From: Laurent GUERBY <[EMAIL PROTECTED]> Date: Sun, 22 Jun 2008 10:05:26 +0200
> On Sun, 2008-06-22 at 00:45 -0700, David Miller wrote: > > > How many core does your main development machine have? > > > > 8 cores and 8 cpu threads per core on one, 64 cpus total. > > 16 cores and 8 cpu threads per core on another, 128 cpus total. > > > > It still takes an hour or so to bootstrap on these machines because > > the individual cpu threads are slow and individual expensive > > compilations become the bottleneck, especially in the libjava build. > > Did you measure how long insn-attrtab.o generation takes? > See my other email, on a 2.2 GHz barcelona it's about 5mn20s (for each > stage) and it's the main limiting factor (but I assume it's architecture > dependant). On Sparc, which is what these systems are and the cpu I target with gcc, insn-attrtab.o compilation is not expensive.
