diff --git a/single-core-mode.sh b/single-core-mode.sh
new file mode 100755
index 0000000..7fad52b
--- /dev/null
+++ b/single-core-mode.sh
@@ -0,0 +1,10 @@
+#!/bin/bash
+
+if [ "$EUID" -ne 0 ]; then
+    echo "This script must be run as root" 1>&2
+    exit 1
+fi
+
+for cpu in /sys/devices/system/cpu/cpu[1-9]*; do
+    echo 0 > "$cpu/online"
+done