List of usage examples for java.lang System nanoTime
@HotSpotIntrinsicCandidate public static native long nanoTime();
From source file:math.test.TestDimpleRandom.java
/** * Measures speed of Apache vs Colt generators */// w w w.j ava2s.c om public static void main(String[] args) { RandomGenerator apacheGenerator = new MersenneTwister(42); cern.jet.random.engine.RandomEngine cernGenerator = new cern.jet.random.engine.MersenneTwister(); final int N = 100000; long start, end; start = System.nanoTime(); for (int i = N; --i >= 0;) { apacheGenerator.nextDouble(); } end = System.nanoTime(); long apacheTime = end - start; start = System.nanoTime(); for (int i = N; --i >= 0;) { cernGenerator.nextDouble(); } end = System.nanoTime(); long cernTime = end - start; System.out.format("MersenneTwister.nextDouble() x %d apache/cern %f\n", N, (double) apacheTime / cernTime); start = System.nanoTime(); for (int i = N; --i >= 0;) { BetaDistribution apacheBeta = new BetaDistribution(apacheGenerator, 1.0, 1.0); apacheBeta.sample(); } end = System.nanoTime(); apacheTime = end - start; cern.jet.random.Beta cernBeta = new cern.jet.random.Beta(1, 1, cernGenerator); start = System.nanoTime(); for (int i = N; --i >= 0;) { cernBeta.nextDouble(); } end = System.nanoTime(); apacheTime = end - start; System.out.format("Beta x %d apache/cern %f\n", N, (double) apacheTime / cernTime); start = System.nanoTime(); for (int i = N; --i >= 0;) { GammaDistribution apacheGamma = new GammaDistribution(apacheGenerator, 1.0, 1.0); apacheGamma.sample(); } end = System.nanoTime(); apacheTime = end - start; cern.jet.random.Gamma cernGamma = new cern.jet.random.Gamma(1, 1, cernGenerator); start = System.nanoTime(); for (int i = N; --i >= 0;) { cernGamma.nextDouble(); } end = System.nanoTime(); apacheTime = end - start; System.out.format("Gamma x %d apache/cern %f\n", N, (double) apacheTime / cernTime); start = System.nanoTime(); for (int i = N; --i >= 0;) { BinomialDistribution apacheBinomial = new BinomialDistribution(apacheGenerator, 1, .5); apacheBinomial.sample(); } end = System.nanoTime(); apacheTime = end - start; cern.jet.random.Binomial cernBinomial = new cern.jet.random.Binomial(1, .5, cernGenerator); start = System.nanoTime(); for (int i = N; --i >= 0;) { cernBinomial.nextInt(); } end = System.nanoTime(); apacheTime = end - start; System.out.format("Binomial x %d apache/cern %f\n", N, (double) apacheTime / cernTime); }
From source file:io.anserini.util.SearchTimeUtil.java
public static void main(String[] args) throws IOException, ParseException, ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException, InstantiationException { if (args.length != 1) { System.err.println("Usage: SearchTimeUtil <indexDir>"); System.err.println("indexDir: index directory"); System.exit(1);// w ww. j a v a 2s . co m } String[] topics = { "topics.web.1-50.txt", "topics.web.51-100.txt", "topics.web.101-150.txt", "topics.web.151-200.txt", "topics.web.201-250.txt", "topics.web.251-300.txt" }; SearchWebCollection searcher = new SearchWebCollection(args[0]); for (String topicFile : topics) { Path topicsFile = Paths.get("src/resources/topics-and-qrels/", topicFile); TopicReader tr = (TopicReader) Class.forName("io.anserini.search.query." + "Webxml" + "TopicReader") .getConstructor(Path.class).newInstance(topicsFile); SortedMap<Integer, String> queries = tr.read(); for (int i = 1; i <= 3; i++) { final long start = System.nanoTime(); String submissionFile = File.createTempFile(topicFile + "_" + i, ".tmp").getAbsolutePath(); RerankerCascade cascade = new RerankerCascade(); cascade.add(new IdentityReranker()); searcher.search(queries, submissionFile, new BM25Similarity(0.9f, 0.4f), 1000, cascade); final long durationMillis = TimeUnit.MILLISECONDS.convert(System.nanoTime() - start, TimeUnit.NANOSECONDS); System.out.println(topicFile + "_" + i + " search completed in " + DurationFormatUtils.formatDuration(durationMillis, "mm:ss:SSS")); } } searcher.close(); }
