Method _run

benchmark/common.js:200–251

()

  }

  _run() {
    // If forked, report to the parent.
    if (process.send) {
      process.send({
        type: 'config',
        name: this.name,
        queueLength: this.queue.length,
      });
    }

    if (this.originalOptions.setup) {
      // Only do this from the root process. _run() is only ever called from the root,
      // in child processes main is run directly.
      this.originalOptions.setup(this.queue);
    }

    const recursive = (queueIndex) => {
      const config = this.queue[queueIndex];

      // Set NODE_RUN_BENCHMARK_FN to indicate that the child shouldn't
      // construct a configuration queue, but just execute the benchmark
      // function.
      const childEnv = { ...process.env };
      childEnv.NODE_RUN_BENCHMARK_FN = '';

      // Create configuration arguments
      const childArgs = [];
      for (const [key, value] of Object.entries(config)) {
        childArgs.push(`${key}=${value}`);
      }
      for (const [key, value] of Object.entries(this.extra_options)) {
        childArgs.push(`${key}=${value}`);
      }

      const child = child_process.fork(require.main.filename, childArgs, {
        env: childEnv,
        execArgv: this.flags.concat(process.execArgv),
      });
      child.on('message', sendResult);
      child.on('close', (code) => {
        if (code) {
          process.exit(code);
        }

        if (queueIndex + 1 < this.queue.length) {
          recursive(queueIndex + 1);
        }
      });
    };

    recursive(0);
  }

  start() {
    if (this._started) {