >> $logFileNameVal
+		rm $logFileNameVal.perf
+	else
+		( $cmdLineRun 2>&1 || echo "echec experience" )
+	fi
 	endDate=`date +%s`
 	duration_sec=`expr \( $endDate - $beginingDate \) % 60`
 	duration_min=`expr \( $endDate - $beginingDate \) / 60`