Re: [avrdude-dev] Bad programming speed on AT90S8535 using AVRdude

[Brian Dean]

On Tue, Nov 18, 2003 at 04:54:08PM -0500, Brian Dean wrote:
> > 
> >   $time ./avrdude -p atmega128 -c stk200 -e -V -v -i dlogr.srec
> > 
> > latest cvs:                        21.798 s
> > with Jan-Hinnerk's patch:          22.503 s
> > same with s/1000/100/ in loop:     21.799 s
> > same with s/1000/10/:              22.213 s

...

> > Just for grins:
> > 
> >    avrdude to stk500 took 12.306 seconds.
> > 
> > For more grins:
> > 
> >    avarice to jtagice took 12.238 seconds.

I didn't try Jan-Hinnerk's patch on FreeBSD, but I tried your file
with the latest cvs and with your (Ted's) patch.  The result in both
cases is 13.02 seconds real time as reported by the shell.  AVRDUDE
reports 12.54 seconds of programming time in both cases, i.e., no
difference and seems to be on par with the STK500 and JTAGICE.  I also
verified this with the STK500 on FreeBSD and got the same result
(12.52 seconds as reported by AVRDUDE).  So, essentially, FreeBSD
shows no difference in programming time when using the parallel port
programmer vs the STK500.

In the past when I've run this test, there was a larger difference,
similar to what you are seeing with Linux.  I'm running the latest
FreeBSD 4.9-STABLE image.  I'm not aware of any parallel port
optimizations.

Hmmm ... I wonder why is FreeBSD twice as fast as Linux using the
parallel port programmer, and faster than when I previously ran this
test?  Not that I'm complaining :-)

-Brian
-- 
Brian Dean
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