Examples of org.springframework.util.StopWatch

org.springframework.util.StopWatch
Simple stop watch, allowing for timing of a number of tasks, exposing total running time and running time for each named task.
Conceals use of System.currentTimeMillis(), improving the readability of application code and reducing the likelihood of calculation errors.
Note that this object is not designed to be thread-safe and does not use synchronization.
This class is normally used to verify performance during proof-of-concepts and in development, rather than as part of production applications. @author Rod Johnson @author Juergen Hoeller @author Sam Brannen @since May 2, 2001


    @Test
    public void testConcurrentReadWrite10PercentUnstructured() throws InterruptedException, ExecutionException {
        ExecutorService executor = Executors.newFixedThreadPool(300);
        ExecutorCompletionService<Boolean> service = new ExecutorCompletionService<Boolean>(executor);
        StopWatch stopWatch = new StopWatch("testConcurrentReadWrite10PercentUnstructured");
        stopWatch.start(Thread.currentThread().getName() + " reading // writing nodes (10% writers)");
        for (int i = 0; i < 1000; i++) {
            if (i % 10 == 0) {
                service.submit(new Writer("nt:unstructured"), Boolean.TRUE);
            } else {
                service.submit(new Reader(), Boolean.TRUE);
            }
        }
        for (int i = 0; i < 1000; i++) {
            Boolean aBoolean = service.take().get();
        }
        stopWatch.stop();
        logger.error(stopWatch.prettyPrint());
        executor.shutdown();
    }

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        Logger metricsLogger = Logger.getLogger("loggingService");
        Logger profilerMetricsLogger = Logger.getLogger("profilerLoggingService");
        profilerMetricsLogger.setLevel(Level.OFF);
        
        metricsLogger.setLevel(Level.OFF);
        StopWatch stopWatch = new StopWatch();
        stopWatch.start("Create " + TAGS_TO_CREATE + " without logs");
        for (int i = 0; i < TAGS_TO_CREATE; i++) {
            service.createTag(generateTagName(), TESTSITE_NAME);
        }
        stopWatch.stop();
        final long withoutLogs = stopWatch.getLastTaskTimeMillis();
        
        deleteAllTags();
        
        for (int i = 0; i < 3; i++) {
            service.createTag(generateTagName(), TESTSITE_NAME);
        }
        
        metricsLogger.setLevel(Level.TRACE);
        stopWatch.start("Create " + TAGS_TO_CREATE + " with logs");
        for (int i = 0; i < TAGS_TO_CREATE; i++) {
            service.createTag(generateTagName(), TESTSITE_NAME);
        }
        stopWatch.stop();
        final long withLogs = stopWatch.getLastTaskTimeMillis();
        
        logger.info(stopWatch.prettyPrint());
        
        if (withLogs > withoutLogs) {
            assertThat("Logs has more than 5% impact on peformance",
                    ((Math.abs(withLogs - withoutLogs) / (float)withoutLogs) * 100), (Matcher<Object>) lessThan((float)5));
        }

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    @Test
    public void testConcurrentSearchIsDescendant() throws InterruptedException, ExecutionException {
        ExecutorService executor = Executors.newFixedThreadPool(300);
        ExecutorCompletionService<Boolean> service = new ExecutorCompletionService<Boolean>(executor);
        StopWatch stopWatch = new StopWatch("testConcurrentSearchIsDescendant");
        stopWatch.start(Thread.currentThread().getName() + " search jnt:pages nodes is descendant site node");
        for (int i = 0; i < 1000; i++) {
            service.submit(new Search("select * from [jnt:page] as page where isdescendantnode(page, 'path') "), Boolean.TRUE);
        }
        for (int i = 0; i < 1000; i++) {
            Boolean aBoolean = service.take().get();
        }
        stopWatch.stop();
        logger.error(stopWatch.prettyPrint());
        executor.shutdown();
    }

