Fernando Simões

Popular posts: 2
Total points: 238
HN comments: 235
Rank: #11,004 personal

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Systems & Performance 2 Software Engineering 2

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Io_uring Without Readahead

2026121 points45 comments Systems & Performance details

Someone opened a PR to implement readahead in Turso. It was a throwaway implementation, but a good excuse to measure io_uring and understand more about it.

A 40ms Go garbage collector pause caused by swap

2026117 points190 comments Systems & Performance details

I’m writing this so you don’t slap your forehead like I almost did when I decided to run swap in production to absorb memory spikes.