Blog posts related to improving and understanding performance.
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A recent GitHub issue #6751 in the Caddy server repository revealed an interesting performance bottleneck when using multiple layers of reverse proxying. Here's what was discovered and how it was resolved.
The 1 Billion Row Challenge (1BRC) is a programming challenge focused on processing a large dataset of temperature measurements. If you're unfamiliar with it, you can learn more from these resources: 1 and 2.
This is a cheatsheet of optimisations done for 1brc challenges. It tries to summarise and put the optimisations in perspective.