From source file:Pong.java
public static void main(String... args) throws Exception { System.setProperty("os.max.pid.bits", "16"); Options options = new Options(); options.addOption("i", true, "Input chronicle path"); options.addOption("n", true, "Number of entries to write"); options.addOption("w", true, "Number of writer threads"); options.addOption("r", true, "Number of reader threads"); options.addOption("x", false, "Delete the output chronicle at startup"); CommandLine cmd = new DefaultParser().parse(options, args); final Path output = Paths.get(cmd.getOptionValue("o", "/tmp/__test/chr")); final long maxCount = Long.parseLong(cmd.getOptionValue("n", "10000000")); final int writerThreadCount = Integer.parseInt(cmd.getOptionValue("w", "4")); final int readerThreadCount = Integer.parseInt(cmd.getOptionValue("r", "4")); final boolean deleteOnStartup = cmd.hasOption("x"); if (deleteOnStartup) { FileUtil.removeRecursive(output); }/*ww w . j a va2 s. c o m*/ final Chronicle chr = ChronicleQueueBuilder.vanilla(output.toFile()).build(); final ExecutorService executor = Executors.newFixedThreadPool(4); final List<Future<?>> futures = new ArrayList<>(); final long totalCount = writerThreadCount * maxCount; final long t0 = System.nanoTime(); for (int i = 0; i != readerThreadCount; ++i) { final int tid = i; futures.add(executor.submit((Runnable) () -> { try { IntLongMap counts = HashIntLongMaps.newMutableMap(); ExcerptTailer tailer = chr.createTailer(); final StringBuilder sb1 = new StringBuilder(); final StringBuilder sb2 = new StringBuilder(); long count = 0; while (count != totalCount) { if (!tailer.nextIndex()) continue; final int id = tailer.readInt(); final long val = tailer.readStopBit(); final long longValue = tailer.readLong(); sb1.setLength(0); sb2.setLength(0); tailer.read8bitText(sb1); tailer.read8bitText(sb2); if (counts.addValue(id, 1) - 1 != val || longValue != 0x0badcafedeadbeefL || !StringInterner.isEqual("FooBar", sb1) || !StringInterner.isEqual("AnotherFooBar", sb2)) { System.out.println("Unexpected value " + id + ", " + val + ", " + Long.toHexString(longValue) + ", " + sb1.toString() + ", " + sb2.toString()); return; } ++count; if (count % 1_000_000 == 0) { long t1 = System.nanoTime(); System.out.println(tid + " " + (t1 - t0) / 1e6 + " ms"); } } } catch (IOException e) { e.printStackTrace(); } })); } for (Future f : futures) { f.get(); } executor.shutdownNow(); final long t1 = System.nanoTime(); System.out.println("Done. Rough time=" + (t1 - t0) / 1e6 + " ms"); }
From source file:ca.uqac.info.trace.TraceGenerator.java
public static void main(String[] args) { // Parse command line arguments Options options = setupOptions();//w w w . j a va 2s. c o m CommandLine c_line = setupCommandLine(args, options); int verbosity = 0, max_events = 1000000; if (c_line.hasOption("h")) { showUsage(options); System.exit(ERR_OK); } String generator_name = "simplerandom"; if (c_line.hasOption("g")) { generator_name = c_line.getOptionValue("generator"); } long time_per_msg = 1000; if (c_line.hasOption("i")) { time_per_msg = Integer.parseInt(c_line.getOptionValue("i")); } if (c_line.hasOption("verbosity")) { verbosity = Integer.parseInt(c_line.getOptionValue("verbosity")); } if (c_line.hasOption("e")) { max_events = Integer.parseInt(c_line.getOptionValue("e")); } String