diff --git a/build/benchmark.plx b/build/benchmark.plx
new file mode 100644
index 0000000..a595ffd
--- /dev/null
+++ b/build/benchmark.plx
@@ -0,0 +1,11 @@
+a=1:b=1:c=1
+t0=millis(1)
+for j=1,1000 {
+  for i=1,10000 {
+    a=a+1
+    b=b+1
+    c=c+1
+  }
+}
+t1=millis(1)
+! t1-t0,"ms"