Deepseq proposed patch
Julian Blake Kongslie
jblake at omgwallhack.org
Fri Jun 11 12:55:05 EDT 2010
Stephen Tetley wrote:
> Don't Data.Data and traversals through gmapQ etc have a reputation for
> being particularly slow? (most newer generics libraries benchmark
> against it to show their swiftness).
That is an excellent point, and one that I hadn't really considered - on
profiling, the cases that /I/ care about spend the vast majority of
their time actually evaluating thunks rather than in gmapQr, but I don't
pretend that I'm a universal case and I'm sympathetic to those with
stronger performance needs.
-Julian Blake Kongslie
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