Re: fontlock-speed

Jerry> I haven't yet been bugged enough to try tracking down the Jerry> problem. If there is anything you want me to try, let me Jerry> know. I'd be interested in relative execution profiles (21.1 v. 21.4, loading and locking a big slow file v. just starting) for the following C functions (all from extent.c, I believe): Fget_char_property Fnext_extent_change Fprevious_extent_change These are the potentially heavyweight function calls added by Matt's syntax table stuff in syntax.c, scan_lists, which is where the Lisp profiler says time is going. They get called from the function update_syntax_cache as needed. update_syntax_cache gets called once per character in the region scanned AFAICT, so the question is "how often is `as needed'?" Number of additional calls is the main thing, some estimate of time per call would be interesting too, but it's not primary. Sorry, I know nothing about profiling C yet, I guess it's time to learn. -- Institute of Policy and Planning Sciences http://turnbull.sk.tsukuba.ac.jp University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN Don't ask how you can "do" free software business; ask what your business can "do for" free software.