Function aggregateKernelTime

e2e/benchmarks/benchmark_util.js:519–534

* Aggregate kernels by name and sort the array in non-ascending order of time. * Return an array of objects with `name` and `timeMs` fields. * * @param {Array } kernels An array of kernel information objects. Each * object must include `name` (string) and `kernelTimeMs` (number) field

(kernels)

 *     object must include `name` (string) and `kernelTimeMs` (number) fields.
 */
function aggregateKernelTime(kernels) {
  const aggregatedKernelTime = {};
  kernels.forEach(kernel => {
    const oldAggregatedKernelTime = aggregatedKernelTime[kernel.name];
    if (oldAggregatedKernelTime == null) {
      aggregatedKernelTime[kernel.name] = kernel.kernelTimeMs;
    } else {
      aggregatedKernelTime[kernel.name] =
          oldAggregatedKernelTime + kernel.kernelTimeMs;
    }
  });

  return Object.entries(aggregatedKernelTime)
      .map(([name, timeMs]) => ({name, timeMs}))
      .sort((a, b) => b.timeMs - a.timeMs);
}

/**
 * This map descripes tunable flags and theior corresponding types.