News for hackers. Stuff that matters.

A comment on In defence of swap: common misconceptions.

Re:In defence of swap: common misconceptions by DecoPerson on Monday June 08, 2020 @01:02PM (#23458352)
That was a lot of words to say “Swap allows us to push infrequently used pages to disk during memory usage spikes to avoid triggering the dropping of useful file pages, or worse, the OOM killer.”
[ Parent | on HN ]
Re:In defence of swap: common misconceptions by jpitz on Monday June 08, 2020 @09:29PM (#23462699)
Tfa even bolds the initial takeaway: "Swap is primarily a mechanism for equality of reclamation, not for emergency "extra memory". Swap is not what makes your application slow – entering overall memory contention is what makes your application slow."

It is a mechanism for making more page types reclaimable.

[ Parent | on HN ]
Re:In defence of swap: common misconceptions by danw1979 on Tuesday June 09, 2020 @02:21AM (#23464226)
It's an absolute brain dump of an article. I went in really interested but couldn't make it past the first few paragraphs.

Thanks for summarising...

[ Parent | on HN ]