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From: | Paul F. Dietz |
Subject: | [Gcl-devel] Performance complaint from a user |
Date: | Sat, 27 Aug 2005 12:59:51 -0500 |
User-agent: | Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.11) Gecko/20050729 |
Juho Snellman benchmarked some code he wrote for a Google programming project, and found gcl wasn't very good at all: http://www.cs.helsinki.fi/u/jesnellm/blog/archive/2005-08-27b.html He told me the biggest problem was gcl wasn't able to compile defuns in non-null lexical environments: ;; compile-file didn't do well on this (let ((x ni)) (defun foo () ...) (defun bar () ...) ...) Even after he fixed that (with special variables) it was still rather more slow than sbcl or cmucl. I'd like to see where the performance bottleneck is for further tuning. Paul
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