Examples with Scalar org.eclipse.test.internal.performance.data.Scalar used on opensource projects

Example 6 with Scalar

use of org.eclipse.test.internal.performance.data.Scalar in project eclipse.platform.releng by eclipse.

the class StatisticsSession method computeStatsFromMeasurements.

private Statistics computeStatsFromMeasurements(Dim dimension, Set<Integer> steps) {
    Statistics stats = new Statistics();
    long[] mags;
    switch(steps.size()) {
        case 1:
            // if there is only one Step, we don't calculate the delta. happens for startup tests
            mags = new long[fDataPoints.length];
            for (int i = 0; i < fDataPoints.length; i++) {
                Scalar sc = fDataPoints[i].getScalar(dimension);
                mags[i] = sc == null ? 0 : sc.getMagnitude();
            }
            break;
        case 2:
            int count = fDataPoints.length / 2;
            mags = new long[count];
            for (int i = 0; i < count; i++) {
                DataPoint before = fDataPoints[2 * i];
                // $NON-NLS-1$
                Assert.assertTrue("wrong order of steps", before.getStep() == InternalPerformanceMeter.BEFORE);
                DataPoint after = fDataPoints[2 * i + 1];
                // $NON-NLS-1$
                Assert.assertTrue("wrong order of steps", after.getStep() == InternalPerformanceMeter.AFTER);
                Scalar delta = getDelta(before, after, dimension);
                long magnitude = delta.getMagnitude();
                mags[i] = magnitude;
            }
            break;
        default:
            // $NON-NLS-1$
            Assert.fail("cannot handle more than two steps in measurement mode");
            // dummy
            return null;
    }
    for (int i = 0; i < mags.length; i++) {
        stats.sum += mags[i];
        stats.count++;
    }
    if (stats.count > 0) {
        stats.average = (double) stats.sum / stats.count;
        if (stats.count == 1) {
            stats.stddev = 0;
        } else {
            double squaredDeviations = 0;
            for (int i = 0; i < mags.length; i++) {
                double deviation = stats.average - mags[i];
                squaredDeviations += deviation * deviation;
            }
            // unbiased sample stdev
            stats.stddev = Math.sqrt(squaredDeviations / (stats.count - 1));
        }
    } else {
        stats.average = 0;
        stats.stddev = 0;
    }
    return stats;
}

Example 7 with Scalar

use of org.eclipse.test.internal.performance.data.Scalar in project eclipse.platform.releng by eclipse.

the class TestPerformanceMeter method addPair.

void addPair(Dim dimension, long start, long end) {
    fStart.put(dimension, new Scalar(dimension, start));
    fStop.put(dimension, new Scalar(dimension, end));
}

Example 8 with Scalar

use of org.eclipse.test.internal.performance.data.Scalar in project eclipse.platform.releng by eclipse.

the class DBTests method testBasicDBFunctionality.

