Re: XeConTeXt bug report I: strange benchmark

[Hans Hagen <pragma@wxs.nl>]

Mojca Miklavec wrote:

> \starttext
> % test 1: takes 12 seconds
> \dorecurse{10000}{ hello {\cg 你好}}
> % test 2: takes 9 seconds
> \dorecurse{10000}{ hello {\ccg 你好}}
> \stoptext
> 
> Switching the whole typescript (\def\ccg{\zhfont} and running the
> second test) took 123 seconds eating 100% of processor time.

% test 1: takes 12 seconds
\dorecurse{10000}{ hello {\cg 你好}}

8 sec on my machine

% test 2: takes 9 seconds
% \dorecurse{10000}{ hello {\ccg 你好}}

6 sec on my machine

now, say that 10K switches represent 250 pages (some 40 per page which 
is already quite a lot for *full switches*) then we're talking of 0.01 
sec per page for this, which is kind of neglectable compared to the rest 
of the typesetting

also, mkiv takes less than 6 sec for the test and there we can use 
fallbacks and as such less switches (of the runtime, 3 sec is font 
loading which is due to the fact that for some reason my machine/vista 
does 300K page faults per big font, something that will not happen on 
more modern machines or on linux)

Hans

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