diff options
Diffstat (limited to 'kamon-core/src/main/scala/kamon')
-rw-r--r-- | kamon-core/src/main/scala/kamon/metric/instrument/Histogram.scala | 29 | ||||
-rw-r--r-- | kamon-core/src/main/scala/kamon/metric/instrument/ModifiedAtomicHistogram.scala (renamed from kamon-core/src/main/scala/kamon/metric/instrument/AtomicHistogramFieldsAccessor.scala) | 24 |
2 files changed, 16 insertions, 37 deletions
diff --git a/kamon-core/src/main/scala/kamon/metric/instrument/Histogram.scala b/kamon-core/src/main/scala/kamon/metric/instrument/Histogram.scala index 5c4c7f71..d2fb88a2 100644 --- a/kamon-core/src/main/scala/kamon/metric/instrument/Histogram.scala +++ b/kamon-core/src/main/scala/kamon/metric/instrument/Histogram.scala @@ -17,9 +17,9 @@ package kamon.metric.instrument import java.nio.LongBuffer -import org.HdrHistogram.AtomicHistogramFieldsAccessor -import kamon.metric.instrument.Histogram.{ Snapshot, DynamicRange } -import org.HdrHistogram.AtomicHistogram + +import kamon.metric.instrument.Histogram.{ DynamicRange, Snapshot } +import org.HdrHistogram.ModifiedAtomicHistogram trait Histogram extends Instrument { type SnapshotType = Histogram.Snapshot @@ -54,11 +54,9 @@ object Histogram { * @param lowestDiscernibleValue * The lowest value that can be discerned (distinguished from 0) by the histogram.Must be a positive integer that * is >= 1. May be internally rounded down to nearest power of 2. - * * @param highestTrackableValue * The highest value to be tracked by the histogram. Must be a positive integer that is >= (2 * lowestDiscernibleValue). * Must not be larger than (Long.MAX_VALUE/2). - * * @param precision * The number of significant decimal digits to which the histogram will maintain value resolution and separation. * Must be a non-negative integer between 1 and 3. @@ -108,9 +106,8 @@ object Histogram { * The collect(..) operation extracts all the recorded values from the histogram and resets the counts, but still * leave it in a consistent state even in the case of concurrent modification while the snapshot is being taken. */ -class HdrHistogram(dynamicRange: DynamicRange) extends AtomicHistogram(dynamicRange.lowestDiscernibleValue, - dynamicRange.highestTrackableValue, dynamicRange.precision) with Histogram with AtomicHistogramFieldsAccessor { - import AtomicHistogramFieldsAccessor.totalCountUpdater +class HdrHistogram(dynamicRange: DynamicRange) extends ModifiedAtomicHistogram(dynamicRange.lowestDiscernibleValue, + dynamicRange.highestTrackableValue, dynamicRange.precision) with Histogram { def record(value: Long): Unit = recordValue(value) @@ -125,7 +122,7 @@ class HdrHistogram(dynamicRange: DynamicRange) extends AtomicHistogram(dynamicRa val measurementsArray = Array.ofDim[Long](buffer.limit()) buffer.get(measurementsArray, 0, measurementsArray.length) - new CompactHdrSnapshot(nrOfMeasurements, measurementsArray, unitMagnitude(), subBucketHalfCount(), subBucketHalfCountMagnitude()) + new CompactHdrSnapshot(nrOfMeasurements, measurementsArray, protectedUnitMagnitude(), protectedSubBucketHalfCount(), protectedSubBucketHalfCountMagnitude()) } def getCounts = countsArray().length() @@ -148,22 +145,8 @@ class HdrHistogram(dynamicRange: DynamicRange) extends AtomicHistogram(dynamicRa index += 1 } - - reestablishTotalCount(nrOfMeasurements) nrOfMeasurements } - - private def reestablishTotalCount(diff: Long): Unit = { - def tryUpdateTotalCount: Boolean = { - val previousTotalCount = totalCountUpdater.get(this) - val newTotalCount = previousTotalCount - diff - - totalCountUpdater.compareAndSet(this, previousTotalCount, newTotalCount) - } - - while (!tryUpdateTotalCount) {} - } - } case class CompactHdrSnapshot(val numberOfMeasurements: Long, compactRecords: Array[Long], unitMagnitude: Int, diff --git a/kamon-core/src/main/scala/kamon/metric/instrument/AtomicHistogramFieldsAccessor.scala b/kamon-core/src/main/scala/kamon/metric/instrument/ModifiedAtomicHistogram.scala index e79090a8..eb01d114 100644 --- a/kamon-core/src/main/scala/kamon/metric/instrument/AtomicHistogramFieldsAccessor.scala +++ b/kamon-core/src/main/scala/kamon/metric/instrument/ModifiedAtomicHistogram.scala @@ -16,20 +16,16 @@ package org.HdrHistogram -import java.util.concurrent.atomic.{ AtomicLongArray, AtomicLongFieldUpdater } +import java.util.concurrent.atomic.AtomicLongArray -trait AtomicHistogramFieldsAccessor { - self: AtomicHistogram ⇒ +abstract class ModifiedAtomicHistogram(low: Long, high: Long, precision: Int) + extends AtomicHistogram(low, high, precision) { self ⇒ - def countsArray(): AtomicLongArray = self.counts + override def incrementTotalCount(): Unit = {} + override def addToTotalCount(value: Long): Unit = {} - def unitMagnitude(): Int = self.unitMagnitude - - def subBucketHalfCount(): Int = self.subBucketHalfCount - - def subBucketHalfCountMagnitude(): Int = self.subBucketHalfCountMagnitude -} - -object AtomicHistogramFieldsAccessor { - def totalCountUpdater(): AtomicLongFieldUpdater[AtomicHistogram] = AtomicHistogram.totalCountUpdater -} + def countsArray(): AtomicLongArray = counts + def protectedUnitMagnitude(): Int = unitMagnitude + def protectedSubBucketHalfCount(): Int = subBucketHalfCount + def protectedSubBucketHalfCountMagnitude(): Int = subBucketHalfCountMagnitude +}
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