org.apache.druid.java.util.common.guava

Class ParallelMergeCombiningSequence.MergeCombineMetrics

java.lang.Object

org.apache.druid.java.util.common.guava.ParallelMergeCombiningSequence.MergeCombineMetrics

Enclosing class:

ParallelMergeCombiningSequence<T>

public static class ParallelMergeCombiningSequence.MergeCombineMetrics
extends Object

Metrics for the execution of a ParallelMergeCombiningSequence on the ForkJoinPool

Method Summary

Modifier and Type	Method and Description
long	getFastestPartitionInitializedTime()
long	getInputRows() Total number of input 'rows' processed by the ParallelMergeCombiningSequence
long	getInputSequences() Total number of input Sequence processed by ParallelMergeCombiningSequence
long	getOutputRows() Total number of output 'rows' produced by merging and combining the set of input Sequences
int	getParallelism() Total number of layer 1 parallel tasks (+ 1 for total number of concurrent tasks for this query)
long	getSlowestPartitionInitializedTime()
long	getTaskCount() Total number of ForkJoinPool tasks involved in executing the ParallelMergeCombiningSequence, including MergeCombinePartitioningAction, PrepareMergeCombineInputsAction, and MergeCombineAction.
long	getTotalCpuTime() Total CPU time in nanoseconds during the 'hot loop' of doing actual merging and combining in MergeCombineAction
long	getTotalTime()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getParallelism

public int getParallelism()

Total number of layer 1 parallel tasks (+ 1 for total number of concurrent tasks for this query)

getInputSequences

public long getInputSequences()

Total number of input Sequence processed by ParallelMergeCombiningSequence

getInputRows

public long getInputRows()

Total number of input 'rows' processed by the ParallelMergeCombiningSequence

getOutputRows

public long getOutputRows()

Total number of output 'rows' produced by merging and combining the set of input Sequences

getTaskCount

public long getTaskCount()

Total number of ForkJoinPool tasks involved in executing the ParallelMergeCombiningSequence, including MergeCombinePartitioningAction, PrepareMergeCombineInputsAction, and MergeCombineAction.

getTotalCpuTime

public long getTotalCpuTime()

Total CPU time in nanoseconds during the 'hot loop' of doing actual merging and combining in MergeCombineAction

getTotalTime

public long getTotalTime()

getFastestPartitionInitializedTime

public long getFastestPartitionInitializedTime()

getSlowestPartitionInitializedTime

public long getSlowestPartitionInitializedTime()