1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/devtools/gc-ubench/benchmarks/globalArrayLargeObject.js b/js/src/devtools/gc-ubench/benchmarks/globalArrayLargeObject.js
new file mode 100644
index 0000000000..ed1c38b271
--- /dev/null
+++ b/js/src/devtools/gc-ubench/benchmarks/globalArrayLargeObject.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(
+  "globalArrayLargeObject",
+  (function() {
+    var garbage = [];
+    var garbageIndex = 0;
+    return {
+      description: "var foo = { LARGE }; # (large slots)",
+
+      load: N => {
+        garbage = new Array(N);
+      },
+      unload: () => {
+        garbage = [];
+        garbageIndex = 0;
+      },
+
+      defaultGarbagePiles: "8K",
+      defaultGarbagePerFrame: "64K",
+
+      makeGarbage: N => {
+        var obj = {};
+        for (var i = 0; i < N; i++) {
+          obj["key" + i] = i;
+        }
+        garbage[garbageIndex++] = obj;
+        if (garbageIndex == garbage.length) {
+          garbageIndex = 0;
+        }
+      },
+    };
+  })()
+);