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A deep dive into Debian 13 /tmp: What's new, and what to do if you don't like it

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150 points shaunpud | 1 comments | 29 Aug 25 02:39 UTC | HN request time: 0.212s | source
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fh973 ◴[29 Aug 25 05:37 UTC] No.45060597[source]▶
Swap on servers somewhat defeats the purpose of ECC memory: your program state is now subject to complex IO path that is not end-to-end checksum protected. Also you get unpredictable performance.

So typically: swap off on servers. Do they have a server story?

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1. ars ◴[03 Sep 25 00:14 UTC] No.45110791[source]▶
If you have checksum errors reading data from disk, you have much worse issues than ram corruption. Any program you launch will probably be corrupted.

Although if you do swap on a server (and you should), the swap needs to be on a raid, otherwise your server will crash on a disk error.

Swap on a server is not meant for handling low memory issues, instead there's tons of data on a server that's almost never used, so instead swap that out and make more room for cache.