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Ubuntu 24.04 increases vm.max_map_count for smoother Linux gaming (www.gamingonlinux.com)

submitted 7 months ago by [email protected] to c/[email protected]

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[–] [email protected] 17 points 7 months ago (1 children)

OOM killer is what happens. But that can happen with the default setting as well.

[–] [email protected] 5 points 7 months ago (1 children)

no arguments there. Still, I kinda feel that raising the limit high enough to effectively turn off the limit is probably bit overboard. But, if it works, it works, but the kernel devs probably put the limit in place for a reason too.

[–] [email protected] 9 points 7 months ago (1 children)

@Malix @psycho_driver From what I can remember this limitation (which either Fedora or Nobara overturned 1yr ago) was set way before video games that take up a lot of memory were a thing.

[–] [email protected] 4 points 7 months ago

I got curious and decided to check this out. This value was set to the current one in 2009: https://github.com/torvalds/linux/commit/341c87bf346f57748230628c5ad6ee69219250e8 The reasoning makes sense, but I guess is not really relevant to our situation, and according to the newest version of the comment 2^16 is not a hard limit anymore.