jsysmon
Class CPUMonitoringData

java.lang.Object
  jsysmon.CPUMonitoringData

public class CPUMonitoringData

extends java.lang.Object

This class stores monitoring information for the whole system. CPU Usages are provided as a double value between 0.0 and 1.0. If the underlying system cannot provide some information, they are set to 0

Author:

Francois-Xavier Detourniere

Field Summary

static int	IDLE_INDEX Index of Idle information in returned results
static int	IO_INDEX Index of IOWait information in returned results
static int	IRQ_INDEX Index of IRQ information in returned results
static int	NB_INDEXES Number of indexes available.
static int	NICE_INDEX Index of Nice information in returned results
static int	SOFT_IRQ_INDEX Index of Soft IRQ information in returned results
static int	STEAL_INDEX Index of Steal information in returned results
static int	SYSTEM_INDEX Index of System information in returned results
static int	TOTAL_INDEX Index of Aggregated information in returned results The value at this index are compute on recalcTotal call
static int	USER_INDEX Index of User information in returned results

Constructor Summary

CPUMonitoringData(int nbCpus)
Initializes SystemMonitoringData for given number of CPUs

Method Summary

long	getTime(int cpuIndex, int index) Returns the CPU time for the specified type and CPU
long[]	getTimes(int cpuIndex) Returns all the Times for the given CPU The indexes of the information in the returned array are ones of *_INDEX
long	getTotalTime(int index) Returns the Total time for the specified type
long[]	getTotalTimes() Returns all the Total Times.
double	getTotalUsage(int index) Return the Total CPU Usage for the specified type
double[]	getTotalUsages() Returns all the Total Usages The indexes of the information in the returned array are ones of *_INDEX
double	getUsage(int cpuIndex, int index) Return the CPU Usage for the specified type and CPU
double[]	getUsages(int cpuIndex) Returns all the Usages for a given CPU The indexes of the information in the returned array are ones of *_INDEX
protected void	recalcTotal() Recalculate all values at TOTAL_INDEX
void	recalcUsages(CPUMonitoringData previousInfo) Recalculates the CPU Usage during time spent since provided information
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

USER_INDEX

public static final int USER_INDEX

Index of User information in returned results

See Also:

Constant Field Values

NICE_INDEX

public static final int NICE_INDEX

Index of Nice information in returned results

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Constant Field Values

SYSTEM_INDEX

public static final int SYSTEM_INDEX

Index of System information in returned results

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Constant Field Values

IDLE_INDEX

public static final int IDLE_INDEX

Index of Idle information in returned results

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Constant Field Values

IRQ_INDEX

public static final int IRQ_INDEX

Index of IRQ information in returned results

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Constant Field Values

SOFT_IRQ_INDEX

public static final int SOFT_IRQ_INDEX

Index of Soft IRQ information in returned results

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Constant Field Values

STEAL_INDEX

public static final int STEAL_INDEX

Index of Steal information in returned results

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Constant Field Values

IO_INDEX

public static final int IO_INDEX

Index of IOWait information in returned results

See Also:

Constant Field Values

TOTAL_INDEX

public static final int TOTAL_INDEX

Index of Aggregated information in returned results The value at this index are compute on recalcTotal call

See Also:

Constant Field Values

NB_INDEXES

public static final int NB_INDEXES

Number of indexes available. Keep this value up to date.

See Also:

Constant Field Values

Constructor Detail

CPUMonitoringData

public CPUMonitoringData(int nbCpus)

Initializes SystemMonitoringData for given number of CPUs

Parameters:

nbCpus -

Method Detail

getTotalTime

public long getTotalTime(int index)

Returns the Total time for the specified type

Parameters:

index - One of *_INDEX

Returns:

Corresponding Total time

getTime

public long getTime(int cpuIndex,
                    int index)

Returns the CPU time for the specified type and CPU

Parameters:

cpuIndex - CPU index to consider

index - One of *_INDEX

Returns:

Corresponding time

getTotalUsage

public double getTotalUsage(int index)

Return the Total CPU Usage for the specified type

Parameters:

index - One of *_INDEX

Returns:

Corresponding usage

getUsage

public double getUsage(int cpuIndex,
                       int index)

Return the CPU Usage for the specified type and CPU

Parameters:

cpuIndex - CPU index to consider

index - One of *_INDEX

Returns:

Corresponding usage

getTotalTimes

public long[] getTotalTimes()

Returns all the Total Times. The indexes of the information in the returned array are ones of *_INDEX

Returns:

Array containing the Total Times

getTimes

public long[] getTimes(int cpuIndex)

Returns all the Times for the given CPU The indexes of the information in the returned array are ones of *_INDEX

Parameters:

cpuIndex - CPU Index to consider

Returns:

Array containing the times for the given CPU

getTotalUsages

public double[] getTotalUsages()

Returns all the Total Usages The indexes of the information in the returned array are ones of *_INDEX

Returns:

Array containing Total Usages

getUsages

public double[] getUsages(int cpuIndex)

Returns all the Usages for a given CPU The indexes of the information in the returned array are ones of *_INDEX

Parameters:

cpuIndex - CPU Index to consider

Returns:

Array containing Usages for given CPU

recalcUsages

public void recalcUsages(CPUMonitoringData previousInfo)

Recalculates the CPU Usage during time spent since provided information

Parameters:

previousInfo -

recalcTotal

protected void recalcTotal()

Recalculate all values at TOTAL_INDEX

toString

public java.lang.String toString()