Hi,
I haven't seen anyone reply with actual test results
so I thought I would do a little testing of my own.
I have an app that when launched, reads in data from a
flat file, compares it with stored data (in another
flat file) and presents it in a giant window full of
controls including tabs, scrolls and a dazzling rats
nest of additional windows. It's quite an intensive
process. All very necessary of course.
Using r4, I compiled a PPC build, a UB build and an
Intel build. I tested the launch times using identical
data on two machines (throwing away the first launch)
five times.
Here are my results:
Machine 1: 1.8 GHz PPC G5 with 512 MB DDR SDRAM on OS
10.3.9
PPC Universal Binary Intel
--- ---------------- -----
3.68333 secs 3.816667 secs not
applicable
3.68333 secs 3.83333 secs
3.65 secs 3.816667 secs
3.616667 secs 3.716667 secs
3.65 secs 4.25 secs
Machine 2: 1.83 GHz Intel Core Duo with 512 MB 667 MHz
DDR2 SDRAM on OS 10.4.8
PPC (Rosetta) Universal Binary Intel
------------- ---------------- -----
9.633333 secs 1.916667 secs
1.93333 secs
9.583333 secs 1.9 secs
1.93333 secs
9.616667 secs 1.9 secs
1.916667 secs
9.65 secs 1.9 secs 1.9
secs
9.6 secs 1.9 secs 1.9
secs
For this process, running the UB version is 5.05 times
faster than the Rosetta version (9.6166666 /
1.903334).
You should create your own tests and see the results
for yourself.
Regards,
Russ
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