public static void main(final String[] args) {
        final Map<String,Object> options = ElementHelper.asMap(args);
        final boolean noExit = Boolean.parseBoolean(options.getOrDefault("noExit", "false").toString());
        final int parallelism = Integer.parseInt(options.getOrDefault("parallelism", "16").toString());
        final BasicThreadFactory threadFactory = new BasicThreadFactory.Builder().namingPattern("profiler-%d").build();
        final ExecutorService executor = Executors.newFixedThreadPool(parallelism, threadFactory);
        final TestType testType = TestType.values()[(Integer.parseInt(options.getOrDefault("testType", "1").toString()) % TestType.values().length)];

        final String host = options.getOrDefault("host", "localhost").toString();
        final int minExpectedRps = Integer.parseInt(options.getOrDefault("minExpectedRps", "1000").toString());
        final int timeout = Integer.parseInt(options.getOrDefault("timeout", "1200000").toString());
        final int warmups = Integer.parseInt(options.getOrDefault("warmups", "5").toString());
        final int executions = Integer.parseInt(options.getOrDefault("executions", "10").toString());
        final int nioPoolSize = Integer.parseInt(options.getOrDefault("nioPoolSize", "1").toString());
        final int requests = Integer.parseInt(options.getOrDefault("requests", "10000").toString());
        final int maxConnectionPoolSize = Integer.parseInt(options.getOrDefault("maxConnectionPoolSize", "256").toString());
        final int maxWaitForConnection = Integer.parseInt(options.getOrDefault("maxWaitForConnection", "3000").toString());
        final int workerPoolSize = Integer.parseInt(options.getOrDefault("workerPoolSize", Runtime.getRuntime().availableProcessors() * 2).toString());
        final int tooSlowThreshold = Integer.parseInt(options.getOrDefault("tooSlowThreshold", "125").toString());
        final String serializer = options.getOrDefault("serializer", Serializers.GRAPHBINARY_V4.name()).toString();
        final int pauseBetweenRuns = Integer.parseInt(options.getOrDefault("pauseBetweenRuns", "1000").toString());
        final boolean suppressStackTraces = Boolean.parseBoolean(options.getOrDefault("suppressStackTraces", "false").toString());

        final boolean exercise = Boolean.parseBoolean(options.getOrDefault("exercise", "false").toString());
        final String script = options.getOrDefault("script", "g.inject(1)").toString();

        final Cluster cluster = Cluster.build(host)
                .maxConnectionPoolSize(maxConnectionPoolSize)
                .nioPoolSize(nioPoolSize)
                .maxWaitForConnection(maxWaitForConnection)
                .serializer(Serializers.valueOf(serializer))
                .workerPoolSize(workerPoolSize).create();

        try {
            if (TestType.LATENCY == testType) {
                System.out.println("-----------------------LATENCY TEST SELECTED----------------------");
            } else {
                System.out.println("---------------------THROUGHPUT TEST SELECTED---------------------");
            }

            if (exercise) {
                System.out.println("--------------------------INITIALIZATION--------------------------");
                final Client client = cluster.connect();
                client.submit("graph.clear()").all().join();
                System.out.println("Cleared existing 'graph'");

                client.submit("TinkerFactory.generateModern(graph)").all().join();
                client.close();

                System.out.println("Modern graph loaded");
            }

            if (TestType.THROUGHPUT == testType) {
                final Object fileName = options.get("store");
                final File f = null == fileName ? null : new File(fileName.toString());
                if (f != null && f.length() == 0) {
                    try (final PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(f, true)))) {
                        writer.println("parallelism\tnioPoolSize\tmaxConnectionPoolSize\tworkerPoolSize\trequestPerSecond");
                    }
                }

