structured-clone-long-string-serialize.html

<!DOCTYPE html>
<body>
<script src="../resources/runner.js"></script>
<script src="resources/structured-clone-perf-test.js"></script>
<script>
// This simulates a long string being sent, such as JSON data as text, or a
// large data URI.
const log2Length = 23;
let str = 'a';
for (let i = 0; i < log2Length; i++) str += str;

StructuredClonePerfTestRunner.measureTimeAsync({
  description: "Measures performance of serializing a long string.",
  data: str,
  measure: "serialize",
});
</script>
</body>

chromium/third_party/blink/perf_tests/bindings/structured-clone-long-string-serialize.html