Re: tags in the 3 lowest bits

[Kim F. Storm]

David Kastrup <address@hidden> writes:

> address@hidden (Kim F. Storm) writes:
> 
> > [BoehmGC]
> > > Dave Love has started work on this and it would be interesting to see
> > > how it works out in practice (what kind of impact it has on memory
> > > footprint and CPU usage).
> > 
> > What is the status of that effort?  Dave?
> > 
> > IMHO, this is not a user-visible change, so I think we have more
> > important things to work on.
> 
> Actually, the current tag work _has_ been inspired by user complaints,
> and it is quite user-visible.  It changes the value of
> most-positive-fixnum, and thus the maximum size of Emacs buffers.

I wasn't questioning the usefulness of the current tag work. IMO we
should move to LSB tags asap.

The objection above was related to switching to the BoehmGC -- I think
that's a much bigger effort than the proposed LSB changes, and I don't
see (know) what _additional_ benefits using BoehmGC will give us
(that's why I asked).

-- 
Kim F. Storm <address@hidden> http://www.cua.dk