Re: SUMMARY: pentium optimized debian discussion
On Tue, 28 Jul 1998, Joey Hess wrote:
joey>I only did 2 benchmarks myself. I timed multiple runs of gzip -9 and gunzip
joey>on a large apache logfile, using first non-optimized and then the optimized
joey>gzip and took the quickest from each set of runs. I got 10 to 15% speedup
joey>there.
I'm recompiling a large numerical library (cln) . It takes an
hour, I'll try his test programs when its done. The author claims -O
produces better code in this case than -02 (g++) . Although the config
script identifies the CPU as i586, it apparantly doesn't pass any flags
about this to the compiler I don't know why he does this. I am using g++
from egcs and passing -mcpu=pentium -march=pentium .
John Lapeyre <lapeyre@physics.arizona.edu>
Tucson,AZ http://www.physics.arizona.edu/~lapeyre
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