Re: [Sbcl-devel] RES size growing when consing garbage

[Nikodemus S. <nik...@ra...>]

On 29 April 2012 04:53, Martin Cracauer <cra...@co...> wrote:

> Nikodemus Siivola wrote on Sat, Apr 28, 2012 at 06:31:16PM +0300:
>> Below a small test-case. Run it with --dynamic-space-size 8Gb, and
>> observe how the resident memory size keeps growing. The issue is that
>> we don't release memory back to the OS after nursery collections --
>> and indeed doing that would be pretty expensive.
>>
>> Though this, as far as I can tell, is actually not a regression, Stas
>> (and someone else too, IIRC), however, has reported similar behaviour
>> as a regression since

Turns out the regression was older than that:

  https://bugs.launchpad.net/sbcl/+bug/991293

Fixed in HEAD -- the issue show by the test-case upthread still
exists, though in many cases somewhat ameliorated by this fix as well.

Cheers,

 -- nikodemus