Folio Improvements For Linux 5.17, Large Folio Patches Posted

phoronix

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Folio Improvements For Linux 5.17, Large Folio Patches Posted

18 January 2022, 08:15 AM

Phoronix: Folio Improvements For Linux 5.17, Large Folio Patches Posted

Back in November memory folios were merged into Linux 5.16 as a fundamental change to the memory management code. Now for Linux 5.17 there are improvements for folios merged and then out likely for Linux 5.18 is introducing the notion of large folios...

Folio Improvements For Linux 5.17, Large Folio Patches Posted - Phoronix

https://www.phoronix.com/scan.php?page=news_item&px=Linux-5.17-Folios

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mangeek

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18 January 2022, 09:40 PM

I'm excited for this. This isn't my wheelhouse, but I've seen THP benefit some workloads, and always had the nagging suspicion that a ton of kernel stuff happening in 4k chunks (like swap and the page cache) may have been diluting the value of huge pages.

Is there some sort of generic in-kernel object store for 'stuff', or is that done in a more bespoke per-subsystem manner?
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