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Performance repositories on GitHub: 14 ranked by stars

14 public repositories tagged Performance are on GitHub, with 49,483 stars between them; 8 had a push in the last 30 days. Most are written in Python (4), Rust (4), C++ (2). The most starred: Nuitka/Nuitka (15,181), aimeos/aimeos (5,463), KDAB/hotspot (5,184).

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Every repository, most starred first

RepositoryWhat it isLanguageStarsForksLicenseLast pushRead
Nuitka/NuitkaNuitka is a Python compiler written in Python. It's fully compatible with Python 2.6, 2.7, 3.4-3.14. You feed it your Python app, it does a lot of clever things, and spits out an…Python15,181797AGPL-3.0Oct 10Oct 11
aimeos/aimeosIntegrated online shop based on Laravel and the Aimeos e-commerce framework for ultra-fast online shops, scalable marketplaces, complex B2B applications and #gigacommerceJavaScript5,463332MITOct 12Oct 14
KDAB/hotspotThe Linux perf GUI for performance analysis.C++5,184286Sep 9Oct 11
facebook/memlabA framework for finding JavaScript memory leaks and analyzing heap snapshotsTypeScript5,070149MITOct 12Oct 14
unikraft/unikraftA next-generation cloud native kernel designed to unlock best-in-class performance, security primitives and efficiency savings.C3,8881,517Oct 2Oct 11
JamieMason/ImageOptim-CLIMake optimisation of images part of your automated build processRust3,532127MITAug 2Oct 11
weld-project/weldHigh-performance runtime for data analytics applicationsRust3,010253BSD-3-ClauseApr 13Oct 11
fcsonline/drillDrill is an HTTP load testing application written in RustRust2,313117GPL-3.0Sep 3Oct 11
ada-url/adaWHATWG-compliant and fast URL parser written in modern C++, part of Internet Archive, Node.js, Clickhouse, Redpanda, Kong, Telegram, Adguard, Datadog and Cloudflare Workers.C++1,882147Apache-2.0Oct 10Oct 11
lorryjovens-hub/claude-code-rustRust 全量重构的 Claude Code - 性能提升 2.5x,体积减少 97% | High-performance Rust implementation of Claude Code with 2.5x faster startup and 97% smaller binaryTypeScript1,664637May 30Oct 11
usamahz/cpu-performance-engineeringA reading path for CPU performance engineering, from one instruction to production inference. Primary sources only, with a runnable benchmark for every section.Python1,15589MITOct 8Oct 15
ogxd/gxhashUnsafely fast hashing algorithmRust1,03240MITSep 28Oct 11
QAInsights/jmeter-mcp-serverJMeter Meets AI Workflows: Introducing the JMeter MCP Server!Python7429Sep 12Oct 14
charlesjones-dev/ai-agent-pluginsPlugins for git and project workflows, code audits and release checks. All 13 run in Claude Code, and 8 also run in Codex and Cursor.Python353MITOct 14Oct 14

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Read from GitHub by SpecStream between October 11, 2026 and October 15, 2026; each row shows the day its repository was read. Stars and pushes change every day, and the GitHub page is the current one. Forks and archived repositories are left out.