[gentoo-user] Limiting amount of memory a program can use.

[Dale <rdalek1967@gmail.com>]

Howdy,

As most know, I got a much faster internet and I use torrent software,
quite a lot.  I was using Ktorrent and it was OK but it was slow.  I
started using Qbittorrent and like it better in a way but it has its own
speed issues and both affect my desktop response.  I did some googling
and used top to figure out that they are using a LOT of memory for
cache.  At times, it uses well over half my memory just for cache.  It
also gets to a point where it is using swap even tho I have swappiness
set to 1, basically use swap only to prevent a crash from out of memory
problems.  We all know how slow swap use can make things.  As it is, I
reduced the number of active files which is not something I want to do. 
If I receive, I like to send as well.  After all, someone sent to me as
well.  What I would like to do is limit the amount of memory torrent
software can use.  I don't know exactly how to do that tho.  It's not
something I've ever done. 

Is this something I do on the command line or a setting is some file
somewhere?  I don't even know where to start on this.  By the way, I'm
maxed out at 32GBs of memory for this mobo.  So adding memory isn't a
option.  Is there even a mobo that has a 64GB option??? :/ 

Dale

:-)  :-)