1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/devtools/gc-ubench/benchmarks/globalArrayBuffer.js b/js/src/devtools/gc-ubench/benchmarks/globalArrayBuffer.js
new file mode 100644
index 0000000000..06bf73eea8
--- /dev/null
+++ b/js/src/devtools/gc-ubench/benchmarks/globalArrayBuffer.js
@@ -0,0 +1,36 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+tests.set(
+  "globalArrayBuffer",
+  (function() {
+    var garbage = [];
+    var garbageIndex = 0;
+    return {
+      description: "var foo = ArrayBuffer(N); # (large malloc data)",
+
+      load: N => {
+        garbage = new Array(N);
+      },
+      unload: () => {
+        garbage = [];
+        garbageIndex = 0;
+      },
+
+      defaultGarbagePerFrame: "4M",
+      defaultGarbagePiles: "8K",
+
+      makeGarbage: N => {
+        var ab = new ArrayBuffer(N);
+        var view = new Uint8Array(ab);
+        view[0] = 1;
+        view[N - 1] = 2;
+        garbage[garbageIndex++] = ab;
+        if (garbageIndex == garbage.length) {
+          garbageIndex = 0;
+        }
+      },
+    };
+  })()
+);