I'm sorry I reply so late. Thanks, Eelco, for fixing the bug, the number seemed suspicious. Nevertheless, evaluating by package name is still quite memory-hungry - you had around 350MB, my htop reports around 12% of 4GB on evaluating "nix-env -qas --description \*" which I use to cache the names.
In far future we'll need to improve the speed (slow disc) and space of lookups by package name as this is one of the most common things users need to do. For example, some kind of caching the evaluation or preprocessing the expressions could help a lot. Vlada _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev