diff --git a/communication_techniques/lancement.sh b/communication_techniques/lancement.sh
index 69e3dfe..30b2646 100755
--- a/communication_techniques/lancement.sh
+++ b/communication_techniques/lancement.sh
@@ -25,6 +25,8 @@ logFileName="\$perfDirName/cache_\$typeCache-nbNodes_\$nbNodes-typeProd_\$typePr
 expDirName="logs"
 perfDirName="$expDirName/perfCommMulti-`date +'%F-%Hh%Mm%S'`"
 
+perfOpt="$perfOpt -o $logFileName.perf"
+
 export LD_LIBRARY_PATH
 
 [ -d "$expDirName" ] || mkdir "$expDirName"
@@ -53,11 +55,13 @@ function_run () {
 	esac
 
 	make $binDir/$bin
-	cmdLineRun="perf $perfOpt $binDir/$bin $optTypeCache $optTypeProd $optNbNodes -d -n $nbIter"
+	cmdLineRun="eval perf $perfOpt $binDir/$bin $optTypeCache $optTypeProd $optNbNodes -d -n $nbIter"
 	echo "On lance : \"$cmdLineRun\""
 	beginingDate=`date +%s`
 
 	( $cmdLineRun 2>&1 || echo "echec experience" ) | eval tee $logFileName
+	eval cat $logFileName.perf >> $logFileName
+	eval rm $logFileName.perf
 	endDate=`date +%s`
 	duration_sec=`expr \( $endDate - $beginingDate \) % 60`
 	duration_min=`expr \( $endDate - $beginingDate \) / 60`