either me or GC sux badly (GC don't reuse free memory)

ketmar via Digitalmars-d digitalmars-d at puremagic.com
Wed Nov 12 04:33:39 PST 2014


On Wed, 12 Nov 2014 12:05:25 +0000
thedeemon via Digitalmars-d <digitalmars-d at puremagic.com> wrote:

> On Wednesday, 12 November 2014 at 11:05:11 UTC, ketmar via 
> Digitalmars-d wrote:
> >   734003200
> > address space" (yes, i'm on 32-bit system, GNU/Linux).
> >
> > the question is: am i doing something wrong here? how can i 
> > force GC to stop eating my address space and reuse what it 
> > already has?
> 
> Sure: just make the GC precise, not conservative. ;)
> With current GC implementation and array this big chances of 
> having a word on the stack that looks like a pointer to it and 
> prevents it from being collected are almost 100%. Just don't 
> store big arrays in GC heap or switch to 64 bits where the 
> problem is not that bad since address space is much larger and 
> chances of false pointers are much smaller.
for information: yes, RES is jumping high and low as it should. but
VIRT is steadily growing until there is no more address space available.

so the problem is clearly not in false pointers this time.
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