Re: [Haskell-cafe] Is it safe to create global variables using unsafePerformIO?

You might be interested in http://hackage.haskell.org/package/global-variables for this. Cheers Johan On Jan 29, 2014 7:17 PM, "Brandon Allbery" wrote:

On Wed, Jan 29, 2014 at 1:09 PM, Ömer Sinan Ağacan wrote:

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It isn't clear that this will give an improvement in performance

Why is that? I think it's clear since I'm eliminating malloc calls. (though one may claim that malloc calls are so cheap it's not even measurable)

(1) it's not really malloc since it's being garbage collected when out of scope

(2) given that there is a lot of allocation anyway and anything allocated as ephemerally as this use case is very common and very highly optimized, it's not really worth it

-- brandon s allbery kf8nh sine nomine associates allbery.b@gmail.com ballbery@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net

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