# rails dev logs

**URL:** <https://discuss.rubyonrails.org/t/rails-dev-logs/23392>\
**Category:** rubyonrails-talk\
**Created:** [January 17, 2008, 5:25pm UTC](https://discuss.rubyonrails.org/t/rails-dev-logs/23392 "2008-01-17T17:25:43Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Shawn\_Page](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@Shawn\_Page](https://discuss.rubyonrails.org/u/Shawn_Page)\
**Post date:** [January 17, 2008, 5:25pm UTC](https://discuss.rubyonrails.org/t/rails-dev-logs/23392/1 "2008-01-17T17:25:43Z")

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How does rails compute the timing/summary information in the dev logs?

e.g. &nbsp;&nbsp;&nbsp;&nbsp;Completed in 0.84545 (1 reqs/sec) | Rendering: 0.00029 (0%) | DB: 0.11569 (13%) | 200 OK [[http://localhost/installations/123\](http://localhost/installations/123%5C)]

-Shawn

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**Author:** ![11175](https://avatars.discourse-cdn.com/v4/letter/1/8edcca/32.png) [@11175](https://discuss.rubyonrails.org/u/11175)\
**Post date:** [January 17, 2008, 5:42pm UTC](https://discuss.rubyonrails.org/t/rails-dev-logs/23392/2 "2008-01-17T17:42:52Z")

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simple benchmarking tool

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**Author:** ![Shawn\_Page](https://avatars.discourse-cdn.com/v4/letter/s/47e85d/32.png) [@Shawn\_Page](https://discuss.rubyonrails.org/u/Shawn_Page)\
**Post date:** [January 17, 2008, 5:51pm UTC](https://discuss.rubyonrails.org/t/rails-dev-logs/23392/3 "2008-01-17T17:51:26Z")

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Any idea where in the codebase that is done?