Class GuestOSMemoryUsage
java.lang.Object
com.ibm.virtualization.management.GuestOSMemoryUsage
This provides a snapshot of the Guest (Virtual Machine(VM)/Logical Partition(LPAR))
Memory usage statistics as seen by the Hypervisor Host.
The supported Operating System and Hypervisor combinations are:
- Linux and Windows on VMWare (IBM Java 8 only).
- AIX and Linux on PowerVM.
- Linux and z/OS on z/VM.
- Guest Operating System memory usage statistics are not available on Linux for PowerKVM.
- Since:
- 1.7.1
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Constructor Summary
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Method Summary
Modifier and TypeMethodDescriptionstatic GuestOSMemoryUsage
from
(CompositeData cd) Receives aCompositeData
representing aGuestOSMemoryUsage
object and attempts to return the rootGuestOSMemoryUsage
instance.long
The amount of real Memory allowed to be used by the Guest as reported by the Hypervisor in MB.long
The total Memory used by the Guest as reported by the Hypervisor in MB.long
The timestamp when the usage statistics were last sampled in microseconds.toString()
Text description of thisGuestOSMemoryUsage
object.
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Constructor Details
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GuestOSMemoryUsage
public GuestOSMemoryUsage()Creates a newGuestOSMemoryUsage
instance.
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Method Details
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getMemUsed
public long getMemUsed()The total Memory used by the Guest as reported by the Hypervisor in MB.- Returns:
- Current used Memory by the Guest in MB or -1 if info not available.
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getTimestamp
public long getTimestamp()The timestamp when the usage statistics were last sampled in microseconds.- Returns:
- The last sampling timestamp in microseconds.
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getMaxMemLimit
public long getMaxMemLimit()The amount of real Memory allowed to be used by the Guest as reported by the Hypervisor in MB.- Returns:
- Max Memory that can be used by the Guest in MB or -1 if info not available or if no limit has been set.
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from
Receives aCompositeData
representing aGuestOSMemoryUsage
object and attempts to return the rootGuestOSMemoryUsage
instance.- Parameters:
cd
- ACompositeData
that represents aGuestOSMemoryUsage
.- Returns:
- if
cd
is non-null
, returns a new instance ofGuestOSMemoryUsage
, Ifcd
isnull
, returnsnull
. - Throws:
IllegalArgumentException
- if argumentcd
does not correspond to aGuestOSMemoryUsage
with the following attributes:memUsed
(java.lang.Long
)timestamp
(java.lang.Long
)maxMemLimit
(java.lang.Long
)
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toString
Text description of thisGuestOSMemoryUsage
object.- Overrides:
toString
in classObject
- Returns:
- text description of this
GuestOSMemoryUsage
object.
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