Class WindowsCentralProcessor

java.lang.Object

oshi.hardware.common.AbstractCentralProcessor

oshi.hardware.common.platform.windows.WindowsCentralProcessor

All Implemented Interfaces:

CentralProcessor

@ThreadSafe
public abstract class WindowsCentralProcessor
extends AbstractCentralProcessor

Common non-native logic for Windows Central Processor implementations.

Nested Class Summary

Nested classes/interfaces inherited from interface CentralProcessor

CentralProcessor.LogicalProcessor, CentralProcessor.PhysicalProcessor, CentralProcessor.ProcessorCache, CentralProcessor.ProcessorIdentifier, CentralProcessor.TickType

Field Summary

Fields

Modifier and Type	Field	Description
protected static final boolean	USE_CPU_UTILITY
protected static final boolean	USE_LEGACY_SYSTEM_COUNTERS
protected static final boolean	USE_LOAD_AVERAGE

Constructor Summary

Constructors

Constructor	Description
WindowsCentralProcessor()

Method Summary

Modifier and Type	Method	Description
protected void	buildNumaNodeProcMap(List<CentralProcessor.LogicalProcessor> logProcs)	Builds the numaNodeProcToLogicalProcMap from the logical processor list.
protected Map<ProcessorInformation.ProcessorUtilityTickCountProperty, List<Long>>	getInitialUtilityCounters()	Gets the initial utility counters.
protected Map<String,Integer>	getNumaNodeProcToLogicalProcMap()	Gets the numaNodeProcToLogicalProcMap.
protected long	lazilyCalculateMultiplier(long deltaBase, long deltaT)	Lazily calculate the capacity tick multiplier once.
protected static String	parseIdentifier(String identifier, String key)	Parses identifier string
protected long[][]	processTickData(List<String> instances, List<Long> systemList, List<Long> userList, List<Long> irqList, List<Long> softIrqList, List<Long> idleList, List<Long> baseList, List<Long> systemUtility, List<Long> processorUtility, List<Long> processorUtilityBase, List<Long> initSystemList, List<Long> initUserList, List<Long> initBase, List<Long> initSystemUtility, List<Long> initProcessorUtility, List<Long> initProcessorUtilityBase)	Processes raw perfmon tick data into the standard tick array format.
protected abstract Map<ProcessorInformation.ProcessorUtilityTickCountProperty, List<Long>>	queryProcessorUtilityCounters()	Subclasses provide the current utility counters for re-initialization.
protected void	setInitialUtilityCounters(Map<ProcessorInformation.ProcessorUtilityTickCountProperty, List<Long>> counters)	Sets the initial utility counters.

Methods inherited from class AbstractCentralProcessor

createProcessorID, createProcessorID, createProcListFromDmesg, getContextSwitches, getCurrentFreq, getFeatureFlags, getInterrupts, getLogicalProcessorCount, getLogicalProcessors, getMaxFreq, getPhysicalPackageCount, getPhysicalProcessorCount, getPhysicalProcessors, getProcessorCaches, getProcessorCpuLoadBetweenTicks, getProcessorCpuLoadBetweenTicks, getProcessorCpuLoadTicks, getProcessorIdentifier, getSystemCpuLoadBetweenTicks, getSystemCpuLoadBetweenTicks, getSystemCpuLoadTicks, initProcessorCounts, orderedProcCaches, queryContextSwitches, queryCurrentFreq, queryInterrupts, queryMaxFreq, queryProcessorCpuLoadTicks, queryProcessorId, querySystemCpuLoadTicks, toString

Methods inherited from class Object

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

Methods inherited from interface CentralProcessor

getProcessorCpuLoad, getSystemCpuLoad, getSystemLoadAverage

Field Details

USE_LEGACY_SYSTEM_COUNTERS

protected static final boolean USE_LEGACY_SYSTEM_COUNTERS

USE_LOAD_AVERAGE

protected static final boolean USE_LOAD_AVERAGE

USE_CPU_UTILITY

protected static final boolean USE_CPU_UTILITY

Constructor Details

WindowsCentralProcessor

public WindowsCentralProcessor()

Method Details

getNumaNodeProcToLogicalProcMap

protected Map<String,Integer> getNumaNodeProcToLogicalProcMap()

Gets the numaNodeProcToLogicalProcMap.

Returns:

the map

getInitialUtilityCounters

protected Map<ProcessorInformation.ProcessorUtilityTickCountProperty, List<Long>> getInitialUtilityCounters()

Gets the initial utility counters.

Returns:

the initial utility counters

setInitialUtilityCounters

protected void setInitialUtilityCounters(Map<ProcessorInformation.ProcessorUtilityTickCountProperty, List<Long>> counters)

Sets the initial utility counters.

Parameters:

counters - the counters to set

buildNumaNodeProcMap

protected void buildNumaNodeProcMap(List<CentralProcessor.LogicalProcessor> logProcs)

Builds the numaNodeProcToLogicalProcMap from the logical processor list.

Parameters:

logProcs - the list of logical processors

parseIdentifier

protected static String parseIdentifier(String identifier,
 String key)

Parses identifier string

Parameters:

identifier - the full identifier string

key - the key to retrieve

Returns:

the string following id

lazilyCalculateMultiplier

protected long lazilyCalculateMultiplier(long deltaBase,
 long deltaT)

Lazily calculate the capacity tick multiplier once.

Parameters:

deltaBase - The difference in base ticks.

deltaT - The difference in elapsed 100NS time

Returns:

The ratio of elapsed time to base ticks

queryProcessorUtilityCounters

protected abstract Map<ProcessorInformation.ProcessorUtilityTickCountProperty, List<Long>> queryProcessorUtilityCounters()

Subclasses provide the current utility counters for re-initialization.

Returns:

the current processor utility counter values

processTickData

protected long[][] processTickData(List<String> instances,
 List<Long> systemList,
 List<Long> userList,
 List<Long> irqList,
 List<Long> softIrqList,
 List<Long> idleList,
 List<Long> baseList,
 List<Long> systemUtility,
 List<Long> processorUtility,
 List<Long> processorUtilityBase,
 List<Long> initSystemList,
 List<Long> initUserList,
 List<Long> initBase,
 List<Long> initSystemUtility,
 List<Long> initProcessorUtility,
 List<Long> initProcessorUtilityBase)

Processes raw perfmon tick data into the standard tick array format. Handles both legacy and utility-based approaches.

Parameters:

instances - the perfmon instance names

systemList - system (privileged) time ticks

userList - user time ticks

irqList - IRQ time ticks

softIrqList - soft IRQ (DPC) time ticks

idleList - idle time ticks

baseList - timestamp base (for utility mode), may be null

systemUtility - system utility ticks, may be null

processorUtility - processor utility ticks, may be null

processorUtilityBase - processor utility base, may be null

initSystemList - initial system ticks (for utility mode), may be null

initUserList - initial user ticks (for utility mode), may be null

initBase - initial base (for utility mode), may be null

initSystemUtility - initial system utility, may be null

initProcessorUtility - initial processor utility, may be null

initProcessorUtilityBase - initial processor utility base, may be null

Returns:

the processed tick array