[Haskell-cafe] Targeting old Windows versions

Andreas Klebinger klebinger.andreas at gmx.at
Wed Apr 8 08:19:23 UTC 2020

Hello devs,

GHC is planning to use the Large Address Space mode of allocation for
future releases on windows.
See https://gitlab.haskell.org/ghc/ghc/issues/12576

This is a significant optimization for the GC and well tested as we use
it on Linux already.

However it will regress memory useage on versions of windows *older*
than Windows 8.1/Sever 2012.

Please let us know if you are targeting older versions than that either
by responding to the mailing list,
commenting on the ticket or contacting me directly if you have privacy

Depending on how many people are affected by this change we might
consider measures to reduce the impact.


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