[gentoo-python] Re: [distutils-r1] Improvements to parallel builds

[Mike Gilbert]

On Thu, Dec 6, 2012 at 5:54 AM, Michał Górny <mgorny@g.o> wrote:
> A two quick improvements to parallel builds using distutils-r1.
>
>
> 1) use post-fork mode to avoid early output
>
> In other words, you no longer see 'running X for Y' before it is
> actually being run.
>

I assume you know what you are doing here; I'm not that familiar with
the multiprocessing eclass.

>
> 2) create split logs for each implementation
>
> Aside to the usual soup on stdout, the eclass writes separate build logs
> for each implementation to ${T}/build-${EPYTHON}.log.
>
> TODO: replace tee with an awesome use of multitail to display logs
> of currently running builds on split-screen.
>

The split logs could be handy for developers.

I had not considered the ugly bug reports that the multi-job build
will generate. If that becomes a major problem, we might need to
change the default to single-job, or produce some output to point
users to the split logs.