feeder_params = ""; if (c_line.hasOption("parameters")) { feeder_params = c_line.getOptionValue("parameters"); } MessageFeeder mf = instantiateFeeder(generator_name, feeder_params); if (mf == null) { System.err.println("Unrecognized feeder name"); System.exit(ERR_ARGUMENTS); } // Trap Ctrl-C to send EOT before shutting down Runtime.getRuntime().addShutdownHook(new Thread() { public void run() { char EOT = 4; System.out.print(EOT); } }); for (int num_events = 0; mf.hasNext() && num_events < max_events; num_events++) { long time_begin = System.nanoTime(); String message = mf.next(); StringBuilder out = new StringBuilder(); out.append(message); System.out.print(out.toString()); long time_end = System.nanoTime(); long duration = time_per_msg - (long) ((time_end - time_begin) / 1000000f); if (duration > 0) { try { Thread.sleep(duration); } catch (InterruptedException e) { } } if (verbosity > 0) { System.err.print("\r" + num_events + " " + duration + "/" + time_per_msg); } } }
From source file:com.quest.orahive.HiveJdbcClient.java
public static void main(String[] args) { long mainStartTime = System.nanoTime(); Configuration conf = new Configuration(); Options options = new Options(); parseGeneralOptions(options, conf, args); //<- log4j will now be configured. showWelcomeMessage();//from ww w . j av a 2 s . com if (args.length == 0 || userWantsToSeeHelp(args)) { printCommandLineHelp(options); System.exit(0); } checkConfiguration(conf); OraHiveOptions opts = getOraHiveOptions(conf); OraHiveCounters counters = new OraHiveCounters(); try { Connection hiveConnection = createHiveJdbcConnection(opts.hiveJdbcUrl, opts.hiveUserName, opts.hivePassword); try { Connection oracleConnection = createOracleJdbcConnection(opts.oracleJdbcUrl, opts.oracleUserName, opts.oraclePassword); try { initializeOracleSession(oracleConnection, opts); Statement statement = hiveConnection.createStatement(); LOG.info("Running: " + opts.hql); // Execute Hive Query... long start = System.nanoTime(); ResultSet hiveResultSet = statement.executeQuery(opts.hql); counters.hiveQueryTimeNanoSec = System.nanoTime() - start; // Get column definitions from the Hive resultset... List<OracleTableColumn> oracleColumns = getOracleTableColumnsForHiveResults(hiveResultSet); if (opts.exportMode.equals(Constants.ExportMode.CREATE)) { // Create an Oracle table based on the columns in the Hive resultset... createOracleTableWithRetry(opts, oracleColumns, oracleConnection); //<- Lets the user retry this if it fails. } // Generate the Oracle insert statement... String insertSql = generateOracleInsertStatement(opts, oracleColumns); // Insert the Hive data into Oracle... insertHiveResultsIntoOracleTable(opts, insertSql, oracleColumns, oracleConnection, hiveResultSet, counters); //hiveResultSet.close(); //<- Not required/supported statement.close(); } finally { oracleConnection.close(); } } finally { hiveConnection.close(); } } catch (SQLException ex) { LOG.error(String.format("An error occurred in %s.", Constants.ORAHIVE_PRODUCT_NAME), ex); } LOG.info(String.format("\n\n********************************************************************\n" + "\tTotal time : %s sec.\n" + "\tNumber of records processed : %s\n" + "\tTime spent executing HQL statement: %s sec.\n" + "\tTime spent fetching Hive data : %s sec.\n" + "\tTime spent inserting into Oracle : %s sec.", (System.nanoTime() - mainStartTime) / Math.pow(10, 9), counters.rowsProcessed, counters.hiveQueryTimeNanoSec / Math.pow(10, 9), counters.hiveFetchTimeNanoSec / Math.pow(10, 9), counters.oracleInsertTimeNanoSec / Math.pow(10, 9))); }
From source file:com.adeptj.runtime.core.Launcher.java
