Gentoo Archives: gentoo-user

From: "J. Roeleveld" <joost@××××××××.org>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] 32GB RAM and Swap
Date: Fri, 01 May 2020 21:49:32
Message-Id: 43D95602-B7B7-453D-AA24-42C96530CA55@antarean.org
In Reply to: [gentoo-user] 32GB RAM and Swap by Raphael MD
1 On 1 May 2020 21:50:02 CEST, Raphael MD <raphaxx@×××××.com> wrote:
2 >Hello!
3 >
4 >Could I turn my Linux swap off.
5 >I have 32 GB of RAM memory, I suppose my system don’t need swap,
6 >because
7 >I’vea lot of RAM, is this true?
8 >
9 >Thanks
10
11 This question keeps getting asked every time people go past some imaginary large figure of RAM.
12
13 First time I encountered it was somewhere in the 1990s. A friend had a machine with 64MB ram, a massive amount at that time, and disabled all swap.
14 He was surprised his machine crashed because of memory issues, until I asked what he was running. The list included several memory intensive applications.
15 He never asked that again and adds it to all his machines.
16
17 My desktop has 32GB and also has some swap. I do regularly see it used and not because of memory leaks like Dale is mentioning, although those do appear on occasion. On my desktop it's mostly because I have a lot of stuff running the whole time.
18
19 So, yes, you still need swap and always will. Unless you put about 10 times the current magical figure in a desktop. In my view, that would be 320GB for now, and in another 5 years, that would be around 640GB.
20 When you have that level of overkill in a desktop, I will not consider OOM to be likely.
21
22
23 --
24 Joost
25
26 --
27 Sent from my Android device with K-9 Mail. Please excuse my brevity.

Replies

Subject Author
Re: [gentoo-user] 32GB RAM and Swap Raphael MD <raphaxx@×××××.com>