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Oracle Solaris Dynamic Tracing Guide     Oracle Solaris 11 Information Library
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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

16.  Postmortem Tracing

17.  Performance Considerations

18.  Stability

19.  Translators

20.  Versioning


The Oracle Solaris Dynamic Tracing Guide describes how to use DTrace. It also describes the DTrace providers in detail. Most of the information present in this document is generic to all releases of the Oracle Solaris operating system.

Note -

Who Should Use This Book

This book is for any one who needs to understand the behavior of your system. DTrace allows you to explore your system to understand how it works, track down performance problems across many layers of software, or locate the cause of aberrant behavior.

DTrace allows all Oracle Solaris users to:

DTrace allows Oracle Solaris developers and administrators to:

This guide will teach you everything you need to know about using DTrace. Basic familiarity with a programming language such as C or a scripting language such as awk(1) or perl(1) will help you learn DTrace and the D programming language faster, but you need not be an expert in any of these areas.

How This Book Is Organized

The DTrace User Guide contains the following topics:

Related Books

These books and papers are recommended and related to the tasks that you need to perform with DTrace:

Access to Oracle Support

Oracle customers have access to electronic support through My Oracle Support. For information, visit or visit if you are hearing impaired.

Typographic Conventions

The following table describes the typographic conventions that are used in this book.

Table P-1 Typographic Conventions

The names of commands, files, and directories, and onscreen computer output
Edit your .login file.

Use ls -a to list all files.

machine_name% you have mail.

What you type, contrasted with onscreen computer output
machine_name% su


Placeholder: replace with a real name or value
The command to remove a file is rm filename.
Book titles, new terms, and terms to be emphasized
A cache is a copy that is stored locally.

Do not save the file.

Note: Some emphasized items appear bold online.

Shell Prompts in Command Examples

The following table shows the default UNIX system prompt and superuser prompt for shells that are included in the Oracle Solaris OS. Note that the default system prompt that is displayed in command examples varies, depending on the Oracle Solaris release.

Table P-2 Shell Prompts

Bash shell, Korn shell, and Bourne shell
Bash shell, Korn shell, and Bourne shell for superuser
C shell
C shell for superuser