this post was submitted on 06 Jan 2026

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In defence of swap: common misconceptions (chrisdown.name)

submitted 4 days ago by Novocirab@feddit.org to c/linux@programming.dev

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[–] Fizz@lemmy.nz 1 points 2 days ago

I read a kubenetes engineering post that seemed to have the some conflicting info and preformance testing to show. Specifically with point number 3

https://kubernetes.io/blog/2025/08/19/tuning-linux-swap-for-kubernetes-a-deep-dive/

The blog above shows that swapiness should be 0 on workloads sensitive to high I/o latency. Whereas the misconceptions says turning off swap to reduce I/o trashing just shifts the problem elsewhere. I dont have the technical knowledge to know who's right in this situation.