adaptivemm: add data collection & replay capability

Signed-off-by: George Kennedy <[email protected]>

Author: gkennedy12

adaptived/dist/adaptivemmd_data_capture_and_validate.sh

@@ -0,0 +1,131 @@
+
+if [ ! -f ../../adaptivemmd ] ; then
+	echo "Cannot find ../../adaptivemmd"
+	exit
+fi
+
+setup()
+{
+	echo "Checking adaptivemmd config file in /etc/default..."
+	if [ ! -f /etc/default/adaptivemmd ] ; then
+		echo "/etc/default/adaptivemmd missing. Must setup first."
+		exit
+	fi
+	echo ==============================================================
+	cat /etc/default/adaptivemmd
+	echo ==============================================================
+	echo "If above config not correct, hit <Control-C> to exit and make changes to /etc/default/adaptivemmd"
+	echo -n "Else hit <Enter> to continue: "
+	read ANS
+}
+
+usage()
+{
+	echo "usage: $0 <-d sample_directory> [-l <max_loops>] [-m <maxgap>] [-a][-C][-R][-V][-h]" ; exit ;
+}
+
+CAPTURE=false
+REPLAY=false
+VALIDATE=false
+MAXGAP=0
+
+MAX_LOOPS=10
+
+while getopts aCRVd:l:m:h name
+do
+	case $name in
+	a)	CAPTURE=true ; REPLAY=true ; VALIDATE=true ;;
+	C)	CAPTURE=true ;;
+	R)	REPLAY=true ;;
+	V)	VALIDATE=true ;;
+	d)	DIR="$OPTARG" ;;
+	l)	MAX_LOOPS="$OPTARG" ;;
+	m)	MAXGAP="$OPTARG" ;;
+	h)	usage ;;
+	*)	usage ;;
+	esac
+done
+
+if [ -z "$DIR" ] ; then
+	usage
+fi
+
+if ! $CAPTURE && ! $REPLAY && ! $VALIDATE ; then
+	usage
+fi
+
+if $CAPTURE || $REPLAY ; then
+	setup
+fi
+
+if $CAPTURE ; then
+	echo
+	echo "Run adaptivemmd and capture data.."
+	echo
+
+	if [ -d "$DIR" ] ; then
+		echo -n "Capture directory ($DIR) cannot exist to avoid overwrite. Hit <Enter> to remove it: "
+		read ANS
+		rm -rf $DIR
+	fi
+	rm -f /tmp/capture.out
+
+	echo -n "Current value of /proc/sys/vm/watermark_scale_factor: "
+	cat /proc/sys/vm/watermark_scale_factor
+
+	echo
+	echo -n "Enter new value (max 1000) or just <Enter> to continue: "
+	read M
+	if [ ! -z "$M" ] ; then
+		if [ $M -gt 1000 ] ; then
+			echo "Value entered is too large! Setting value to 1000."
+			M=1000
+		fi
+		echo $M > /proc/sys/vm/watermark_scale_factor
+		cat /proc/sys/vm/watermark_scale_factor
+	fi
+
+	pkill adaptivemmd
+	rm -f /var/run/adaptivemmd.pid
+	ps -ed |grep adaptivemmd
+
+	CMD="../../adaptivemmd -a 3 -d -vvvvv -C -m $MAXGAP -l $MAX_LOOPS -S $DIR"
+	echo $CMD
+	$CMD 2>&1 |tee /tmp/capture.out
+fi
+if [ ! -d $DIR ] ; then
+	echo "Cannot find Capture directory with previously captured sample data."
+	exit
+fi
+if $REPLAY ; then
+	echo
+	echo "Run adaptivemmd and replay captured data.."
+	echo
+
+	rm -f /tmp/replay.out
+	
+	if [ -d /tmp/adaptivemmd_data_capture_and_validate_REPLAY ] ; then
+		rm -rf /tmp/adaptivemmd_data_capture_and_validate_REPLAY
+	fi
+	cp -rp $DIR /tmp/adaptivemmd_data_capture_and_validate_REPLAY
+
+	pkill adaptivemmd
+	rm -f /var/run/adaptivemmd.pid
+	ps -ed |grep adaptivemmd
+
+	CMD="../../adaptivemmd -a 3 -d -vvvvv -R -m $MAXGAP -l $MAX_LOOPS -S /tmp/adaptivemmd_data_capture_and_validate_REPLAY"
+	echo $CMD
+	$CMD 2>&1 |tee /tmp/replay.out
+fi
+if ! $VALIDATE ; then exit ; fi
+
+echo
+echo "Validate adaptivemmd captured data.."
+echo
+grep "reclamation rate" /tmp/capture.out /tmp/replay.out >/dev/null 2>&1
+if [ $? = 0 ] ; then
+	echo "NOTE: ignore any \"reclamation rate\" diffs (they are timing diffs between capture & replay)."
+	echo
+fi
+set -x
+diff /tmp/capture.out /tmp/replay.out