CgroupV1Metrics

All Superinterfaces:

Metrics

All Known Implementing Classes:

CgroupV1MetricsImpl, CgroupV1Subsystem
```
public interface CgroupV1Metrics
extends Metrics
```
Cgroup v1 extensions to the Metrics interface. Linux, only.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`double`	`getCpuSetMemoryPressure()` Returns the (attempts per second * 1000), if enabled, that the operating system tries to satisfy a memory request for any process in the current Isolation Group when no free memory is readily available.
`long`	`getKernelMemoryFailCount()` Returns the number of times that kernel memory requests in the Isolation Group have exceeded the kernel memory limit.
`long`	`getKernelMemoryLimit()` Returns the maximum amount of kernel physical memory, in bytes, that can be allocated in the Isolation Group.
`long`	`getKernelMemoryMaxUsage()` Returns the largest amount of kernel physical memory, in bytes, that have been allocated in the Isolation Group.
`long`	`getKernelMemoryUsage()` Returns the amount of kernel physical memory, in bytes, that is currently allocated in the current Isolation Group.
`long`	`getMemoryAndSwapFailCount()` Returns the number of times that user memory requests in the Isolation Group have exceeded the memory + swap limit.
`long`	`getMemoryAndSwapMaxUsage()` Returns the largest amount of physical memory and swap space, in bytes, that have been allocated in the Isolation Group.
`long`	`getMemoryMaxUsage()` Returns the largest amount of physical memory, in bytes, that have been allocated in the Isolation Group.
`long`	`getTcpMemoryFailCount()` Returns the number of times that networking memory requests in the Isolation Group have exceeded the kernel memory limit.
`long`	`getTcpMemoryLimit()` Returns the maximum amount of networking physical memory, in bytes, that can be allocated in the Isolation Group.
`long`	`getTcpMemoryMaxUsage()` Returns the largest amount of networking physical memory, in bytes, that have been allocated in the Isolation Group.
`Boolean`	`isCpuSetMemoryPressureEnabled()` Returns the state of the memory pressure detection support.
`Boolean`	`isMemoryOOMKillEnabled()` Returns the state of the Operating System Out of Memory termination policy.

Methods inherited from interface com.oracle.svm.core.containers.Metrics
getBlkIOServiceCount, getBlkIOServiced, getCpuNumPeriods, getCpuNumThrottled, getCpuPeriod, getCpuQuota, getCpuSetCpus, getCpuSetMems, getCpuShares, getCpuSystemUsage, getCpuThrottledTime, getCpuUsage, getCpuUserUsage, getEffectiveCpuCount, getEffectiveCpuSetCpus, getEffectiveCpuSetMems, getMemoryAndSwapLimit, getMemoryAndSwapUsage, getMemoryFailCount, getMemoryLimit, getMemorySoftLimit, getMemoryUsage, getPerCpuUsage, getProvider, getTcpMemoryUsage, systemMetrics

- Method Detail
  - getMemoryMaxUsage
```
long getMemoryMaxUsage()
```
    Returns the largest amount of physical memory, in bytes, that have been allocated in the Isolation Group.
    
    Returns:
    
    The largest amount of memory in bytes or -1 if this metric is not available. Returns -2 if this metric is not supported.
  - getKernelMemoryFailCount
```
long getKernelMemoryFailCount()
```
    Returns the number of times that kernel memory requests in the Isolation Group have exceeded the kernel memory limit.
    
    Returns:
    
    The number of exceeded requests or -1 if metric is not available.
  - getKernelMemoryLimit
```
long getKernelMemoryLimit()
```
    Returns the maximum amount of kernel physical memory, in bytes, that can be allocated in the Isolation Group.
    
    Returns:
    
    The maximum amount of memory in bytes or -1 if there is no limit set.
  - getKernelMemoryMaxUsage
```
long getKernelMemoryMaxUsage()
```
    Returns the largest amount of kernel physical memory, in bytes, that have been allocated in the Isolation Group.
    
    Returns:
    
    The largest amount of memory in bytes or -1 if this metric is not available.
  - getKernelMemoryUsage
```
long getKernelMemoryUsage()
```
    Returns the amount of kernel physical memory, in bytes, that is currently allocated in the current Isolation Group.
    
    Returns:
    
    The amount of memory in bytes allocated or -1 if this metric is not available.
  - getTcpMemoryFailCount
```
long getTcpMemoryFailCount()
```
    Returns the number of times that networking memory requests in the Isolation Group have exceeded the kernel memory limit.
    
    Returns:
    
    The number of exceeded requests or -1 if the metric is not available.
  - getTcpMemoryLimit
```
long getTcpMemoryLimit()
```
    Returns the maximum amount of networking physical memory, in bytes, that can be allocated in the Isolation Group.
    
    Returns:
    
    The maximum amount of memory in bytes or -1 if there is no limit.
  - getTcpMemoryMaxUsage
```
long getTcpMemoryMaxUsage()
```
    Returns the largest amount of networking physical memory, in bytes, that have been allocated in the Isolation Group.
    
    Returns:
    
    The largest amount of memory in bytes or -1 if this metric is not available.
  - getMemoryAndSwapFailCount
```
long getMemoryAndSwapFailCount()
```
    Returns the number of times that user memory requests in the Isolation Group have exceeded the memory + swap limit.
    
    Returns:
    
    The number of exceeded requests or -1 if the metric is not available.
  - getMemoryAndSwapMaxUsage
```
long getMemoryAndSwapMaxUsage()
```
    Returns the largest amount of physical memory and swap space, in bytes, that have been allocated in the Isolation Group.
    
    Returns:
    
    The largest amount of memory in bytes or -1 if this metric is not available.
  - isMemoryOOMKillEnabled
```
Boolean isMemoryOOMKillEnabled()
```
    Returns the state of the Operating System Out of Memory termination policy.
    
    Returns:
    
    Returns true if operating system will terminate processes in the Isolation Group that exceed the amount of available memory, otherwise false. null will be returned if this capability is not available on the current operating system.
  - getCpuSetMemoryPressure
```
double getCpuSetMemoryPressure()
```
    Returns the (attempts per second * 1000), if enabled, that the operating system tries to satisfy a memory request for any process in the current Isolation Group when no free memory is readily available. Use CgroupV1Metrics.isCpuSetMemoryPressureEnabled() to determine if this support is enabled.
    
    Returns:
    
    Memory pressure or 0 if not enabled or -1 if metric is not available.
  - isCpuSetMemoryPressureEnabled
```
Boolean isCpuSetMemoryPressureEnabled()
```
    Returns the state of the memory pressure detection support.
    
    Returns:
    
    true if support is available and enabled. false otherwise.

Interface CgroupV1Metrics

Method Summary

Methods inherited from interface com.oracle.svm.core.containers.Metrics

Method Detail

getMemoryMaxUsage

getKernelMemoryFailCount

getKernelMemoryLimit

getKernelMemoryMaxUsage

getKernelMemoryUsage

getTcpMemoryFailCount

getTcpMemoryLimit

getTcpMemoryMaxUsage

getMemoryAndSwapFailCount

getMemoryAndSwapMaxUsage

isMemoryOOMKillEnabled

getCpuSetMemoryPressure

isCpuSetMemoryPressureEnabled