diff --git a/cmd/tools/fast/fast.v b/cmd/tools/fast/fast.v
index 67d3899316..532bb4586e 100644
--- a/cmd/tools/fast/fast.v
+++ b/cmd/tools/fast/fast.v
@@ -40,7 +40,7 @@ fn main() {
 	exec('v -o $vdir/vprod -prod $vdir/cmd/v')
 	diff1 := measure('$vdir/vprod -cc clang -o v.c -show-timings $vdir/cmd/v', 'v.c')
 	diff2 := measure('$vdir/vprod -cc tcc -o v2 $vdir/cmd/v', 'v2')
-	diff3 := measure('$vdir/vprod -x64 $vdir/cmd/tools/1mil.v', 'x64 1mil')
+	diff3 := 0 // measure('$vdir/vprod -x64 $vdir/cmd/tools/1mil.v', 'x64 1mil')
 	diff4 := measure('$vdir/vprod -cc clang $vdir/examples/hello_world.v', 'hello.v')
 	vc_size := os.file_size('v.c') / 1000
 	// parse/check/cgen