                // not much point to continuing with a line of tests if we can't get at least minExpectedRps.
                final AtomicBoolean meetsRpsExpectation = new AtomicBoolean(true);
                System.out.println("---------------------------WARMUP CYCLE---------------------------");
                for (int ix = 0; ix < warmups && meetsRpsExpectation.get(); ix++) {
                    final long averageRequestsPerSecond = new ProfilingApplication("warmup-" + (ix + 1), cluster, 1000, executor, script, tooSlowThreshold, exercise, suppressStackTraces).executeThroughput();
                    meetsRpsExpectation.set(averageRequestsPerSecond >= minExpectedRps);
                    TimeUnit.MILLISECONDS.sleep(pauseBetweenRuns); // pause between executions
                }

                final AtomicBoolean exceededTimeout = new AtomicBoolean(false);
                long totalRequestsPerSecond = 0;

                // no need to execute this if we didn't pass the basic expectation in the warmups
                if (exercise || meetsRpsExpectation.get()) {
                    final long start = System.nanoTime();
                    System.out.println("----------------------------TEST CYCLE----------------------------");
                    for (int ix = 0; ix < executions && !exceededTimeout.get(); ix++) {
                        totalRequestsPerSecond += new ProfilingApplication("test-" + (ix + 1), cluster, requests, executor, script, tooSlowThreshold, exercise, suppressStackTraces).executeThroughput();
                        exceededTimeout.set((System.nanoTime() - start) > TimeUnit.NANOSECONDS.convert(timeout, TimeUnit.MILLISECONDS));
                        TimeUnit.MILLISECONDS.sleep(pauseBetweenRuns); // pause between executions
                    }
                }

                final int averageRequestPerSecond = !meetsRpsExpectation.get() || exceededTimeout.get() ? 0 : Math.round(totalRequestsPerSecond / executions);
                System.out.println(String.format("avg req/sec: %s", averageRequestPerSecond));
                if (f != null) {
                    try (final PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(f, true)))) {
                        writer.println(String.join("\t", String.valueOf(parallelism), String.valueOf(nioPoolSize), String.valueOf(maxConnectionPoolSize), String.valueOf(workerPoolSize), String.valueOf(averageRequestPerSecond)));
                    }
                }
            } else if (TestType.LATENCY == testType) {
                final AtomicBoolean meetsTimeoutExpectation = new AtomicBoolean(true);
                System.out.println("---------------------------WARMUP CYCLE---------------------------");
                for (int ix = 0; ix < warmups && meetsTimeoutExpectation.get(); ix++) {
                    final double latency = new ProfilingApplication("warmup-" + (ix + 1), cluster, 1000, executor, script, tooSlowThreshold, exercise, suppressStackTraces).executeLatency();
                    meetsTimeoutExpectation.set(latency < timeout);
                    TimeUnit.MILLISECONDS.sleep(pauseBetweenRuns); // pause between executions
                }

                final AtomicBoolean exceededTimeout = new AtomicBoolean(false);
                double totalTime = 0;

                // no need to execute this if we didn't pass the basic expectation in the warmups
                if (exercise || meetsTimeoutExpectation.get()) {
                    final long start = System.nanoTime();
                    System.out.println("----------------------------TEST CYCLE----------------------------");
                    for (int ix = 0; ix < executions && !exceededTimeout.get(); ix++) {
                        totalTime += new ProfilingApplication("test-" + (ix + 1), cluster, requests, executor, script, tooSlowThreshold, exercise, suppressStackTraces).executeLatency();
                        exceededTimeout.set((System.nanoTime() - start) > TimeUnit.NANOSECONDS.convert(timeout, TimeUnit.MILLISECONDS));
                        TimeUnit.MILLISECONDS.sleep(pauseBetweenRuns); // pause between executions
                    }
                }

                final double averageLatency = !meetsTimeoutExpectation.get() || exceededTimeout.get() ? 0 : (totalTime / executions);
                System.out.println(String.format("avg latency (sec/req): %s", averageLatency));
            } else {
                System.out.println("Encountered unknown testType. Please enter a valid value and try again.");
            }

            if (!noExit) System.exit(0);
        } catch (Exception ex) {
            ex.printStackTrace();
            if (!noExit) System.exit(1);
        } finally {
            executor.shutdown();
            cluster.close();
        }
    }
An internal application used to test out configuration parameters for Gremlin Driver.

@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/util/ProfilingApplication.java