Re: [opendemo-devel] Perfomance.

[Eugene 'H. B. <hm...@ma...>]

----- Original Message -----
From: "Dr. Uwe Girlich" <Uwe...@ph...>
Subject: Re: [opendemo-devel] Perfomance.


> > I think we should collect the characters in a local variable and simply
copy
> > them over after odMalloc(). fbRead() calls fbGrow() and 2 times
mbSize(),
> > no wonder that it takes so much time.
> This is not done yet. Please perform another profiler run first.

Gotcha, done them.

I've had to redo the profiling with a special demo for this (my demo i've
run previous time was lost), the demo spans for 20 seconds and is uploaded
to cvs (1 megabyte) with a config and windows bat file, so if you set up the
linux profiling, use the config which starts the demo, they're still not
perfect, because after the demo ends server doesn't quit automatically and
library isn't unloaded, thus making stale calls to vmmain and affecting the
stats a bit.

I have attached result files, "odprofile1.txt" is the unoptimized source
re-run, and "odprofile2.txt" is with recent optimizations. Files that uwe
modified recently were downgraded to previous versions for re-profiling
unoptimized code (od_membuf.[ch] and od_xml_read.c)... This will give a nice
chart with the modifications we get.

From what I can see, the optimizations are clearly viisble, even without
profiling my fps has gone better.