CpuProfile

Value Members

1. final def !=(arg0: AnyRef): Boolean

   Definition Classes

   AnyRef

2. final def !=(arg0: Any): Boolean

   Definition Classes

   Any

3. final def ##(): Int

   Definition Classes

   AnyRef → Any

4. final def ==(arg0: AnyRef): Boolean

   Definition Classes

   AnyRef

5. final def ==(arg0: Any): Boolean

   Definition Classes

   Any

6. final def asInstanceOf[T0]: T0

   Definition Classes

   Any

7. def clone(): AnyRef

   Attributes

   protected[java.lang]

   Definition Classes

   AnyRef

   Annotations

   @throws( ... )

8. final def eq(arg0: AnyRef): Boolean

   Definition Classes

   AnyRef

9. def equals(arg0: Any): Boolean

   Definition Classes

   AnyRef → Any

10. def finalize(): Unit

    Attributes

    protected[java.lang]

    Definition Classes

    AnyRef

    Annotations

    @throws( classOf[java.lang.Throwable] )

11. final def getClass(): Class[_]

    Definition Classes

    AnyRef → Any

12. def hashCode(): Int

    Definition Classes

    AnyRef → Any

13. final def isInstanceOf[T0]: Boolean

    Definition Classes

    Any

14. final def ne(arg0: AnyRef): Boolean

    Definition Classes

    AnyRef

15. final def notify(): Unit

    Definition Classes

    AnyRef

16. final def notifyAll(): Unit

    Definition Classes

    AnyRef

17. def record(howlong: Duration, frequency: Int): CpuProfile

18. def record(howlong: Duration, frequency: Int, state: State): CpuProfile

    Profile CPU usage of threads in state for howlong, sampling stacks at frequency Hz.

    Profile CPU usage of threads in state for howlong, sampling stacks at frequency Hz.

    As an example, using Nyquist's sampling theorem, we see that sampling at 100Hz will accurately represent components 50Hz or less; ie. any stack that contributes 2% or more to the total CPU time.

    Note that the maximum sampling frequency is set to 1000Hz. Anything greater than this is likely to consume considerable amounts of CPU while sampling.

    The profiler will discount its own stacks.

    TODO:

    • Should we synthesize GC frames? GC has significant runtime impact, so it seems nonfaithful to exlude them.
    • Limit stack depth?

19. def recordInThread(howlong: Duration, frequency: Int): Future[CpuProfile]

20. def recordInThread(howlong: Duration, frequency: Int, state: State): Future[CpuProfile]

    Call record in a thread with the given parameters, returning a Future representing the completion of the profile.

21. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes

    AnyRef

22. def toString(): String

    Definition Classes

    AnyRef → Any

23. final def wait(): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

24. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )

25. final def wait(arg0: Long): Unit

    Definition Classes

    AnyRef

    Annotations

    @throws( ... )