parallelizing ghc

[Mikhail Glushenkov]

Hi,

On Tue, Jan 24, 2012 at 7:04 PM, Evan Laforge <qdunkan at gmail.com> wrote:
>> I'm also interested in a "build server" mode for ghc. I have written a
>> parallel wrapper for 'ghc --make' [1], but the speed gains are not as
>> impressive [2] as I hoped because of the duplicated work.
>
> Was the duplicated work rereading .hi files, or was there something else?

I think so - according to the GHC manual, the main speed improvement
comes from caching the information between compilations.

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