> 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.
There's not much difference between multi-core and multi-cpu, and I've been building multi-cpu for years. At a previous job where we were very interested in build times, our rule of thumb was N+1 jobs for N cpus with local disk, or 2N+1 jobs for N cpus with nfs-mounted disk. That was for build farms working on a 12 hour C++ compile.