Re: Slow build

[Kai Ruottu <kai dot ruottu at wippies dot com>]

Dr. David Kirkby wrote:

> Bill McEnaney wrote:
> > My Sunblade 100 takes almost 20 hours to build gcc with the machine's
> > 500 MHz UltrSPARC-II processor and its 64-bit bus.  So to build that
> > software, I usually launch a batch process with the "batch" command.
>
> I just done it in 37 minutes on a Sun T5240, using 'make -j 100'. I 
> could have probably pushed it a bit harder too, as the machine has 128 
> hardware threads. This used C, C++ and Fortran.
>
> This was for the 'gcc-4.4.1-RC-20090715' snapshot, which I'm going to 
> test, but I doubt gcc 4.4.0 would be too different.

Maybe someone could define what the "build gcc" means here... Even in a
slow 550 MHz P-III PC with Fedora 8 the GCC build for C and C++ took
only 1 h 17 minutes... Some kind of multi-stage build with several
builds for GCC?  Not just producing a GCC with the current production
GCC?  Like with a crosscompiler...