# Announcing ruby-prof 0.5.0 (fast profiler for ruby)

**URL:** <https://www.ruby-forum.com/t/announcing-ruby-prof-0-5-0-fast-profiler-for-ruby/108945>\
**Category:** Ruby\
**Created:** [July 9, 2007, 8:52pm UTC](https://www.ruby-forum.com/t/announcing-ruby-prof-0-5-0-fast-profiler-for-ruby/108945 "2007-07-09T20:52:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![charlieuk](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/c/c89c15/32.png) [@charlieuk](https://www.ruby-forum.com/u/charlieuk)\
**Post date:** [July 9, 2007, 8:52pm UTC](https://www.ruby-forum.com/t/announcing-ruby-prof-0-5-0-fast-profiler-for-ruby/108945/1 "2007-07-09T20:52:38Z")

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Hi everyone,

A quick note to say that Ruby Prof 0.5.0 has been released. If you  
haven’t used it, ruby-prof is a fast profiler for Ruby. Version 0.5.0  
is a major enhancement and has a lot of new functionality, including:

- Support for profiling rails applications
- Support for timing multi-threaded applications
- Improved support for recursive methods
- Support for measuring object allocations
- New printer for call tree format used by KCachegrind

It also fixes a number of bugs, which can be seen in the change log.

You can find a bit more information on my blog at:

> **[Announcing ruby-prof 0.5.0 | CFIS](https://cfis.savagexi.com/2007/07/09/announcing-ruby-prof-0-5-0/)**
>
> Make sure to grab the latest version of ruby-prof, currently 0.5.2, which includes some performance tweaks and bug fixes. A year has passed since the last release of ruby-prof. If you haven't used ruby-prof, its a superfast, open-source, profiler for...

Thanks to everyone who submitted bugs and patches - they are very much  
appreciated.

Enjoy,

Charlie S.