stackprof is a fast sampling profiler for ruby code, with cpu, wallclock and object allocation samplers.

ruby-prof is a fast code profiler for Ruby. It is a C extension and therefore is many times faster than the standard Ruby profiler. It supports both flat and graph profiles. For each method, graph profiles show how long the method ran, which methods called it and which methods it called. RubyProf generate both text and html and can output it to standard out or to a file.

Memory profiling routines for Ruby 2.5+

Ohai profiles your system and emits JSON

Profiling toolkit for Rack applications with Rails integration. Client Side profiling, DB profiling and Server profiling.

Ruby applications tests profiling tools. Contains tools to analyze factories usage, integrate with Ruby profilers, profile your examples using ActiveSupport notifications (if any) and statically analyze your code with custom RuboCop cops.

Official AWS Ruby gem for Amazon CodeGuru Profiler. This gem is part of the AWS SDK for Ruby.

InSpec provides a framework for creating end-to-end infrastructure tests. You can use it for integration or even compliance testing. Create fully portable test profiles and use them in your workflow to ensure stability and security. Integrate InSpec in your change lifecycle for local testing, CI/CD, and deployment verification. Packaged distributions of Progress® Chef® products obtained from RubyGems are made available pursuant to the Progress Chef EULA at https://www.chef.io/end-user-license-agreement, unless there is an executed agreement in effect between you and Progress that covers the Progress Chef products ("Master Agreement"), in which case the Master Agreement shall govern. Source code obtained from the Chef GitHub repository is made available under Apache-2.0, a copy of which is included.

Official AWS Ruby gem for Amazon Connect Customer Profiles (Customer Profiles). This gem is part of the AWS SDK for Ruby.

Profile RSpec test suites

Official AWS Ruby gem for AWS Application Cost Profiler. This gem is part of the AWS SDK for Ruby.

Color is a Ruby library to provide basic RGB, CMYK, HSL, and other colourspace manipulation support to applications that require it. It also provides 152 named RGB colours (184 with spelling variations) that are commonly supported in HTML, SVG, and X11 applications. A technique for generating monochromatic contrasting palettes is also included. The Color library performs purely mathematical manipulation of the colours based on colour theory without reference to colour profiles (such as sRGB or Adobe RGB). For most purposes, when working with RGB and HSL colour spaces, this won't matter. Absolute colour spaces (like CIE L*a*b* and XYZ) and cannot be reliably converted to relative colour spaces (like RGB) without colour profiles. Color 1.8 adds an alpha parameter to all <tt>#css_rgba</tt> calls, fixes a bug exposed by new constant lookup semantics in Ruby 2, and ensures that <tt>Color.equivalent?</tt> can only be called on Color instances. Barring bugs introduced in this release, this (really) is the last version of color that supports Ruby 1.8, so make sure that your gem specification is set properly (to <tt>~> 1.8</tt>) if that matters for your application. This version will no longer be supported one year after the release of color 2.0.

Skylight is a smart profiler for Rails, Sinatra, and other Ruby apps.

InSpec provides a framework for creating end-to-end infrastructure tests. You can use it for integration or even compliance testing. Create fully portable test profiles and use them in your workflow to ensure stability and security. Integrate InSpec in your change lifecycle for local testing, CI/CD, and deployment verification. This has local support only. See the `inspec` gem for full support. Packaged distributions of Progress® Chef® products obtained from RubyGems are made available pursuant to the Progress Chef EULA at https://www.chef.io/end-user-license-agreement, unless there is an executed agreement in effect between you and Progress that covers the Progress Chef products ("Master Agreement"), in which case the Master Agreement shall govern. Source code obtained from the Chef GitHub repository is made available under Apache-2.0, a copy of which is included.

Cloud Profiler is a statistical, low-overhead profiler that continuously gathers CPU usage and memory-allocation information from your production applications. It attributes that information to the application's source code, helping you identify the parts of the application consuming the most resources, and otherwise illuminating the performance characteristics of the code. Note that google-cloud-profiler-v2 is a version-specific client library. For most uses, we recommend installing the main client library google-cloud-profiler instead. See the readme for more details.

The core methods of the Skylight profiler.

Authorize.Net SDK includes standard payments, recurring billing, and customer profiles

libddprof contains implementation bits used by Datadog's ddtrace gem as part of its Continuous Profiler feature.

gc debugger, logger and profiler for rgengc in ruby 2.1

Collect performance profiles for your Rails application.