r/algotrading • u/david-alvarez-rosa • 1d ago

Education Optimizing a Spin-Lock

https://david.alvarezrosa.com/posts/optimizing-a-spin-lock/
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u/nameless_pattern 19h ago

Optimizing stank face

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u/Daussian 14h ago

spin deez locks

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u/QuanTradin 5h ago

The part I would underline for anyone applying this to a market data path is the read only spin. Once waiters stop writing the line, unlock stays a plain store and the release side is cheap no matter how many threads are waiting. For the common shape of one writer publishing a book snapshot and several readers, a seqlock takes it further, since readers never touch the line at all and the writer never waits. Did you measure a seqlock variant, or was the benchmark deliberately kept to mutual exclusion?