Benchmarking GHC
Bulat Ziganshin
bulat.ziganshin at gmail.com
Fri Oct 20 06:51:19 EDT 2006
Hello Simon,
Friday, October 20, 2006, 1:38:39 PM, you wrote:
>> -O2 -funbox-strict-fields
>>
> I'm not sure that -funbox-strict-fields always improves performance,
we search for solution that improves performance ON AVERAGE
> I like
> -O2 -fliberate-case-threshold=30
> but anything other that -O2 is really just guesswork (i.e. we haven't made any
> systematic measurements). You might also like -funfolding-use-threshold=50.
it's something like super-O2 optimization, with a trade-off between
speed and program size
--
Best regards,
Bulat mailto:Bulat.Ziganshin at gmail.com
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