Examples with Histogram org.springside.modules.metrics.metric.Histogram used on opensource projects

Example 1 with Histogram

use of org.springside.modules.metrics.metric.Histogram in project springside4 by springside.

the class ReportScheduler method report.

/**
	 * 定期计算所有Metrics, 并调用所有Reporter进行汇报.
	 */
public void report() {
    // 取出所有Metrics, 未按名称排序.
    Map<String, Gauge> gaugeMap = metricRegistry.getGauges();
    Map<String, Counter> counterMap = metricRegistry.getCounters();
    Map<String, Histogram> histogramMap = metricRegistry.getHistograms();
    Map<String, Timer> timerMap = metricRegistry.getTimers();
    // 计算单位时间内的metrics值, 存入该Metrics的Snapshot中，并清零原始数据
    for (Gauge gauge : gaugeMap.values()) {
        gauge.calculateMetric();
    }
    for (Counter counter : counterMap.values()) {
        counter.calculateMetric();
    }
    for (Histogram histogram : histogramMap.values()) {
        histogram.calculateMetric();
    }
    for (Timer timer : timerMap.values()) {
        timer.calculateMetric();
    }
    // 调度所有Reporters 输出 metrics值
    for (Reporter reporter : reporters) {
        reporter.report(gaugeMap, counterMap, histogramMap, timerMap);
    }
}

Example 2 with Histogram

use of org.springside.modules.metrics.metric.Histogram in project springside4 by springside.

the class HistogramTest method emptyMesures.

@Test
public void emptyMesures() {
    Histogram histogram = new Histogram(90d, 95d);
    HistogramMetric metric = histogram.calculateMetric();
    assertThat(metric.min).isZero();
    assertThat(metric.max).isZero();
    assertThat(metric.avg).isZero();
    assertThat(metric.pcts.get(90d)).isZero();
}

Example 3 with Histogram

use of org.springside.modules.metrics.metric.Histogram in project springside4 by springside.

the class ReporterTest method runReport.

private void runReport(Reporter reporter) {
    MetricRegistry metricRegistry = new MetricRegistry();
    MockClock clock = new MockClock();
    Counter.clock = clock;
    Timer.clock = clock;
    // counter
    Counter counter = metricRegistry.counter(MetricRegistry.name("UserService", "getUser.counter"));
    counter.inc(4);
    Counter counter2 = metricRegistry.counter(MetricRegistry.name("UserService", "setUser.counter"));
    counter2.inc(6);
    clock.increaseTime(1000);
    // histogram
    Histogram histogram = metricRegistry.histogram(MetricRegistry.name("UserService", "getUser.latency"));
    for (int i = 1; i <= 100; i++) {
        histogram.update(i);
    }
    Histogram histogram2 = metricRegistry.histogram(MetricRegistry.name("UserService", "setUser.latency"));
    for (int i = 1; i <= 100; i++) {
        histogram2.update(i * 2);
    }
    // timer
    Timer timer = metricRegistry.timer(MetricRegistry.name("UserService", "getUser.timer"));
    for (int i = 1; i <= 10; i++) {
        TimerContext timerContext = timer.start();
        clock.increaseTime(25);
        timerContext.stop();
    }
    Timer timer2 = metricRegistry.timer(MetricRegistry.name("UserService", "setUser.timer"));
    for (int i = 1; i <= 10; i++) {
        TimerContext timerContext = timer2.start();
        clock.increaseTime(75);
        timerContext.stop();
    }
    // totally 2 seconds past
    ReportScheduler scheduler = new ReportScheduler(metricRegistry, reporter);
    scheduler.report();
}

Example 4 with Histogram

use of org.springside.modules.metrics.metric.Histogram in project springside4 by springside.

the class HistogramTest method fewData.

@Test
public void fewData() {
    Histogram histogram = new Histogram(90d, 95d);
    histogram.update(1);
    HistogramMetric metric = histogram.calculateMetric();
    assertThat(metric.pcts.get(90d)).isEqualTo(1);
    assertThat(metric.pcts.get(95d)).isEqualTo(1);
    for (int i = 1; i <= 3; i++) {
        histogram.update(i);
    }
    metric = histogram.calculateMetric();
    assertThat(metric.min).isEqualTo(1);
    assertThat(metric.max).isEqualTo(3);
    assertThat(metric.avg).isEqualTo(2);
    assertThat(metric.pcts.get(90d)).isEqualTo(3);
    assertThat(metric.pcts.get(95d)).isEqualTo(3);
}

Example 5 with Histogram

use of org.springside.modules.metrics.metric.Histogram in project springside4 by springside.

the class HistogramTest method normal.

@Test
public void normal() {
    Histogram histogram = new Histogram(90d, 95d);
    for (int i = 1; i <= 100; i++) {
        histogram.update(i);
    }
    HistogramMetric metric = histogram.calculateMetric();
    assertThat(metric.min).isEqualTo(1);
    assertThat(metric.max).isEqualTo(100);
    assertThat(metric.avg).isEqualTo(50.5);
    assertThat(metric.pcts.get(90d)).isEqualTo(90);
    assertThat(metric.pcts.get(95d)).isEqualTo(95);
    for (int i = 1; i <= 100; i++) {
        histogram.update(i * 2);
    }
    metric = histogram.calculateMetric();
    assertThat(metric.min).isEqualTo(2);
    assertThat(metric.max).isEqualTo(200);
    assertThat(metric.avg).isEqualTo(101);
    assertThat(metric.pcts.get(90d)).isEqualTo(180);
    assertThat(metric.pcts.get(95d)).isEqualTo(190);
}