duration of buildworld

[Slawa Olhovchenkov]

On Mon, Jul 27, 2015 at 07:58:04AM +0200, Matthias Apitz wrote:

> 
> Hello,
> 
> Yesterday I grabbed r285885 from SVN and launched a 
> 
> # make -j2 buildworld
> 
> which is still running after 19 hours on a server of 2 CPU of the type
> Intel(R) Core(TM)2 Extreme CPU X9100  @ 3.06GHz and 4 GByte memory.
> 
> Last time in January with r276659 on the same host it took only some 8
> hours, IIRC.
> 
> Is there anything wrong of what could cause this change of the build
> time?

May be swap trashing on clang compilation?