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    @Test
    public void testConcurrentSearchIsChild() throws InterruptedException, ExecutionException {
        ExecutorService executor = Executors.newFixedThreadPool(300);
        ExecutorCompletionService<Boolean> service = new ExecutorCompletionService<Boolean>(executor);
        StopWatch stopWatch = new StopWatch("testConcurrentSearchIsChild");
        stopWatch.start(Thread.currentThread().getName() + " search jnt:pages nodes is child site node");
        for (int i = 0; i < 1000; i++) {
            service.submit(new Search("select * from [jnt:page] as page where ischildnode(page, 'path') "), Boolean.TRUE);
        }
        for (int i = 0; i < 1000; i++) {
            Boolean aBoolean = service.take().get();
        }
        stopWatch.stop();
        logger.error(stopWatch.prettyPrint());
        executor.shutdown();
    }

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    @Test
    public void testConcurrentSearchIsDescendantAndIteratorResults() throws InterruptedException, ExecutionException {
        ExecutorService executor = Executors.newFixedThreadPool(300);
        ExecutorCompletionService<Boolean> service = new ExecutorCompletionService<Boolean>(executor);
        StopWatch stopWatch = new StopWatch("testConcurrentSearchIsDescendantAndIteratorResults");
        stopWatch.start(Thread.currentThread().getName() + " search jnt:page nodes is descendant site node, iterator results for query results size = -1 ");
        for (int i = 0; i < 1000; i++) {
            service.submit(new SearchIteratorResults("select * from [jnt:page] as page where isdescendantnode(page, 'path') "), Boolean.TRUE);
        }
        for (int i = 0; i < 1000; i++) {
            Boolean aBoolean = service.take().get();
        }
        stopWatch.stop();
        logger.error(stopWatch.prettyPrint());
        executor.shutdown();
    }

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    @Test
    public void testConcurrentSearchIsCreatedBeforeNow() throws InterruptedException, ExecutionException {
        ExecutorService executor = Executors.newFixedThreadPool(300);
        ExecutorCompletionService<Boolean> service = new ExecutorCompletionService<Boolean>(executor);
        StopWatch stopWatch = new StopWatch("testConcurrentSearchIsCreatedBeforeNow");
        stopWatch.start(Thread.currentThread().getName() + " search jnt:page nodes is created before now");
        for (int i = 0; i < 1000; i++) {
            service.submit(new Search("select * from [jnt:page] as page where page.[jcr:created] < CAST(" + System.currentTimeMillis() + " as date) "), Boolean.TRUE);
        }
        for (int i = 0; i < 1000; i++) {
            Boolean aBoolean = service.take().get();
        }
        stopWatch.stop();
        logger.error(stopWatch.prettyPrint());
        executor.shutdown();
    }

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    @Test
    public void testConcurrentSearchIsCreatedBeforeNowAndIsDescendant() throws InterruptedException, ExecutionException {
        ExecutorService executor = Executors.newFixedThreadPool(300);
        ExecutorCompletionService<Boolean> service = new ExecutorCompletionService<Boolean>(executor);
        StopWatch stopWatch = new StopWatch("testConcurrentSearchIsCreatedBeforeNowAndIsDescendant");
        stopWatch.start(Thread.currentThread().getName() + " search jnt:page nodes is created before now and is descendant site node");
        for (int i = 0; i < 1000; i++) {
            service.submit(new Search("select * from [jnt:page] as page where isdescendantnode(page, 'path') and page.[jcr:created] < CAST(" + System.currentTimeMillis() + " as date) "), Boolean.TRUE);
        }
        for (int i = 0; i < 1000; i++) {
            Boolean aBoolean = service.take().get();
        }
        stopWatch.stop();
        logger.error(stopWatch.prettyPrint());
        executor.shutdown();
    }

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        private final Random random = new Random();
        StopWatch stopWatch;
        private JCRTemplate jcrTemplate;


        public Reader() {
            stopWatch = new StopWatch("ReaderRunnable");
            stopWatch.start(Thread.currentThread().getName() + " reading node");
            jcrTemplate = JCRTemplate.getInstance();
        }

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        StopWatch stopWatch;
        private JCRTemplate jcrTemplate;
        private String primaryNodeTypeName;


        public Writer(String primaryNodeTypeName) {
            stopWatch = new StopWatch("WriterRunnable");
            jcrTemplate = JCRTemplate.getInstance();
            this.primaryNodeTypeName = primaryNodeTypeName;
        }

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        private JCRTemplate jcrTemplate;
        private String testQuery;


        public Search(String s) {
            testQuery = s;
            stopWatch = new StopWatch("SearchRunnable");
            jcrTemplate = JCRTemplate.getInstance();
        }

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