Mageia forum

Hi guys!
I know that M5 uses CFS scheduler. I just was wondering are there any particular advantages over BFS, specific for M5?
Some distros are using BFS but most distros use CFS. Is it for generality or support or ...?

Thx!

Well, probably the advantage that cfq scheduler is maintained upstream and bfs is an out-of-tree patchset. And that cfq is the default scheduler.
You should keep in mind that bfs is not intended to be a general-purpose scheduler. But it's still available in our kernel packages so you can use it if you want.

FWIW, I know only three distros offhand that are BFS-enabled ...

And related to your question:
http://askubuntu.com/questions/339951/w ... ntu-kernel

Thanks dok! I thought so.

But I read somwhere that brain-fuck cpu scheduler (BFS) makes programs open/run slightly faster than
completely fair scheduler (CFS) but it's almost un-noticable form the user viewpoint. Anyway, I will stick to CFS.

Regards,,
Astor

Well you can easily switch the scheduler to BFS to see if it brings improvements for your installation.
See e.g. http://stackoverflow.com/questions/1009 ... -scheduler which links to upstream kernel documentation and explains how to switch the scheduler.
But keep in mind you have to load the module beforehand via

Code: Select all

modprobe bfs

Thomas backlund aka tmb have enabled it in he own testing kernel build install it with this.

Code: Select all

urpmi kernel-tmb-desktop-latest

https://wiki.mageia.org/en/Kernel_flavo ... _.22tmb.22