Subject: Re: YDL Instaltion Woes
From: Timothy A. Seufert (tas@mindspring.com)
Date: Sat Jul 21 2001 - 14:37:28 MDT
At 6:02 PM +0200 7/21/01, Andrei Verovski wrote:
>There are absolutely NO reasons to have a large swap on the machine with
>large amount of RAM unless there are no thousands of spawned processes
>(usually on very busy servers).
Linux 2.4 VM *will* work better if you have more swap than RAM. 2x
is not an absolute rule, it's just a good default starting point.
It doesn't matter if nothing is ever swapped out; the important thing
is that the VM layer has a large amount available to allocate from.
Something about the VM layer wanting/needing to hold allocations in
circumstances where it doesn't really need to. There is no absolute
requirement, it's Just A Good Idea (as in, the system may not perform
as well as it should if you don't do it, but there shouldn't be any
crashing etc.).
This is a known design problem with 2.4 VM (not a bug), and will be
fixed when the VM people have put out enough other fires (this one is
considered to be relatively low priority because disk is cheap).
Tim Seufert
This archive was generated by hypermail 2a24 : Sat Jul 21 2001 - 13:45:40 MDT