1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/devtools/gc-ubench/benchmarks/bigTextNodes.js b/js/src/devtools/gc-ubench/benchmarks/bigTextNodes.js
new file mode 100644
index 0000000000..0a66be03d3
--- /dev/null
+++ b/js/src/devtools/gc-ubench/benchmarks/bigTextNodes.js
@@ -0,0 +1,42 @@
+/* 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(
+  "bigTextNodes",
+  (function() {
+    var garbage = [];
+    var garbageIndex = 0;
+    return {
+      description: "var foo = [ textNode, textNode, ... ]",
+
+      enabled: "document" in globalThis,
+
+      load: N => {
+        garbage = new Array(N);
+      },
+      unload: () => {
+        garbage = [];
+        garbageIndex = 0;
+      },
+
+      defaultGarbagePerFrame: "8",
+      defaultGarbagePiles: "8",
+
+      makeGarbage: N => {
+        var a = [];
+        var s = "x";
+        for (var i = 0; i < 16; i++) {
+          s = s + s;
+        }
+        for (var i = 0; i < N; i++) {
+          a.push(document.createTextNode(s));
+        }
+        garbage[garbageIndex++] = a;
+        if (garbageIndex == garbage.length) {
+          garbageIndex = 0;
+        }
+      },
+    };
+  })()
+);