[Haskell-cafe] GHC FreeBSD memory model (was: 8.4.3 release)

[Ben Gamari]

Viktor Dukhovni <ietf-dane at dukhovni.org> writes:

> On Thu, Jul 05, 2018 at 09:32:31AM -0400, Ben Gamari wrote:
>
>> We use a much different memory allocation strategy on FreeBSD which
>> (AFAIK) does not allow one to reserve address space without also
>> committing.
>
> Here's a demo of mapping in a 1TB heap on FreeBSD 11.1, on a machine
> with "just" 64GB of RAM and 160GB swap.  I would expect anon memory
> mappings to behave similarly on older systems.
>
I have opened #15348 [1] to track the issue.

Cheers,

- Ben


[1] https://ghc.haskell.org/trac/ghc/ticket/15348
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