JavaScript is required to for searching.
Skip Navigation Links
Exit Print View
Oracle Solaris Dynamic Tracing Guide     Oracle Solaris 11 Information Library
search filter icon
search icon

Document Information


1.  About DTrace

2.  D Programming Language

3.  Aggregations

4.  Actions and Subroutines

5.  Buffers and Buffering

6.  Output Formatting

7.  Speculative Tracing

8.  dtrace(1M) Utility

9.  Scripting

10.  Options and Tunables

11.  Providers

12.  User Process Tracing

13.  Statically Defined Tracing for User Applications

14.  Security

15.  Anonymous Tracing

Anonymous Enablings

Claiming Anonymous State

Anonymous Tracing Examples

16.  Postmortem Tracing

17.  Performance Considerations

18.  Stability

19.  Translators

20.  Versioning

Claiming Anonymous State

Once the machine has completely booted, any anonymous state may be claimed by specifying the -a option with dtrace. By default, -a claims the anonymous state, processes the existing data, and continues to run. To consume the anonymous state and then exit, add the -e option.

Once anonymous state has been consumed from the kernel, it cannot be replaced: the in-kernel buffers that contained it are reused. If you attempt to claim anonymous tracing state where none exists, dtrace will generate a message similar to the following example:

dtrace: could not enable tracing: No anonymous tracing state

If drops or errors have occurred, dtrace will generate the appropriate messages when the anonymous state is claimed. The messages for drops and errors are the same for both anonymous and non-anonymous state.