Speculation Interfaces - Solaris Dynamic Tracing Guide

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Document Information

1. Introduction

2. Types, Operators, and Expressions

4. D Program Structure

5. Pointers and Arrays

7. Structs and Unions

8. Type and Constant Definitions

9. Aggregations

10. Actions and Subroutines

11. Buffers and Buffering

12. Output Formatting

13. Speculative Tracing

Speculation Interfaces

Creating a Speculation

Using a Speculation

Committing a Speculation

Discarding a Speculation

Speculation Example

Speculation Options and Tuning

14. dtrace(1M) Utility

16. Options and Tunables

17. dtrace Provider

18. lockstat Provider

19. profile Provider

20. fbt Provider

21. syscall Provider

22. sdt Provider

23. sysinfo Provider

24. vminfo Provider

25. proc Provider

26. sched Provider

27. io Provider

28. mib Provider

29. fpuinfo Provider

30. pid Provider

31. plockstat Provider

32. fasttrap Provider

33. User Process Tracing

34. Statically Defined Tracing for User Applications

36. Anonymous Tracing

37. Postmortem Tracing

38. Performance Considerations

40. Translators

Speculation Interfaces

The following table describes the DTrace speculation functions:

Table 13-1 DTrace Speculation Functions

Function Name	Args	Description
`speculation`	None	Returns an identifier for a new speculative buffer
`speculate`	ID	Denotes that the remainder of the clause should be traced to the speculative buffer specified by ID
`commit`	ID	Commits the speculative buffer associated with ID
`discard`	ID	Discards the speculative buffer associated with ID

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