public void testBasicDBFunctionality() {
    Performance perf = Performance.getDefault();
    TestPerformanceMeter pm1 = new TestPerformanceMeter(SCENARIO_NAME_1);
    pm1.addPair(InternalDimensions.CPU_TIME, 100, 1000);
    pm1.addPair(InternalDimensions.WORKING_SET, 1000, 2000);
    pm1.start();
    pm1.stop();
    pm1.commit();
    pm1.dispose();
    TestPerformanceMeter pm2 = new TestPerformanceMeter(SCENARIO_NAME_2);
    pm2.addPair(InternalDimensions.CPU_TIME, 100, 1000);
    pm2.addPair(InternalDimensions.WORKING_SET, 1000, 2000);
    perf.tagAsGlobalSummary(pm2, SHORT_NAME_2, new Dimension[] { Dimension.CPU_TIME, Dimension.USED_JAVA_HEAP });
    pm2.start();
    pm2.stop();
    pm2.commit();
    pm2.dispose();
    TestPerformanceMeter pm3 = new TestPerformanceMeter(SCENARIO_NAME_3);
    pm3.addPair(InternalDimensions.CPU_TIME, 100, 1000);
    pm3.addPair(InternalDimensions.WORKING_SET, 1000, 2000);
    perf.tagAsGlobalSummary(pm3, SHORT_NAME_3, Dimension.CPU_TIME);
    pm3.start();
    pm3.stop();
    pm3.commit();
    pm3.dispose();
    TestPerformanceMeter pm4 = new TestPerformanceMeter(SCENARIO_NAME_4);
    pm4.addPair(InternalDimensions.CPU_TIME, 100, 1000);
    pm4.addPair(InternalDimensions.WORKING_SET, 1000, 2000);
    perf.tagAsSummary(pm4, SHORT_NAME_4, Dimension.USED_JAVA_HEAP);
    pm4.start();
    pm4.stop();
    pm4.commit();
    pm4.dispose();
    // 
    Variations v = new Variations();
    // $NON-NLS-1$
    v.put(CONFIG, "test");
    // $NON-NLS-1$
    v.put(BUILD, "b0001");
    // $NON-NLS-1$ //$NON-NLS-2$
    v.put("jvm", "sun142");
    DataPoint[] points = DB.queryDataPoints(v, SCENARIO_NAME_1, null);
    assertEquals(1, points.length);
    DataPoint dp = points[0];
    Dim[] dimensions = dp.getDimensions();
    assertEquals(2, dimensions.length);
    Scalar s1 = dp.getScalar(InternalDimensions.CPU_TIME);
    assertNotNull(s1);
    assertEquals(900, s1.getMagnitude());
    Scalar s2 = dp.getScalar(InternalDimensions.WORKING_SET);
    assertNotNull(s2);
    assertEquals(1000, s2.getMagnitude());
    // 
    Set<Dim> dims = new HashSet<>();
    dims.add(InternalDimensions.WORKING_SET);
    points = DB.queryDataPoints(v, SCENARIO_NAME_1, dims);
    assertEquals(1, points.length);
    dimensions = points[0].getDimensions();
    assertEquals(1, dimensions.length);
    Scalar s = points[0].getScalar(InternalDimensions.WORKING_SET);
    assertNotNull(s);
    assertEquals(1000, s.getMagnitude());
    // 
    List<String> buildNames = new ArrayList<>();
    Variations v2 = new Variations();
    // $NON-NLS-1$
    v2.put(CONFIG, "%");
    // $NON-NLS-1$
    v2.put(BUILD, "b%");
    // $NON-NLS-1$
    DB.queryDistinctValues(buildNames, BUILD, v2, "%");
    assertEquals(1, buildNames.size());
    // $NON-NLS-1$
    assertEquals("b0001", buildNames.get(0));
    SummaryEntry[] fps = DB.querySummaries(PerformanceTestPlugin.getVariations(), null);
    assertEquals(3, fps.length);
    assertEquals(SCENARIO_NAME_2, fps[0].scenarioName);
    assertEquals(SHORT_NAME_2, fps[0].shortName);
    assertEquals(Dimension.USED_JAVA_HEAP, fps[0].dimension);
    assertEquals(SCENARIO_NAME_2, fps[1].scenarioName);
    assertEquals(SHORT_NAME_2, fps[1].shortName);
    assertEquals(Dimension.CPU_TIME, fps[1].dimension);
    assertEquals(SCENARIO_NAME_3, fps[2].scenarioName);
    assertEquals(SHORT_NAME_3, fps[2].shortName);
    assertEquals(Dimension.CPU_TIME, fps[2].dimension);
    // $NON-NLS-1$
    SummaryEntry[] fps2 = DB.querySummaries(PerformanceTestPlugin.getVariations(), "foo.%");
    assertEquals(2, fps2.length);
    assertEquals(SCENARIO_NAME_3, fps2[0].scenarioName);
    assertEquals(SHORT_NAME_3, fps2[0].shortName);
    assertEquals(Dimension.CPU_TIME, fps2[0].dimension);
    assertEquals(SCENARIO_NAME_4, fps2[1].scenarioName);
    assertEquals(SHORT_NAME_4, fps2[1].shortName);
    assertEquals(Dimension.USED_JAVA_HEAP, fps2[1].dimension);
}

Example 9 with Scalar

use of org.eclipse.test.internal.performance.data.Scalar in project eclipse.platform.releng by eclipse.

the class SystemTimePerformanceMeter method createDataPoint.

private DataPoint createDataPoint(int step, Dim dimension, long value) {
    Map<Dim, Scalar> scalars = new HashMap<>();
    scalars.put(dimension, new Scalar(dimension, value));
    return new DataPoint(step, scalars);
}