com.oracle.truffle.tools.profiler

Class CPUSamplerData

java.lang.Object

com.oracle.truffle.tools.profiler.CPUSamplerData

public final class CPUSamplerData
extends Object

Execution profile of a particular context.

Since:

21.3.0

See Also:

CPUSampler.getData()

Method Summary

Modifier and Type	Method and Description
com.oracle.truffle.api.TruffleContext	getContext()
LongSummaryStatistics	getSampleBias() The sample bias is a measurement of of how much time passed between requesting a stack sample and starting the stack traversal.
LongSummaryStatistics	getSampleDuration() The sample duration is a measurement of how long it took to traverse the stack when taking a sample.
long	getSampleInterval()
long	getSamples()
Map<Thread,Collection<ProfilerNode<CPUSampler.Payload>>>	getThreadData()
long	missedSamples() Returns how may samples were missed, i.e.

Methods inherited from class java.lang.Object

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

Method Detail

getContext

public com.oracle.truffle.api.TruffleContext getContext()

Returns:

The context this data applies to.

Since:

21.3.0

getThreadData

public Map<Thread,Collection<ProfilerNode<CPUSampler.Payload>>> getThreadData()

Returns:

A mapping from each thread executing in the context to the ProfilerNodes describing the profile of the execution.

Since:

21.3.0

getSamples

public long getSamples()

Returns:

how many samples were taken.

Since:

21.3.0

getSampleInterval

public long getSampleInterval()

Returns:

what was the sampling interval.

Since:

21.3.0

getSampleBias

public LongSummaryStatistics getSampleBias()

The sample bias is a measurement of of how much time passed between requesting a stack sample and starting the stack traversal. This method provies a summary of said times during the profiling run.

Returns:

A LongSummaryStatistics of the sample bias.

Since:

21.3.0

getSampleDuration

public LongSummaryStatistics getSampleDuration()

The sample duration is a measurement of how long it took to traverse the stack when taking a sample. This method provides a summary of said times during the profiling run.

Returns:

A LongSummaryStatistics of the sample duration.

Since:

21.3.0

missedSamples

public long missedSamples()

Returns how may samples were missed, i.e. how many times taking a stack sample was requested but was not provided by the runtime in a timely manner.

Returns:

The number of missed samples.

Since:

21.3.0