On Fri, 2006-02-17 at 22:43 +0000, Joern RENNECKE wrote: > Has anybody done timings for gcc bootstrap / cross builds and regtests > with modern multi-core processors? I wonder what a sensible modern > configuration would be for gcc development, but the the multimedia and > games benchmarks I found on the web neither seem particularily relevant, > nor do they paint a uniform picture.
On a "AMD Athlon(tm) 64 X2 Dual Core Processor 3800+" (2.0 GHz), 2GB of RAM trunk configured with: --enable-languages=c,ada,c++,fortran,java,treelang,objc --enable-__cxa_atexit --disable-nls --enable-threads=posix --disable-multilib --enable-checking Gives the following timing at -j1: === GCCBOOT start === 2006-02-16 22:13:46 === GCCBOOT configure === 2006-02-16 22:13:46 === GCCBOOT bootstrap === 2006-02-16 22:13:51 === GCCBOOT doc === 2006-02-17 01:48:53 === GCCBOOT check === 2006-02-17 01:48:53 === GCCBOOT summary === 2006-02-17 04:15:25 === GCCBOOT install === 2006-02-17 04:15:37 === GCCBOOT done === 2006-02-17 04:20:03 So that's 6h07 total, bootstrap 3h35 and check 2h27. I assume -j2 could cut bootstrap times by about two, I'm not sure check is parallel (Ada check isn't for sure). On a Pentium III 1GHz, bootstrap is 5h55 and check 5h30 (on an older version of the tree), so p3/amd64 Removing Ada from --enable-languages will also help :). Laurent
