Thank you, Taco.
currently I found one way to speed up font loading:
\synchronizemathfontsfalse
\let\synchronizetext\relax
\starttypescript[serif] [myzhfont]
\definefontsynonym [Serif] [file:SimSun]
\stoptypescript
\definetypeface [myzhfont] [rm] [serif][myzhfont] [default]
\def\a{\myzhfont}
\dorecurse{10000}{{hello {\a 你好}}\par}
\bye
TeXExec | runtime: 10.172
much faster, but still far slower than \definefont.
this reminds me another possible bug in ConTeXt:
Test1:
\definetypeface[iwona][ss][sans] [iwona] [default]
\definetypeface[iwona][mm][math] [iwona] [default][text=ss]
\setupbodyfont[iwona]
\starttext
foobar
\stoptext
runtime= 6.625. There is a 5 seconds pause after loading
(c:/context/tex/texmf-context/tex/context/base/spec-xet.tex)
But I don't know what xetex is loading.
Test 2:
\definetypeface[iwona][ss][sans] [iwona] [default]
%\definetypeface[iwona][mm][math] [iwona] [default][text=ss]
\setupbodyfont[iwona]
\starttext
foobar
\stoptext
I only comment the math defination line. now
runetime = 0.969
Test 3:
move the three lines to context.rme,
\definetypeface[iwona][ss][sans] [iwona] [default]
\definetypeface[iwona][mm][math] [iwona] [default][text=ss]
\setupbodyfont[iwona]
then rebuild the format.
note we also load the math font. but one thing is clear: Hans said
unlike plain TeX and LaTeX, font tfm is not dumped into ConTeXt
format.
However, at this time we compile
\starttext
foobar
\stoptext
runtime =0.875
I don't know the reason for this problem too....
I think XeTeX load math tfms quite fast. (it should be even faster
than otf loading, but in xecontext, this is not true).
Yue Wang
On Tue, May 12, 2009 at 6:16 PM, Taco Hoekwater <t...@elvenkind.com> wrote:
>
>
> Hans Hagen wrote:
>> anyway .. i cannot comment on runtimes as xetex on my windows box runs
>> too slow (caching issue) and all examples are slow, no matter how i
>> specify fonts so i will not look into the code till that gets fixed first
>
> The example with the typescript seems logical to me: a typescript does
> much work beforehand, so I assume SimSum is loaded multiple times.
>
> I am trying the AdobeSong example as we speak, there surely seems
> something wrong there.
>
> Best wishes,
> Taco
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