Re: [patch] SMP alternatives

From: Linus Torvalds
Date: Wed Nov 23 2005 - 19:00:05 EST




On Wed, 23 Nov 2005, Daniel Jacobowitz wrote:
>
> Those are the wrong ways of doing this in userspace. There are right
> ways. For instance, tag the binary at link time "single-threaded".

And I mentioned exactly this. It's my third alternative.

And it doesn't work well, exactly because developers don't know if the
libraries they use are always single-threaded etc. More importantly, it
just doesn't happen that much. People do "make ; make install". Hopefully
from pretty standard sources. Having to tweak things so that a project
compiles with a magic flag on a particular distribution is simply not done
very much.

Linus
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