Profiler for your development and production Ruby rack apps.
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README.md

rack-mini-profiler

This is an opinionated fork of the wonderful MiniProfiler/rack-mini-profiler. Designed for use at Figma, but hopefully useful externally!

This fork dramatically simplifies the UI (at the cost of removing many features), adds support for recording sampling profiles using stackprof on all requests, and displaying them in an embedded copy of speedscope.

This work was heavily inspired by the work done for a similar use case at Khan Academy: gae_mini_profiler, in particular the work done by @chrisklaiber to add an embedded copy of Chrome Developer Tools.

Screenshots

Request listing Speedscope

Licence

The MIT License (MIT)

Copyright (c) 2013 Sam Saffron

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.