Statistically Sound Performance Evaluation.

Stabilizer is a system that enables the use of the powerful statistical techniques required for sound performance evaluation on modern architectures. Stabilizer forces executions to sample the space of memory configurations by repeatedly rerandomizing layouts of code, stack, and heap objects at runtime.

• "Performance Matters" by Emery Berger @ Stange Loop Conference's YouTube.
• Playing with BOLT and Postgres @ Tomas Vondra.

Statistically rigorous benchmark runner for the web.

tachometer is a tool for running benchmarks in web browsers. It uses repeated sampling and statistics to reliably identify even tiny differences in runtime.

• Improving rendering performance with CSS content-visibility @ Read the Tea Leaves.

benchmark tooling that loves you ❤️

Mitata is a benchmark tooling library for JavaScript and C++ that offers accurate timing down to picoseconds, helpful visualizations, and features like automatic garbage collection and argument handling for benchmarks.

Benchmark Throughput Performance with running local large language models (LLMs) via ollama.

• llm-benchmark (ollama-benchmark) @ GitHub.

Browser Benchmarks

Speedometer is a browser benchmark that measures the responsiveness of Web applications. It uses demo web applications to simulate user actions such as adding to-do items.

• Speedometer 3.0: The Best Way Yet to Measure Browser Performance @ WebKit blog.

A command-line benchmarking tool.

JS performance - Dev tool.
Benchmark your JS snippets for an optimized performance.

UserBenchmark
Speed test your PC in less than a minute.

An Open, Collaborative Testing Platform For Benchmarking & Performance Analysis

Test your human brain processing capacities.