concurrent = 32
	}

	duration, err := time.ParseDuration(durationStr)
	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,
	})