/** * Entry point for initializing the AdeptJ Runtime. * <p>// w ww .j a v a2 s . co m * It does the following tasks in order. * <p> * 1. Initializes the Logback logging framework. * 2. Does the deployment to embedded UNDERTOW. * 3. Starts the OSGi Framework. * 4. Starts the Undertow server. * 5. Registers the runtime ShutdownHook. * * @param args command line arguments for the Launcher. */ public static void main(String[] args) { Thread.currentThread().setName("AdeptJ Launcher"); long startTime = System.nanoTime(); LogbackInitializer.init(); Logger logger = LoggerFactory.getLogger(Launcher.class); try { pauseForDebug(); logger.info("JRE: [{}], Version: [{}]", JAVA_RUNTIME_NAME, JAVA_RUNTIME_VERSION); Map<String, String> runtimeArgs = parseArgs(args); Lifecycle lifecycle = new Server(runtimeArgs); lifecycle.start(); Runtime.getRuntime().addShutdownHook(new ShutdownHook(lifecycle, Constants.SERVER_STOP_THREAD_NAME)); launchBrowser(runtimeArgs); logger.info("AdeptJ Runtime initialized in [{}] ms!!", Times.elapsedMillis(startTime)); } catch (Throwable th) { // NOSONAR logger.error("Exception while initializing AdeptJ Runtime!!", th); shutdownJvm(); } }
From source file:data_gen.Data_gen.java
public static void main(String[] args) throws FileNotFoundException, IOException { long startTime = System.nanoTime(); if (args.length < 2) { System.out.println("Usage:"); System.out.println(/*from w w w .j av a2s.com*/ "java -jar \"jarfile\" [Directory of text source folder] [Dierctory of configration file]" + "\n"); System.exit(0); } String Dir = args[0]; // get text source dir from user String config_dir = args[1]; File folder = new File(Dir); if (folder.isDirectory() == false) { System.out.println("Text souce folder is not a Directory." + "\n"); System.exit(0); } if (!config_dir.endsWith(".properties") && !config_dir.endsWith(".PROPERTIES")) { System.out.println("\n" + "There was error parsing dataset parameters from configuration file, make sure you have the 4 parameters specified and the right type of file" + "\n"); System.exit(0); } listOfFiles = folder.listFiles(new FilenameFilter() { @Override public boolean accept(File dir, String name) { return name.toLowerCase().endsWith(".txt"); } }); if (listOfFiles.length == 0) { System.out.println("Text source folder is empty ! Have at least one .txt file there" + "\n"); System.exit(0); } System.out.println("\n"); Parse_Document_values(config_dir);// parse config file to get class attribute values document_size = Docments_Total_size / documents_count; // to get each document size max = (long) ((double) document_size * 1.8); min = (long) ((double) document_size * 0.2); schema_fields = Parse_Document_fields(config_dir); try { LineIterator it = FileUtils.lineIterator(listOfFiles[0]); while (it.hasNext()) { tx.add(it.nextLine()); } } catch (NullPointerException | FileNotFoundException e) { System.out.println("The text source file could not be found." + "\n"); System.exit(0); } new File(output_dir).mkdir(); //////////////////////////////////////////////////////////////// build json or .dat //////////////////////////////////////////////////////////////////// if (Default_DataSet_name.endsWith(".json")) { Build_json_file(config_dir, startTime); } if (Default_DataSet_name.endsWith(".dat")) { Build_dat_file(config_dir, startTime); } generate_xml(); generate_field_map(); }
From source file:languageTools.Analyzer.java
