[Haskell-cafe] GHC 8.2.2 for WSL Ubuntu 16.04

Shao Cheng astrohavoc at gmail.com
Tue Feb 13 11:00:37 UTC 2018

Thank you! A simpler fix for WSL ghc users is upgrading to fast ring of
insider builds, the mmap overhead is much lower and ghc startup lag is
barely noticable.

On Tue, Feb 13, 2018, 6:52 PM Yitzchak Gale <gale at sefer.org> wrote:

> I have made available a build of GHC 8.2.2 with the config option:
> --disable-large-address-space
> You may find this useful if you are using Ubuntu 16.04 on Windows
> Subsystem for Linux.
> https://github.com/zoominsoftware/ghc-8.2.2-wsl
> Although Microsoft has been making gradual progress on the large
> address mapping issue[1][2], and the situation is much improved, there
> is still an extra startup latency of about 13 secs. for applications
> that pre-map a large address space as GHC does by default. This makes
> the standard GHC 8.2.2 binary unusable for compiling projects of any
> non-trivial size on WSL. You may find this GHC 8.2.2 binary more usable.
> Regards,
> Yitz
> [1] https://ghc.haskell.org/trac/ghc/ticket/13304
> [2] https://github.com/Microsoft/WSL/issues/1671
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