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benchmark/buffers/buffer-slice.js

@@ -0,0 +1,24 @@
+'use strict';
+const common = require('../common.js');
+const SlowBuffer = require('buffer').SlowBuffer;
+
+const bench = common.createBenchmark(main, {
+  type: ['fast', 'slow', 'subarray'],
+  n: [1e6],
+});
+
+const buf = Buffer.allocUnsafe(1024);
+const slowBuf = new SlowBuffer(1024);
+
+function main({ n, type }) {
+  const b = type === 'slow' ? slowBuf : buf;
+  const fn = type === 'subarray' ?
+    () => b.subarray(10, 256) :
+    () => b.slice(10, 256);
+
+  bench.start();
+  for (let i = 0; i < n; i++) {
+    fn();
+  }
+  bench.end(n);
+}