Function storePerformanceLogOfCurrentRun

modules/ssr-benchmarks/run-benchmark.ts:100–118

(measures: Map<string, number[]>)

 * Each entry is sorted, which will make the map keys sorted by startTime
 */
export function storePerformanceLogOfCurrentRun(measures: Map<string, number[]>) {
  const perfEntries = performance.getEntriesByType('measure');
  perfEntries.sort((a, b) => a.startTime - b.startTime);

  for (const {name, duration} of perfEntries) {
    if (!name.startsWith(PERFORMANCE_MARK_PREFIX)) {
      continue;
    }

    const measure = measures.get(name);
    if (!measure) {
      measures.set(name, [duration]);
    } else {
      measure.push(duration);
    }

    performance.clearMeasures(name);
  }
}