⚡️ Awesome Performance

A curated list of awesome performance stories.

Date	Summary w/ link
2025/08/04	How we made JSON.stringify more than twice as fast
2025/06/30	Optimizing a Math Expression Parser in Rust
2025/06/05	How we decreased GitLab repo backup times from 48 hours to 41 minutes
2025/05/01	Making PyPI's test suite 81% faster
2025/03/20	Optimizing RavenDB by 170,000% by not being silly
2025/03/19	How to speed up the Rust compiler in March 2025
2025/03/12	Python Performance: Why 'if not list' is 2x Faster Than Using len()
2025/03/09	Meta made 1-character change to free up 15k servers of capacity per year
2025/01/31	When Postgres index meets Bcrypt
2024/08/26	How We Switched from SQLite to DuckDB and Reduced Our Users’ Local Database Size by 97%
2024/05/08	Sentry on Sentry: How Metrics saved us $160K
2024/04/09	Optimizing Rust Protobuf Decoding Performance
2024/03/06	How to speed up the Rust compiler in March 2024
2024/01/18	Scaling Strava Challenge Leaderboards for Millions of Athletes
2024/01/16	Web Perf Hero: Máté Szabó
2023/08/25	How to speed up the Rust compiler in August 2023
2023/03/24	How to speed up the Rust compiler in March 2023
2022/10/27	How to speed up the Rust compiler in October 2022
2022/07/20	How to speed up the Rust compiler in July 2022
2022/04/12	How to speed up the Rust compiler in April 2022
2022/02/25	How to speed up the Rust compiler in 2022
2021/11/12	The Rust compiler has gotten faster again
2021/05/26	Scaling Strava Club Leaderboard Infrastructure for Millions of Users
2021/05/20	Extreme HTTP Performance Tuning: 1.2M API req/s on a 4 vCPU EC2 Instance
2020/08/05	How to speed up the Rust compiler some more in 2020
2020/04/24	Using Protobuf to make Jira Cloud faster
2020/04/24	How to speed up the Rust compiler in 2020
2019/12/11	How to speed up the Rust compiler one last time in 2019
2019/10/11	How to speed up the Rust compiler some more in 2019
2019/07/17	How to speed up the Rust compiler in 2019
2018/11/06	How to speed up the Rust compiler in 2018: NLL edition
2018/06/05	How to speed up the Rust compiler some more in 2018
2018/04/30	How to speed up the Rust compiler in 2018
2016/11/23	How to speed up the Rust compiler some more
2016/10/14	How to speed up the Rust compiler