@Test
    public void testPerf() throws IOException {
        final HttpGet request = new HttpGet("https://11ro68yamg.execute-api.us-east-1.amazonaws.com/prod/lambda");
        final int numRequests = 10000;
        final int[] histogram = new int[100];
        final List<Integer> latencies = new ArrayList<>();

        final CloseableHttpClient client = HttpClients.createDefault();

        for (int i = 0; i < numRequests; i++) {

            final Stopwatch sw = Stopwatch.createStarted();
            final CloseableHttpResponse resp = client.execute(request);
            resp.close();
            sw.stop();

            long millis = sw.elapsed(TimeUnit.MILLISECONDS);

            if (millis > 800) {
                LOG.warn(String.format("Request took %dms" + ", request ID: %s, CF request ID: %s", millis,
                                       resp.getFirstHeader("X-Amzn-Requestid"), resp.getFirstHeader("X-Amz-Cf-Id")));
            }

            histogram[((int) (millis / 100))]++;
            latencies.add((int) millis);
        }

        Collections.sort(latencies);

        final int p50 = latencies.get((50 * (numRequests) / 100) - 1);
        final int p90 = latencies.get((90 * (numRequests) / 100) - 1);
        final int p99 = latencies.get((99 * (numRequests) / 100) - 1);
        final int p100 = latencies.get((100 * (numRequests) / 100) - 1);

        LOG.info(String.format("Num requests: %d P50: %dms P90: %dms P99: %dms P100: %dms", numRequests, p50, p90, p99, p100));
        LOG.info(String.format("Distribution: "));
        for (int i = 0; i < histogram.length; i++) {
            LOG.info(i*100 + "ms - " + (i+1)*100 + "ms: " + histogram[i]);
        }