Re: [gentoo-user] VMware - Linux kernel yield() functionality is disabled.

[Alan McKinnon <alan.mckinnon@gmail.com>]

Apparently, though unproven, at 18:43 on Thursday 04 November 2010, Mark 
Knecht did opine thusly:

> Hi,
>    When starting VMware-Player I get the following message:
> 
> The host's Linux kernel yield() functionality is disabled.
> Multiprocessor virtual machines exhibit degraded performance without
> yield(). Choose 'OK' to enable the sysctl 'kernel.sched_compat_yield'
> or 'Cancel' to continue without yield().
> 
> 
>    Looking around at VMware's site they recommend changing
> /etc/sysctl.conf to enable the feature:
> 
> http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=di
> splayKC&externalId=1027987
> 
>    I can do that but I'm pretty sure that if I edit that file then
> I'll lose the edits some day when doing etc-update's. I'm wondering if
> there's a more Gentoo way to turn on a kernel feature like this so
> that it survives updates without my full attention.


Gentoo way:

Use conf-update (or etc-update if you must)
use "merge" function
tell computer what you want it to do

Ubuntu way:

"it survives updates without my full attention"
maintainer tells user what he thinks the computer should do
frustrate user, user gives up in apathy and says "Oh well..."

-- 
alan dot mckinnon at gmail dot com