[NTG-context] lmtx

Taco Hoekwater taco at elvenkind.com
Tue Apr 2 21:03:24 CEST 2019


Hi,

> On 2 Apr 2019, at 11:05, Hans Hagen <j.hagen at xs4all.nl> wrote:
> 
> - It is hard to be conclusive about performance but for instance the luatex manual processes a bit faster with lmtx as does the test suite. A gain in performance on very demanding documents is also observed by Alan and Thomas. Normally one can expect a similar performance. However, the memory footprint could be a bit smaller.

For sure the ConTeXt now loads and initialises a lot faster. With that trivial issue.tex test 
file by Arthur I get these timings (after a few ‘warmup’ runs).

MkIV (This is LuaTeX, Version 1.09.3 (TeX Live 2019/dev)):

mkiv lua stats  > stored bytecode data: 444 modules (0.445 sec), 93 tables (0.021 sec), 537 chunks (0.466 sec)
...
mkiv lua stats  > runtime: 0.888 seconds, 1 processed pages, 1 shipped pages, 1.126 pages/second
system          | total runtime: 1.391 seconds
real	0m1.646s
user	0m1.476s
sys	0m0.115s


LMTX:

mkiv lua stats  > stored bytecode data: 456 modules (0.243 sec), 93 tables (0.016 sec), 549 chunks (0.259 sec)
...
mkiv lua stats  > runtime: 0.559 seconds, 1 processed pages, 1 shipped pages, 1.789 pages/second
system          | total runtime: 0.655 seconds of 0.725 seconds
real	0m0.731s
user	0m0.601s
sys	0m0.084s


Impressive!

Taco



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