Re: [gentoo-portage-dev] [PATCH v2] Default MAKEOPTS to -j(ncpus+1) when unset

[Rick \\\"Zero_Chaos\\\" Farina]

On 01/18/2015 11:58 AM, Brian Dolbec wrote:
> On Sun, 18 Jan 2015 11:38:38 +0100
> Michał Górny <mgorny@g.o> wrote:
>
>> Default MAKEOPTS job number to (number of CPUs + 1) when it is not
>> provided in the ebuild environment.
>>
>> Suggested-By: Daniel Robbins <drobbins@××××××.org>
>> ---
>>  pym/portage/package/ebuild/doebuild.py |  8 +++++++-
>>  pym/portage/util/cpuinfo.py            | 18 ++++++++++++++++++
>>  2 files changed, 25 insertions(+), 1 deletion(-)
>>  create mode 100644 pym/portage/util/cpuinfo.py
>>
>
>
> looks good, merge please
>
I realize I'm a little bit late here, but after extensive testing with
multiple different schedulers that NUMCPU provides equivalent
performance, or even outperforms NUMCPU+1.  I think that changes from 1
cpu to NUMCPU is good enough, and we don't need to test thrashing the
scheduler.

Thanks,
Zero