We are happy to announce the release of ruby-prof 0.5.1. ruby-prof is a fast, C-profiler for Ruby that can be used with Rails.

Version 0.5.1 is a bug fix and performance release.

Performance
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* Significantly reduced the number of thread lookups by caching the last executed thread.

Fixes
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* Properly escape method names in HTML reports
* Fix use of -m and --min-percent command line switches
* Default source file information to ruby_runtime#0 for c calls
* Moved rails_plugin to top level so it is more obvious
* Updated rails_plugin to write reports to the current Rails log directory
* Added additional tests

Enjoy