also report the size of the tar file we're untarring.

run.tar

@@ -23,14 +23,16 @@ run_tar()
 {
 	# %U=user %S=system %E=elapsed
 	mkdir ./tar || exit 1
-	cd tar
-	/usr/bin/time -f '%U,%S,%E' tar xf $TARFILE || exit 1
+	size=`ls -lh $TARFILE | awk '{print $5}'`
+	time=`/usr/bin/time -f '%U,%S,%E' tar xf $TARFILE 2>&1`
+	[ $? -eq 0 ] || exit 1
+	echo "$size,$time"
 	cd ..
 	rm -fr ./tar || exit 1
 }
 
 if [ $# -gt 0 ]; then
-	echo "user,system,elapsed"
+	echo "size,user,system,elapsed"
 	exit 0
 fi
 new_tar