Add option to use old random and a benchmark

packages/core/bench/signal.bench.mjs

@@ -0,0 +1,46 @@
+import { describe, bench } from 'vitest';
+
+import { calculateSteps, rand, useOldRandom } from '../index.mjs';
+
+const testingResolution = 1024;
+
+const _generateRandomPattern = () => rand.iter(testingResolution).fast(testingResolution).firstCycle();
+
+describe('random', () => {
+  calculateSteps(true);
+  bench(
+    '+tactus',
+    _generateRandomPattern,
+    { time: 1000 },
+  );
+
+  calculateSteps(false);
+  bench(
+    '-tactus',
+    _generateRandomPattern,
+    { time: 1000 },
+  );
+});
+
+describe('old random', () => {
+  calculateSteps(true);
+  bench(
+    '+tactus',
+    () => {
+        useOldRandom();
+        _generateRandomPattern();
+    },
+    { time: 1000 },
+  );
+
+  calculateSteps(false);
+  bench(
+    '-tactus',
+    () => {
+        useOldRandom();
+        _generateRandomPattern();
+    },
+    { time: 1000 },
+  );
+});
+calculateSteps(true);