}

  /**
   * Guides the allowed concurrency among update operations. Used as a hint for internal sizing. The
   * table is internally partitioned to try to permit the indicated number of concurrent updates
   * without contention. Because assignment of entries to these partitions is not necessarily
   * uniform, the actual concurrency observed may vary. Ideally, you should choose a value to

    return new HashSet<>(Maps.capacity(expectedSize));
  }

  /**
   * Creates a thread-safe set backed by a hash map. The set is backed by a {@link
   * ConcurrentHashMap} instance, and thus carries the same concurrency guarantees.
   *
   * <p>Unlike {@code HashSet}, this class does NOT allow {@code null} to be used as an element. The
   * set is serializable.
   *
   * @return a new, empty thread-safe {@code Set}

  //    definitely observe all earlier writes, but we still have no guarantee that done() would see
  //    the initial write (just stronger guarantees if it does).
  //
  // See: http://cs.oswego.edu/pipermail/concurrency-interest/2015-January/013800.html
  // For a (long) discussion about this specific issue and the general futility of life.
  //
  // For the time being we are OK with the problem discussed above since it requires a caller to

   */
  final transient int segmentShift;

  /** The segments, each of which is a specialized hash table. */
  final transient Segment<K, V, E, S>[] segments;

  /** The concurrency level. */
  final int concurrencyLevel;

  /** Strategy for comparing keys. */
  final Equivalence<Object> keyEquivalence;

  /** Strategy for handling entries and segments in a type-safe and efficient manner. */

	if err != nil {
		duration = time.Second * 10
	}

	done := keepHTTPResponseAlive(w)

	result, err := selfSpeedTest(r.Context(), speedTestOpts{
		objectSize:      size,
		concurrency:     concurrent,
		duration:        duration,
		storageClass:    storageClass,
		bucketName:      bucketName,
		enableSha256:    enableSha256,
		enableMultipart: enableMultipart,

	globalInternodeTransport = NewInternodeHTTPTransport(0)()

	initHelp()

	resetTestGlobals()

	globalIsCICD = true

	os.Exit(m.Run())
}

// concurrency level for certain parallel tests.
const testConcurrencyLevel = 10

const iso8601TimeFormat = "2006-01-02T15:04:05.000Z"

// Excerpts from @lsegal - https://github.com/aws/aws-sdk-js/issues/659#issuecomment-120477258