/** * * @param args//from w w w . jav a 2s . c om * @throws Exception */ public static void main(String[] args) { // Get start time. long startTime = System.nanoTime(); // Parse command line options File file; try { file = parseOptions(args); } catch (ParseException e) { System.out.println(e.getMessage()); showHelp(); return; } // Get all files that should be analyzed List<File> files = new ArrayList<File>(); if (file.isDirectory()) { // Search directory for indicated file types files = searchDirectory(file); System.out.println("Found " + files.size() + " file(s).\n"); } else { files.add(file); } // Process files found for (File filefound : files) { System.out.println("Processing file: " + filefound.getPath() + ".\n"); Validator<?, ?, ?, ?> validator = null; switch (Extension.getFileExtension(filefound)) { case GOAL: validator = new AgentValidator(filefound.getPath()); // TODO we need to set a KR interface; use default (only one) // right now. Best we can do now // is to ask user to set it. try { ((AgentValidator) validator).setKRInterface(KRFactory.getDefaultInterface()); } catch (KRInitFailedException e) { // TODO: use logger. System.out.println(e.getMessage()); } break; case MOD2G: validator = new ModuleValidator(filefound.getPath()); // TODO we need to set a KR interface; use default (only one) // right now. Best we can do now // is to ask user to set it. try { ((ModuleValidator) validator).setKRInterface(KRFactory.getDefaultInterface()); } catch (KRInitFailedException e) { // TODO: use logger. System.out.println(e.getMessage()); } break; case MAS2G: validator = new MASValidator(filefound.getPath()); break; case TEST2G: validator = new TestValidator(filefound.getPath()); break; default: // TODO: use logger. System.out.println("Expected file with extension 'goal', 'mas2g', 'mod2g', or 'test2g'"); continue; } // Validate program file validator.validate(); // Print lexer tokens if (lexer) { validator.printLexerTokens(); } // Print constructed program if (program) { System.out.println("\n\n" + validator.getProgram().toString(" ", " ")); } // Print report with warnings, and parsing and validation messages System.out.println(validator.report()); } // Get elapsed time. long elapsedTime = (System.nanoTime() - startTime) / 1000000; System.out.println("Took " + elapsedTime + " milliseconds to analyze " + files.size() + " file(s)."); }
From source file:io.adeptj.runtime.core.Launcher.java
/** * Entry point for initializing the AdeptJ Runtime. * <p>//from w w w . jav a 2 s. co m * It does the following tasks in order. * <p> * 1. Initializes the Logback logging framework. * 2. Does the deployment to embedded UNDERTOW. * 3. Starts the OSGi Framework. * 4. Starts the Undertow server. * 5. Registers the runtime ShutdownHook. * * @param args command line arguments for the Launcher. */ public static void main(String[] args) { Thread.currentThread().setName("AdeptJ Launcher"); long startTime = System.nanoTime(); LogbackInitializer.init(); Logger logger = LoggerFactory.getLogger(Launcher.class); try { pauseForDebug(); logger.info("JRE: [{}], Version: [{}]", JAVA_RUNTIME_NAME, JAVA_RUNTIME_VERSION); Map<String, String> commands = parseArgs(args); Lifecycle lifecycle = new Server(); lifecycle.start(); Runtime.getRuntime().addShutdownHook(new ShutdownHook(lifecycle, SERVER_STOP_THREAD_NAME)); launchBrowser(commands); logger.info("AdeptJ Runtime initialized in [{}] ms!!", Times.elapsedMillis(startTime)); } catch (Throwable th) { // NOSONAR logger.error("Exception while initializing AdeptJ Runtime!!", th); shutdownJvm(th); } }
From source file:lambertmrev.LambertMRev.java
