chromium/third_party/blink/perf_tests/owp_storage/blob-perf-shm.html

<!doctype html>
<title>Blob Perf (Shared Memory)</title>
<script src="../resources/runner.js"></script>
<script src="resources/shared.js"></script>
<script>
// Note: This test requires setting the command line flag
// '--blob-transport-shared-memory-max-size=30720' to exercise the shared memory
// data pipe transfer work.
let runnerParams = { size: 300 * 1024, numBlobs: 10 };
let test = {
  description:
    'Benchmark for creating blobs using Shared Memory transport then reading both synchronously and in parallel.',
  unit: 'ms',
  iterationCount: 20,
  tracingCategories: 'Blob',
  traceEventsToMeasure: [
    'BlobReader::ReadBytesItem', 'Registry::RegisterBlob'
  ],
  path: 'resources/blob-perf-runner.html',
  params: runnerParams
}
PerfTestRunner.measurePageLoadTimeAfterDoneMessage(test);
</script>