[Nix-dev] build-cores, load limit and boinc

[Lluís Batlle i Rossell]

On Sun, Mar 25, 2012 at 03:26:27PM +0200, Marc Weber wrote:
> Hi Lluís,
> 
> if your load is about 4, why bother? Isn't your cpu utilized well then?

Well, my use of 'boinc' is: use whatever cycles there are free in the machine.

The limit by load in nix builds make calls, brings that notion to the nix build:
"use whatever cores there are free".

There is clearly a collision in what cores should be considered free. I want to
tell the system: first, nix builds. Then, if there are free cycles, boinc.

> Of coucrse you can force by overwriting the make command line being
> used, and you can force a different target load (greater than num
> cores).

Double the number of cores would work, but could make nix spawn double the jobs
it should in some cases.

Better ideas? :)