CodSpeed

Guides, strategies, and real-world stories on continuous benchmarking and automated performance testing, written by the CodSpeed engineering team.

The page explains how Rust 1.78 fixed the alignment of 128-bit integers and how to measure the performance impact.

Python 3.13 is out and it's time to run some benchmarks to see how well it performs with the new free-threaded mode.

Track performance regressions and automatically generate flame graphs with Vitest bench and CodSpeed

Compare CodSpeed plans for open source projects, startups, and enterprises. Continuous benchmarking on dedicated bare metal runners, free for public repos.

CodSpeed runs benchmarks in CI, catches regressions in pull requests, and proposes optimizations.

CodSpeed's Privacy Policy explains how it collects, uses, and protects personal data in compliance with GDPR, UK GDPR, and California privacy laws.

CodSpeed's Terms of Service describe users' rights and obligations when using its CI performance monitoring platform and related services.

CodSpeed introduces v5, which weights every instruction by its real hardware cost and can exclude allocator time entirely. The update is designed to make benchmark results reflect how optimizations and regressions appear in production.

Aug 2026CodSpeedNews article

CodSpeed introduces an MCP Server and skills that let AI assistants access performance data, investigate regressions, and optimize code autonomously.

Mar 2026CodSpeedNews article

CodSpeed introduces CodSpeed CLI, a tool for benchmarking any executable program. It requires no code changes or specific framework.

Jan 2026CodSpeedNews article

CodSpeed introduces the Wizard, a one-click setup tool for configuring benchmarks and CI. It hooks up benchmarks, creates CI workflows, and opens pull requests automatically.

Jan 2026CodSpeedNews article