Re: New GC concept

[Daniele Nicolodi]

On 07/06/2021 20:03, Daniel Colascione wrote:
> On 6/7/21 10:32 AM, Matt Armstrong wrote:
>> I'm curious about the answer to one of the unanswered questions in your
>> alloc.c FAQ: What about systems without virtual memory?  Asked another
>> way: can we reasonably expect to entirely replace the current GC with
>> this new one?  Are there platforms Emacs supports today that would be
>> left behind?
> 
> We can definitely replace the existing GC with the new GC everywhere. 
> I've designed the new GC to work on systems without virtual memory 
> facilities. On these systems, we'll have to run the GC in 
> non-concurrent, non-generational mode, but that's no regression from 
> what we have today. We'll also probably want to use a smaller block size 
> on these systems to reduce fragmentation overhead.

Isn't DOS the only system in this class? (It is not a rhetorical
question: a while ago I asked which systems are officially supports and
the answer was that all systems that currently run Emacs are supported).

Does it make sense to still support DOS?

Cheers,
Dan