Package org.apache.flink.runtime.webmonitor.threadinfo

Class VertexFlameGraphFactory

java.lang.Object

org.apache.flink.runtime.webmonitor.threadinfo.VertexFlameGraphFactory

public class VertexFlameGraphFactory
extends Object

Factory class for creating Flame Graph representations.

Constructor Summary

Constructors

Constructor	Description
VertexFlameGraphFactory()

Method Summary

Modifier and Type	Method	Description
static VertexFlameGraph	createFullFlameGraphFrom(VertexThreadInfoStats sample)	Converts VertexThreadInfoStats into a FlameGraph.
static VertexFlameGraph	createOffCpuFlameGraph(VertexThreadInfoStats sample)	Converts VertexThreadInfoStats into a FlameGraph representing blocked (Off-CPU) threads.
static VertexFlameGraph	createOnCpuFlameGraph(VertexThreadInfoStats sample)	Converts VertexThreadInfoStats into a FlameGraph representing actively running (On-CPU) threads.

Methods inherited from class java.lang.Object

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

Constructor Detail

VertexFlameGraphFactory

public VertexFlameGraphFactory()

Method Detail

createFullFlameGraphFrom

public static VertexFlameGraph createFullFlameGraphFrom(VertexThreadInfoStats sample)

Converts VertexThreadInfoStats into a FlameGraph.

Parameters:

sample - Thread details sample containing stack traces.

Returns:

FlameGraph data structure

createOffCpuFlameGraph

public static VertexFlameGraph createOffCpuFlameGraph(VertexThreadInfoStats sample)

Converts VertexThreadInfoStats into a FlameGraph representing blocked (Off-CPU) threads.

Includes threads in states Thread.State.[TIMED_WAITING, BLOCKED, WAITING].

Parameters:

sample - Thread details sample containing stack traces.

Returns:

FlameGraph data structure.

createOnCpuFlameGraph

public static VertexFlameGraph createOnCpuFlameGraph(VertexThreadInfoStats sample)

Converts VertexThreadInfoStats into a FlameGraph representing actively running (On-CPU) threads.

Includes threads in states Thread.State.[RUNNABLE, NEW].

Parameters:

sample - Thread details sample containing stack traces.

Returns:

FlameGraph data structure