A RuboCop extension that adds performance-focused static analysis to detect inefficient Ruby code patterns.
RuboCop Performance is a plugin for RuboCop that adds specialized static analysis rules focused on detecting performance issues in Ruby code. It helps developers identify inefficient patterns, such as unnecessary object allocations or slow collection operations, before they impact application speed. The extension integrates seamlessly with existing RuboCop workflows to make performance optimization part of routine code review.
Ruby developers and teams using RuboCop for code quality who want to proactively identify and fix performance bottlenecks in their codebase, particularly those targeting MRI (Matz's Ruby Interpreter).
It provides automated, consistent performance checks that catch common inefficiencies early, reducing manual review effort and helping teams maintain fast Ruby applications. As a dedicated extension, it offers more focused and version-aware performance analysis than generic linting tools.
An extension of RuboCop focused on code performance checks.
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Targets common inefficiencies like redundant string allocations and slow collection operations, with detailed examples in the cop documentation.
Cops are tailored for MRI and consider version-specific performance characteristics, making checks relevant to the primary Ruby runtime.
Works as a plugin that easily adds performance checks to existing RuboCop workflows via .rubocop.yml or command line, as shown in the usage instructions.
Each performance cop can be enabled, disabled, or configured individually using standard RuboCop configuration files, offering flexibility.
Limited to MRI runtimes and may not apply to other implementations like JRuby, as admitted in the compatibility notes.
Performance cops are highly dependent on MRI versions, requiring updates and adjustments that can break or mislead on older or newer Ruby releases.
Cannot detect runtime-specific performance issues, such as those dependent on database queries or external APIs, making it incomplete for full optimization.