[MUD-Dev] How much should be offloaded to Scripting?
Kwon J. Ekstrom
justice at softhome.net
Wed Feb 18 10:41:43 New Zealand Daylight Time 2004
> From: Patrick Dughi [mailto:dughi at austin.rr.com]
>> It _could_ save some, but what sort of scripting system did you
>> build where a script needs to be parsed more than one time? In
>> fact, many scripting systems out there (for example, lua), allow
>> you to externally compile your scripts, which are then executed
>> as simple sets of hard coded instructions nice as you please. I
>> won't lie and say it's as fast as native code, but it's
>> reasonable enough that you shouldn't worry about processing
>> overhead from parsing.
> Would this performance factor change if you were programming the
> interpreter/compiler for the scripting language in Java?
into bytecode, so the JVM will run it (almost) as fast as native
execute. When pre-compiled and executed, the compile time was about
100ms with under 10ms per execution. Granted, this was an extreme
case... it was a poorly written script... but it does highlight the
(these tests were on an old worn-out K6II-450... I figure if that
thing runs it with acceptable performance then the production
machine should run it great...)
However, I say it really depends on what you're doing.
For my mud where scripts rarely change and the application is
(Scripts are compiled at first-execution, if a script is modified,
it's compiled version is released and set to null... if it's null at
runtime it gets compiled)
to handle validation/etc in a java form. These scripts generally
have a small lifetime, but there are alot of little statements
attached to handlers on awt components.
In this case, I don't bother to pre-compile them, as this creates
the overhead of keeping track of the pre-compiled scripts/etc. It
would also create serious latency during form-loads (as you have to
wait for possibly hundreds of scripts to compile).
Please Note: my mud is a research project... and I keep the
admin/playerbase small... the other however is production code for
a work project.
-- Kwon J. Ekstrom
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