lockf in installworld -- not a good idea

[Ruslan Ermilov]

On Fri, Sep 29, 2006 at 11:09:42AM -0600, M. Warner Losh wrote:
[...]
> I tend to agree with that basic philosophy.  From other items in the
> thread, it was clear this came up in the context of build release,
> which benefits from -j usually.  The installworld phase in that should
> be as robust as possible as well, since otherwise we have issues with
> the actual release.  Unless it is a big win (more than a few percent),
> I'd imagine the right fix is to the release target to not do a
> parallel installworld.  I know that in the build scripts that I wrote
> in 3.x days and have ported forward since then I've never done a
> parallel install, due to it rarely working reliably in that (long)
> time span...
> 
They are safe to do nowadays.  I'll do some measurements on real
SMP with the memory-based DESTDIR, and let you know the numbers.


Cheers,
-- 
Ruslan Ermilov
ru at FreeBSD.org
FreeBSD committer
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