diff --git a/test/lib/nvme/nvme.sh b/test/lib/nvme/nvme.sh
index 437c220d1..0a6990185 100755
--- a/test/lib/nvme/nvme.sh
+++ b/test/lib/nvme/nvme.sh
@@ -60,23 +60,25 @@ timing_enter arbitration
 $rootdir/examples/nvme/arbitration/arbitration -t 3
 timing_exit arbitration
 
-if false && [ $(uname -s) = Linux ]; then
+if [ $(uname -s) = Linux ]; then
 	timing_enter multi_process
-	$rootdir/examples/nvme/arbitration/arbitration -s 4096 -t 10 &
+	$rootdir/examples/nvme/arbitration/arbitration -s 4096 -t 10 -c 0xf &
 	pid=$!
 	sleep 3
-	$rootdir/examples/nvme/perf/perf -q 1 -w randread -s 4096 -t 10 &
+	$rootdir/examples/nvme/perf/perf -q 1 -w randread -s 4096 -t 10 -c 0x10 &
 	sleep 1
 	kill -9 $!
 	count=0
 	while [ $count -le 2 ]; do
-		$rootdir/examples/nvme/perf/perf -q 1 -w read -s 4096 -t 1
-		count=$(( $count + 1 ))
+		$rootdir/examples/nvme/perf/perf -q 1 -w read -s 4096 -t 1 -c 0x10
+		count=$(($count + 1))
 	done
 	count=0
 	while [ $count -le 1 ]; do
-		$rootdir/examples/nvme/perf/perf -q 128 -w read -s 4096 -t 1 &
-		count=$(( $count + 1 ))
+		core=$((1 << (($count + 4))))
+		printf -v hexcore "0x%x" "$core"
+		$rootdir/examples/nvme/perf/perf -q 128 -w read -s 4096 -t 1 -c $hexcore &
+		count=$(($count + 1))
 	done
 	wait $pid
 	timing_exit multi_process