diff --git a/bench/async-function-vs-function.js b/bench/async-function-vs-function.js
new file mode 100644
index 00000000..69d3875c
--- /dev/null
+++ b/bench/async-function-vs-function.js
@@ -0,0 +1,32 @@
+// --max-heap-size=4000
+const { createBenchmarkSuite } = require('../common')
+const assert = require('assert')
+
+const suite = createBenchmarkSuite('async function vs function');
+
+function noop() {
+  return true;
+}
+
+async function noop2() {
+  return true;
+}
+
+suite
+  .add('function', function () {
+    const a = noop();
+    assert.ok(a);
+  })
+  .add('[async] - function', async function () {
+    const a = noop();
+    assert.ok(a);
+  })
+  .add('[async] - await function', async function () {
+    const a = await noop();
+    assert.ok(a);
+  })
+  .add('[async] - await async function', async function () {
+    const a = await noop2();
+    assert.ok(a);
+  })
+  .run({ async: false })
diff --git a/scripts/generate-run-all.mjs b/scripts/generate-run-all.mjs
index 12afcff4..392e7b47 100644
--- a/scripts/generate-run-all.mjs
+++ b/scripts/generate-run-all.mjs
@@ -12,6 +12,10 @@ const formatJobName = name => name
 .slice(0, 100)
 
 const benchJobs = allBenches.map((benchFile, index, array) => {
+  let nodeOpts = '';
+  if (benchFile === 'async-function-vs-function.js') {
+    nodeOpts += '--max-heap-size=4000 ';
+  }
   const jobName = formatJobName(benchFile);
 
   return `
@@ -20,6 +24,7 @@ const benchJobs = allBenches.map((benchFile, index, array) => {
     name: Running "${benchFile}"
     uses: ./.github/workflows/bench.yml
     with:
+      node-opts: ${nodeOpts}
       bench-file: ${benchFile}
       node-versions: \${{ inputs.node-versions }}
 `;