GCC 4.0.0

GCC 4.0.0 was released today.  The big 4-oh.  4.0.0 is advertised to 
include an improved optimizer and I am quite happy to say that on the 
UltraSPARC processor, there is a most definite improvement in 
execution performance.  Regardless the GraphicsMagick test suite still 
passes.  After this many years, you would think there is not much 
juice left to squeeze out of this turnip, but clearly they found some. 
I have not yet done similar performance testing on Intel to see if 
there is a similar boost.

Here is a test which shows typical performance improvement:

Command tested:
gm convert -verbose sample-10bit.dpx -rotate 45 crap.dpx

With GCC 3.4.2
gm convert sample-10bit.dpx -rotate 45 crap.dpx 16.61s user 0.90s system 98% cpu 17.855 total

With GCC 4.0.0
gm convert sample-10bit.dpx -rotate 45 crap.dpx 14.98s user 0.87s system 98% cpu 16.146 total

Bob
======================================
Bob Friesenhahn
[email protected], http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/


-------------------------------------------------------
SF email is sponsored by - The IT Product Guide
Read honest & candid reviews on hundreds of IT Products from real users.
Discover which products truly live up to the hype. Start reading now.
http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click