# Ruby-DTrace 0.2.5 released, with USDT probe support

**URL:** <https://www.ruby-forum.com/t/ruby-dtrace-0-2-5-released-with-usdt-probe-support/140484>\
**Category:** Ruby\
**Created:** [June 14, 2008, 8:39pm UTC](https://www.ruby-forum.com/t/ruby-dtrace-0-2-5-released-with-usdt-probe-support/140484 "2008-06-14T20:39:22Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![sumwutdum](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/b77776/32.png) [@sumwutdum](https://www.ruby-forum.com/u/sumwutdum)\
**Post date:** [June 14, 2008, 8:39pm UTC](https://www.ruby-forum.com/t/ruby-dtrace-0-2-5-released-with-usdt-probe-support/140484/1 "2008-06-14T20:39:22Z")

</div>

Ruby-DTrace version 0.2.5 has been released!

== DESCRIPTION

Ruby-DTrace is Ruby bindings for DTrace, which allows you to add  
DTrace probes to your Ruby programs, and to write D-based programs  
with Ruby.

== ANNOUNCEMENT

Earlier releases of Ruby-DTrace supported the “consumer” API to  
DTrace, allowing D-based programs to be written in Ruby, receiving  
information from existing probes.

This is the first release to support creating probes in Ruby programs:  
you have full control over the probes created, their name, argument  
types and where they’re fired from in your Ruby program.

Probes can be created at any time while the Ruby program is running:  
unlike native-code USDT probes, there’s no additional build  
step. Probes are specified as Ruby code, rather than with the D  
language.

The disabled-probe overhead is low, as is-enabled probes are used to  
provide a mechanism for extra work to be done in Ruby to gather  
arguments, only when the probe is enabled.

== INCOMPATIBLE CHANGES

The consumer API has had a naming convention change, moving everything  
under the Dtrace top-level namespace. Existing scripts may need some  
changes.

== PLATFORM SUPPORT

Ruby 1.8 is supported.

Supported platforms are currently:

- Solaris 10 / OpenSolaris on Intel
- Mac OS X 10.5 on Intel

There’s no support yet for probes in 64-bit processes, nor for SPARC  
or PowerPC. The full list of ports in progress is:

- Solaris on SPARC
- Mac OS X 10.5 on PowerPC
- 64-bit processes on Intel, on Solaris and Mac OS X.

FreeBSD is currently not supported, pending DTrace userspace tracing  
support on that platform.

== INSTALLATION

Installation on the supported platforms should be a matter of  
installing the gem. You will need the developer tools for the relevant  
platform installed, and the C compiler used to build your Ruby binary.

== MORE INFORMATION

Author: Chris A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

Gem: # gem install chrisa-ruby-dtrace --source [http://gems.github.com](http://gems.github.com)

Code: [GitHub - chrisa/ruby-dtrace: Ruby bindings for DTrace](http://github.com/chrisa/ruby-dtrace/tree/master)

RDoc: [http://ruby-dtrace.rubyforge.org/](http://ruby-dtrace.rubyforge.org/)