Building GHC for performance testing
carter.schonwald at gmail.com
Sat Mar 8 17:46:19 UTC 2014
one idea that I think Ben Gamari (or was it Reid?) pointed out is that
another (potentially valuable) metric is "how long does it take for ghc to
On Sat, Mar 8, 2014 at 5:20 AM, Simon Marlow <marlowsd at gmail.com> wrote:
> On 08/03/14 07:54, Herbert Valerio Riedel wrote:
>> Hi Simon,
>> On 2014-03-08 at 08:18:20 +0100, Simon Marlow wrote:
>>> On 06/03/14 09:50, Johan Tibell wrote:
>> * Are there any tweaks to mk/build.mk <http://build.mk> we can do to
>>>> make the build faster without compromising the results?
>>> Turn down the stage2 optimisation, and turn off the docs:
>>> GhcStage2HcOpts = -O
>> ...but doesn't that compromise the compile-time metrics collected by
>> nofib about GHC's performance?
> I think Johan is interested primarily in runtime performance, but yes if
> you care about compile time then it's better to leave GhcStage2HcOpts at
> the default.
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