Re: (heap 1024 82721 1933216)

[Daniel Colascione]

On 01/18/2014 06:07 AM, Eli Zaretskii wrote:
> > Date: Sat, 18 Jan 2014 05:51:26 -0800
> > From: Daniel Colascione <address@hidden>
> > CC: address@hidden
> >
> > On 01/18/2014 05:50 AM, Eli Zaretskii wrote:
> > > > Date: Sat, 18 Jan 2014 05:39:30 -0800
> > > > From: Daniel Colascione <address@hidden>
> > > >
> > > > On Emacs trunk, I recently got into a situation where Emacs had a vsize
> > > > of over 6GB. After killing all buffers, garbage-collect reported (heap
> > > > 1024 82721 1933216) as the most interesting part of its on its return
> > > > value. dlmalloc's free memory retention seems a bit severe here. Are we
> > > > just badly fragmenting the heap?
> > >
> > > Buffers are not allocated off the heap, as you well know.
> >
> > No, but their buffer locals might be.
>
> I find it hard to believe that buffer locals could devour gigabytes of
> memory, no matter what fragmentation did we cause.

I agree and never said they were --- I was just trying to eliminate as 
many GC roots as possible. Anyway, that's not the point: there's still 
2GB of accounted memory sitting there unused.