this post was submitted on 25 Feb 2025
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[–] barsoap@lemm.ee 2 points 3 hours ago

Using it as cache would reduce total capacity as cache implies coherence, and treating it as ordinary swap would mean copying to main memory before you access it which is silly when you can access it directly. That is you'd want to write a couple of lines of kernel code to use it effectively but it's nowhere close to rocket science. Nowhere near as complicated as making proper use of NUMA architectures.