ParallelMergeCombiningSequence.MergeCombineMetrics (druid-processing 28.0.0 API)

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

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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 `Sequence`s
`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 `ParallelMergeCombiningSequence.MergeCombinePartitioningAction`, `ParallelMergeCombiningSequence.PrepareMergeCombineInputsAction`, and `ParallelMergeCombiningSequence.MergeCombineAction`.
`long`	`getTotalCpuTime()`	Total CPU time in nanoseconds during the 'hot loop' of doing actual merging and combining in `ParallelMergeCombiningSequence.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 ParallelMergeCombiningSequence.MergeCombinePartitioningAction, ParallelMergeCombiningSequence.PrepareMergeCombineInputsAction, and ParallelMergeCombiningSequence.MergeCombineAction.
  - getTotalCpuTime
```
public long getTotalCpuTime()
```
    Total CPU time in nanoseconds during the 'hot loop' of doing actual merging and combining in ParallelMergeCombiningSequence.MergeCombineAction
  - getTotalTime
```
public long getTotalTime()
```
  - getFastestPartitionInitializedTime
```
public long getFastestPartitionInitializedTime()
```
  - getSlowestPartitionInitializedTime
```
public long getSlowestPartitionInitializedTime()
```