this post was submitted on 05 Jul 2023
1712 points (99.0% liked)

Lemmy.World Announcements

29157 readers
143 users here now

This Community is intended for posts about the Lemmy.world server by the admins.

Follow us for server news 🐘

Outages 🔥

https://status.lemmy.world

For support with issues at Lemmy.world, go to the Lemmy.world Support community.

Support e-mail

Any support requests are best sent to [email protected] e-mail.

Report contact

Donations 💗

If you would like to make a donation to support the cost of running this platform, please do so at the following donation URLs.

If you can, please use / switch to Ko-Fi, it has the lowest fees for us

Ko-Fi (Donate)

Bunq (Donate)

Open Collective backers and sponsors

Patreon

Join the team

founded 2 years ago
MODERATORS
 

For those who find it interesting, enjoy!

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 6 points 1 year ago (2 children)

It’s free real estate!

If you had this much buffer memory what are the reasons to have swap space as well?

With my servers I’m paranoid having swap enabled will inadvertently slow stuff down. Perhaps there’s a reason to have it that I’m unaware of?

[–] [email protected] 7 points 1 year ago

If you had this much buffer memory what are the reasons to have swap space as well?

Many programs do stuff once during startup that they never do again, sometimes creating redundant data objects that will never get accessed in the configuration its being run in. Eventually the kernel memory manager figures out that some pages are never used but it can't just delete them. If swap is enabled it can swap them to disk instead. It frees up that RAM for something more important. It's usually minor but every few MB helps.

[–] [email protected] 5 points 1 year ago

I personally like having some swap as during low memory situations (which lemmy gets at least once a day on my small instance) everything slows down rather than getting culled by the oom killer. It's not a replacement for monitoring, but it does extend the timeframe to react to things.