CpuCoolers (OpenHFT/Chronicle-Core 2026.5 API)

java.lang.Object
- java.lang.Enum<CpuCoolers>
- - net.openhft.chronicle.core.cooler.CpuCoolers

All Implemented Interfaces:

Serializable, Comparable<CpuCoolers>, CpuCooler
```
public enum CpuCoolers
extends Enum<CpuCoolers>
implements CpuCooler
```
An enumeration of various CPU cooler implementations, each of which disturbs the CPU in a different way. The exact way in which the CPU is disturbed is defined by the `disturb()` method of each enum constant.

Enum Constant Summary

Enum Constants
Enum Constant and Description
`AFFINITY` Switches the CPU affinity back and forth between two cores, causing the CPU to do work in moving the executing thread from one core to the other.
`ALL` Performs multiple disturbing operations at once.
`BUSY`
`BUSY_3`
`BUSY1`
`BUSY10`
`BUSY100`
`BUSY1000`
`BUSY3`
`BUSY30`
`BUSY300`
`MEMORY_COPY`
`PARK` Causes the CPU to wait without doing work for a very short period of time.
`PAUSE1`
`PAUSE10`
`PAUSE100`
`PAUSE1000`
`PAUSE3`
`PAUSE6`
`SERIALIZATION`
`YIELD`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static void`	`busyWait(double nanos)`
`static CpuCoolers`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static CpuCoolers[]`	`values()` Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum
clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface net.openhft.chronicle.core.cooler.CpuCooler
disturb

- Enum Constant Detail
  - PARK
```
public static final CpuCoolers PARK
```
    Causes the CPU to wait without doing work for a very short period of time.
  - PAUSE1
```
public static final CpuCoolers PAUSE1
```
  - PAUSE3
```
public static final CpuCoolers PAUSE3
```
  - PAUSE6
```
public static final CpuCoolers PAUSE6
```
  - PAUSE10
```
public static final CpuCoolers PAUSE10
```
  - PAUSE100
```
public static final CpuCoolers PAUSE100
```
  - PAUSE1000
```
public static final CpuCoolers PAUSE1000
```
  - YIELD
```
public static final CpuCoolers YIELD
```
  - BUSY
```
public static final CpuCoolers BUSY
```
  - BUSY_3
```
public static final CpuCoolers BUSY_3
```
  - BUSY1
```
public static final CpuCoolers BUSY1
```
  - BUSY3
```
public static final CpuCoolers BUSY3
```
  - BUSY10
```
public static final CpuCoolers BUSY10
```
  - BUSY30
```
public static final CpuCoolers BUSY30
```
  - BUSY100
```
public static final CpuCoolers BUSY100
```
  - BUSY300
```
public static final CpuCoolers BUSY300
```
  - BUSY1000
```
public static final CpuCoolers BUSY1000
```
  - AFFINITY
```
public static final CpuCoolers AFFINITY
```
    Switches the CPU affinity back and forth between two cores, causing the CPU to do work in moving the executing thread from one core to the other.
  - SERIALIZATION
```
public static final CpuCoolers SERIALIZATION
```
  - MEMORY_COPY
```
public static final CpuCoolers MEMORY_COPY
```
  - ALL
```
public static final CpuCoolers ALL
```
    Performs multiple disturbing operations at once.
- Method Detail
  - values
```
public static CpuCoolers[] values()
```
    Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
```
for (CpuCoolers c : CpuCoolers.values())
    System.out.println(c);
```
    Returns:
    
    an array containing the constants of this enum type, in the order they are declared
  - valueOf
```
public static CpuCoolers valueOf(String name)
```
    Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
    
    Parameters:
    
    name - the name of the enum constant to be returned.
    
    Returns:
    
    the enum constant with the specified name
    
    Throws:
    
    IllegalArgumentException - if this enum type has no constant with the specified name
    
    NullPointerException - if the argument is null
  - busyWait
```
public static void busyWait(double nanos)
```

Enum CpuCoolers

Enum Constant Summary

Method Summary

Methods inherited from class java.lang.Enum

Methods inherited from class java.lang.Object

Methods inherited from interface net.openhft.chronicle.core.cooler.CpuCooler

Enum Constant Detail

PARK

PAUSE1

PAUSE3

PAUSE6

PAUSE10

PAUSE100

PAUSE1000

YIELD

BUSY

BUSY_3

BUSY1

BUSY3

BUSY10

BUSY30

BUSY100

BUSY300

BUSY1000

AFFINITY

SERIALIZATION

MEMORY_COPY

ALL

Method Detail

values

valueOf

busyWait