/** * @param args the command line arguments *///from w w w .jav a2s. c om public static void main(String[] args) { // Want to test the Lambert class so you can specify the number of revs for which to compute //System.out.print("this is the frames tutorial \n"); try { Frame inertialFrame = FramesFactory.getEME2000(); TimeScale utc = TimeScalesFactory.getTAI(); AbsoluteDate initialDate = new AbsoluteDate(2004, 01, 01, 23, 30, 00.000, utc); double mu = 3.986004415e+14; double a = 24396159; // semi major axis in meters double e = 0.72831215; // eccentricity double i = Math.toRadians(7); // inclination double omega = Math.toRadians(180); // perigee argument double raan = Math.toRadians(261); // right ascension of ascending node double lM = 0; // mean anomaly Orbit initialOrbit = new KeplerianOrbit(a, e, i, omega, raan, lM, PositionAngle.MEAN, inertialFrame, initialDate, mu); //KeplerianPropagator kepler = new KeplerianPropagator(initialOrbit); // set geocentric positions Vector3D r1 = new Vector3D(-6.88999e3, 3.92763e4, 2.67053e3); Vector3D r2 = new Vector3D(-3.41458e4, 2.05328e4, 3.44315e3); Vector3D r1_site = new Vector3D(4.72599e3, 1.26633e3, 4.07799e3); Vector3D r2_site = new Vector3D(4.70819e3, 1.33099e3, 4.07799e3); // get the topocentric positions Vector3D top1 = Transform.geo2radec(r1.scalarMultiply(1000), r1_site.scalarMultiply(1000)); Vector3D top2 = Transform.geo2radec(r2.scalarMultiply(1000), r2_site.scalarMultiply(1000)); // time of flight in seconds double tof = 3 * 3600; // propagate to 0 and tof Lambert test = new Lambert(); boolean cw = false; int multi_revs = 1; RealMatrix v1_mat; Random randomGenerator = new Random(); PrintWriter out_a = new PrintWriter("out_java_a.txt"); PrintWriter out_e = new PrintWriter("out_java_e.txt"); PrintWriter out_rho1 = new PrintWriter("out_java_rho1.txt"); PrintWriter out_rho2 = new PrintWriter("out_java_rho2.txt"); // start the loop double A, Ecc, rho1, rho2, tof_hyp; long time1 = System.nanoTime(); for (int ll = 0; ll < 1e6; ll++) { rho1 = top1.getZ() / 1000 + 1e-3 * randomGenerator.nextGaussian() * top1.getZ() / 1000; rho2 = top2.getZ() / 1000 + 1e-3 * randomGenerator.nextGaussian() * top2.getZ() / 1000; //tof_hyp = FastMath.abs(tof + 0.1*3600 * randomGenerator.nextGaussian()); // from topo to geo Vector3D r1_hyp = Transform.radec2geo(top1.getX(), top1.getY(), rho1, r1_site); Vector3D r2_hyp = Transform.radec2geo(top2.getX(), top2.getY(), rho2, r2_site); // System.out.println(r1_hyp.scalarMultiply(1000).getNorm()); // System.out.println(r2_hyp.scalarMultiply(1000).getNorm()); // System.out.println(tof/3600); test.lambert_problem(r1_hyp.scalarMultiply(1000), r2_hyp.scalarMultiply(1000), tof, mu, cw, multi_revs); v1_mat = test.get_v1(); Vector3D v1 = new Vector3D(v1_mat.getEntry(0, 0), v1_mat.getEntry(0, 1), v1_mat.getEntry(0, 2)); // System.out.println(v1); PVCoordinates rv1 = new PVCoordinates(r1_hyp.scalarMultiply(1000), v1); Orbit orbit_out = new KeplerianOrbit(rv1, inertialFrame, initialDate, mu); A = orbit_out.getA(); Ecc = orbit_out.getE(); // System.out.println(ll + " - " +A); out_a.println(A); out_e.println(Ecc); out_rho1.println(rho1); out_rho2.println(rho2); } long time2 = System.nanoTime(); long timeTaken = time2 - time1; out_a.close(); out_e.close(); out_rho1.close(); out_rho2.close(); System.out.println("Time taken " + timeTaken / 1000 / 1000 + " milli secs"); // get the truth test.lambert_problem(r1.scalarMultiply(1000), r2.scalarMultiply(1000), tof, mu, cw, multi_revs); v1_mat = test.get_v1(); Vector3D v1 = new Vector3D(v1_mat.getEntry(0, 0), v1_mat.getEntry(0, 1), v1_mat.getEntry(0, 2)); PVCoordinates rv1 = new PVCoordinates(r1.scalarMultiply(1000), v1); Orbit orbit_out = new KeplerianOrbit(rv1, inertialFrame, initialDate, mu); //System.out.println(orbit_out.getA()); } catch (FileNotFoundException ex) { Logger.getLogger(LambertMRev.class.getName()).log(Level.SEVERE, null, ex); } }