Squeak/linux/iPaq display speed

Kevin Fisher kgf at golden.net
Tue Feb 20 02:09:08 UTC 2001


> > I can only give you results running on 2.9a for the moment...I haven't had a 
> > chance to get 3.0 up and running yet.  So, here they are:
> > 
> > depth	msec
> > 8	4896
> > 16	5259
> > 32	6138
> 
>    It is faster!
> 

:)

>   You uses X Window System, right?  It seems that the direct
> frame-buffer acess has an advantage over using X (at least
> in forceToScreen-speed-wise).  I won't be surprized if the
> result for 16 bit depth is under 2000 (I'd say it should).

Yes, the Linux-iPaq uses a very shrunken framebuffer X-server.  In general I 
find that running in 8-bit mode is very responsive...in 16-bits and up certain 
opaque-drag movements get a little sluggish. :)


> 
> > Keep in mind that this is _still_ with an unoptimized VM...the handhelds folks 
> > haven't updated the toolchain yet to a compiler that can handle doing 
> > optimizations. :(
> 
>   This might be the case that the optimizer cannot do much
> because the operation is so memory intensive.  It could be 
> 3-10% speed up? (just a wild guess)
> 
>   Thank you very much.  This helps a lot:-)
> 
>   -- Yoshiki

No problem!





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