Function runTest

benchmark/fs/read-stream-throughput.js:69–94

(filesize, highWaterMark, encoding, n)

}

function runTest(filesize, highWaterMark, encoding, n) {
  assert.strictEqual(fs.statSync(filename).size, filesize * n);
  const rs = fs.createReadStream(filename, {
    highWaterMark,
    encoding,
  });

  rs.on('open', () => {
    bench.start();
  });

  let bytes = 0;
  rs.on('data', (chunk) => {
    bytes += chunk.length;
  });

  rs.on('end', () => {
    try {
      fs.unlinkSync(filename);
    } catch {
      // Continue regardless of error.
    }
    // MB/sec
    bench.end(bytes / (1024 * 1024));
  });
}