Author: Frank Phillips
Date: 12:18:00 11/12/01
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On November 11, 2001 at 18:53:00, Steve Timson wrote: >The installation was easy enough in Mandrake 8.1. The only trick was (as others >have reported) that the shell script that sets up environment variables didn't >work, and I had to add the variables by hand to my .bashrc. Also, the install >script first reported that it didn't recognize my hardware. This is because >mandrake sets HOSTTYPE to i586 and the script was expecting i386. A quick edit >of the install script to expect i586 fixed that. > >With a straight compile (just -O3) chester was about 2% faster than the gcc >version. When I turned on -ipo which allows cross file optimizations, it got to >be about 10% faster than the gcc version. This is on an athlon, no doubt >intel's own chips will probably see more benefit - but hey, I'll take the 10%.. >:) > > - Steve > > Steve Try profiling you may be pleasantly surprised. I got 30 percent in total over gcc. Some versions of -ipo would not compile with my Mandrake 8.1 and Tbird... Frank # For intel compiler, compile with # CFLAGS = -O2 -prof_gen # then run the program to generate statistics then # compile with # CFLAGS = -O2 -prof_use #
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