Package io.deephaven.util.profiling

Class ThreadMXBeanThreadProfiler<BEAN_TYPE extends ThreadMXBean>

java.lang.Object

io.deephaven.util.profiling.ThreadMXBeanThreadProfiler<BEAN_TYPE>

All Implemented Interfaces:

ThreadProfiler

Direct Known Subclasses:

BaselineThreadMXBeanThreadProfiler, SunThreadMXBeanThreadProfiler

public abstract class ThreadMXBeanThreadProfiler<BEAN_TYPE extends ThreadMXBean>
extends Object
implements ThreadProfiler

An abstract generic ThreadMXBean-based ThreadProfiler implementation, with support for baseline measurements available on all JVMs.

Field Summary

Fields

Modifier and Type	Field	Description
protected final BEAN_TYPE	threadMXBean	The bean for measurements.

Fields inherited from interface io.deephaven.util.profiling.ThreadProfiler

CPU_PROFILING_ENABLED, DEFAULT, MEMORY_PROFILING_ENABLED

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ThreadMXBeanThreadProfiler()

Method Summary

Modifier and Type	Method	Description
final boolean	cpuProfilingAvailable()	Check if CPU profiling (e.g.
final long	getCurrentThreadCpuTime()	Get the approximate number of total nanoseconds the current thread has executed (in system or user mode) since CPU time measurement started.
final long	getCurrentThreadUserTime()	Get the approximate number of total nanoseconds the current thread has executed (in user mode) since CPU time measurement started.

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.deephaven.util.profiling.ThreadProfiler

getCurrentThreadAllocatedBytes, memoryProfilingAvailable

Field Details

threadMXBean

protected final BEAN_TYPE extends ThreadMXBean threadMXBean

The bean for measurements.

Constructor Details

ThreadMXBeanThreadProfiler

protected ThreadMXBeanThreadProfiler()

Method Details

cpuProfilingAvailable

public final boolean cpuProfilingAvailable()

Description copied from interface: ThreadProfiler

Check if CPU profiling (e.g. ThreadProfiler.getCurrentThreadCpuTime() and ThreadProfiler.getCurrentThreadUserTime()) is available (supported and enabled).

Specified by:

cpuProfilingAvailable in interface ThreadProfiler

Returns:

Whether CPU profiling is available.

getCurrentThreadCpuTime

public final long getCurrentThreadCpuTime()

Description copied from interface: ThreadProfiler

Get the approximate number of total nanoseconds the current thread has executed (in system or user mode) since CPU time measurement started.

Specified by:

getCurrentThreadCpuTime in interface ThreadProfiler

Returns:

The approximate number of total nanoseconds the current thread has executed, or QueryConstants.NULL_LONG if unavailable.

getCurrentThreadUserTime

public final long getCurrentThreadUserTime()

Description copied from interface: ThreadProfiler

Get the approximate number of total nanoseconds the current thread has executed (in user mode) since CPU time measurement started.

Specified by:

getCurrentThreadUserTime in interface ThreadProfiler

Returns:

The approximate number of total nanoseconds the current thread has executed in user mode, or QueryConstants.NULL_LONG if unavailable.