}), r.URL)
		return
	}

	if autotune && !canAutotune {
		autotune = false
	}

	if customBucket == "" {
		customBucket = globalObjectPerfBucket

		bucketExists, err := makeObjectPerfBucket(ctx, objectAPI, customBucket)
		if err != nil {
			writeErrorResponseJSON(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}

		if !noClear && !bucketExists {