From: sch...@uni-potsdam.de Subject: [Chicken-users] coops Date: Mon, 17 Jan 2011 03:39:45 +0100
> Hi, > > i am playing around with coops and have some problems with <list> and > <pair>. I know that are fixed in version 1.1 but i can download 1.0 > only via chicken-install. The version you install is 1.1, but it is incorrectly specified in coops.setup. I have fixed this and tagged a new version (1.2). Thanks for reporting this. > > The next point is that the performance is not as good as expected. Are > there any tricks? For example i have a method 'satisfy' with 2 > parameters. The first is specialized for some classes, the second is > always a list. > > (define-methode (satisfy (p <link-p>) (e #t)) ...) > (define-methode (satisfy (p <type-p>) (e #t)) ...) > > Is it better to specialize the second argument too or switch the order > of arguments? You have to try it out. Performance largely depends on how well the internal method-call cache can be utilized. Repeated calls of the same method will cache the result of method-lookup, otherwise the method has to be looked up (and parameter classes be matched), which is a costly process. Do you use high optimization switches? cheers, felix _______________________________________________ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
