Jeroen Demeyer on Wed, 16 Sep 2009 10:50:33 +0200


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Some benchmarks comparing gcc versions 

Some benchmarks for PARI/GP (SVN version) on my
Intel(R) Core(TM)2 Duo CPU     T5870  @ 2.00GHz
All these are compiled with -O3 -fomit-frame-pointer -march=core2. These are the average of 100 "make bench" runs: 

gcc-4.5.0 32bit: sta = 268, dyn = 264
gcc-4.3.4 64bit: sta = 189, dyn = 199
gcc-4.4.1 64bit: sta = 186, dyn = 193
g++-4.5.0 64bit: sta = 183, dyn = 188
gcc-4.5.0 64bit: sta = 179, dyn = 188

Note the 5% increase in speed from gcc-4.3.4 to gcc-4.5.0.

Cheers,
Jeroen