Re: [gentoo-user] Memory manager

2019-10-21 Thread Neil Bothwick
On Sun, 20 Oct 2019 18:01:01 +0100, Mick wrote: > Now, in a gentoo scenario, say a mammoth compile like Chromium, with a > large count of jobs specified for it, you could end up swapping part or > all of one or more jobs into memory, only to swap it out again in order > to process it. The compile

Re: [gentoo-user] Memory manager

2019-10-20 Thread Dale
Mick wrote: > On Sunday, 20 October 2019 16:03:42 BST Dale wrote: >> Here's the >> thing about using swap on my rig, once it does, the system gets >> extremely slow. Even switching desktops can take a minute or longer. >> Other than trying to get to what is eating up memory and killing it, the >>

Re: [gentoo-user] Memory manager

2019-10-20 Thread Mick
On Sunday, 20 October 2019 16:03:42 BST Dale wrote: > Here's the > thing about using swap on my rig, once it does, the system gets > extremely slow. Even switching desktops can take a minute or longer. > Other than trying to get to what is eating up memory and killing it, the > system is

Re: [gentoo-user] Memory manager

2019-10-20 Thread Dale
Mick wrote: > On Sunday, 20 October 2019 12:59:03 BST Wols Lists wrote: > >> Well, I do all my emerges on tmpfs, so if things like LO, firefox et al >> need maybe 10GB, I need at least that available ... (that said, 16GB ram >> could probably do it without needing swap :-) > Anecdotal evidence

Re: [gentoo-user] Memory manager

2019-10-20 Thread Mick
On Sunday, 20 October 2019 12:59:03 BST Wols Lists wrote: > Well, I do all my emerges on tmpfs, so if things like LO, firefox et al > need maybe 10GB, I need at least that available ... (that said, 16GB ram > could probably do it without needing swap :-) Anecdotal evidence suggests 16G RAM may

Re: [gentoo-user] Memory manager

2019-10-20 Thread Wols Lists
On 20/10/19 10:59, Mick wrote: > On Sunday, 20 October 2019 00:35:56 BST Wol's lists wrote: > >> The original swap algorithm NEEDED twice ram as swap. And when Linus >> ripped out all the "optimisation", the vanilla kernels only needed to >> touch swap, and if they didn't have twice ram they

Re: [gentoo-user] Memory manager

2019-10-20 Thread Mick
On Sunday, 20 October 2019 00:35:56 BST Wol's lists wrote: > The original swap algorithm NEEDED twice ram as swap. And when Linus > ripped out all the "optimisation", the vanilla kernels only needed to > touch swap, and if they didn't have twice ram they would crash. Was this also the time when

Re: [gentoo-user] Memory manager

2019-10-19 Thread Wol's lists
On 19/10/2019 16:24, Mick wrote: On Saturday, 19 October 2019 14:11:26 bstmad.scientist.at.la...@tutanota.com wrote: Do systems run different memory management when swap is on versus no swap? The answer to this question is an unqualified yes, although you do not define your meaning of

Re: [gentoo-user] Memory manager

2019-10-19 Thread Mick
On Saturday, 19 October 2019 14:11:26 BST mad.scientist.at.la...@tutanota.com wrote: > Do systems run different memory management when swap is on versus no swap? The answer to this question is an unqualified yes, although you do not define your meaning of "different memory management". The

[gentoo-user] Memory manager

2019-10-19 Thread mad.scientist.at.large
Do systems run different memory management when swap is on versus no swap?  I know that in the past it was recommended to have at least a small swap so the system used a better memory manager.  Wondering specifically if I should set up a small ram drive for swap just to get better memory