David Kastrup wrote:
Are there any estimates regarding the relative performance?
when no callbacks are used there is no big differece; when callbacks are used to process nodes, luatex is slower than pdftex but that is to be expected; on production runs doing node manipulations at several levele you can expect luatex to be a about twice a slow as pdftex, but that's the price we pay for progress anyhow, we did quite some tests and performance is quite good given what we're dealing with; one may win back tim e by replacing time consuming macros
* A new set of registers is added, called \attribute. These are values that will be automatically attached to nodes created in their scope. More information in the manual.
Presumably useful for things like colors.
indeed
* TeX's main memory now grows dynamically, and the (de)allocation routines have been rewritten completely.
Sounds like something long overdue. I could imagine that this could be an area relevant for profiling, though.
performance seems ok; there are some optimizations possible but those are on the agenda for next year when some other bits and pieces have been cleaned up in general, you can expect luatex to have a larger memory footprint than pdftex (esp when open type fonts are used and etc); a 100 mb mem footprint is no exception for more advanced docs Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------