    @Test
    public void signBenchmark() throws IOException, HttpException {

        Header[] headers = new Header[] {
                new BasicHeader("Content-Type", "application/json; type=directory"),
                new BasicHeader("x-request-id", "bb3ca512-c637-43c8-926b-2990caf64aee"),
                new BasicHeader("accept-version", "~1.0"),
                new BasicHeader("Accept", "application/json, */*"),
                new BasicHeader("Content-Length", "0"),
                new BasicHeader("Host", "us-east.manta.joyent.com:443"),
                new BasicHeader("Connection", "Keep-Alive"),
                new BasicHeader("User-Agent", "Java-Manta-SDK/3.0.0-SNAPSHOT (Java/1.8.0_76/Oracle Corporation)"),
                new BasicHeader("Accept-Encoding", "gzip,deflate"),
        };

        HttpContext context = new BasicHttpContext();

        for (int i = 0; i < 5; i++) {
            HttpRequest request = new HttpPut("https://us-east.manta.joyent.com:443");
            request.setHeaders(headers);
            interceptor.process(request, context);
            String signTime = request.getFirstHeader("x-http-signing-time-ns").getValue();
            System.out.printf("Time to sign: %s\n", signTime);
        }
    }