With infrastructure/build/dpb we have a very convenient tool for parallel bulk building on an MP machine or across a cluster of machines. Once you've gotten used to it, you might get the idea of also using it for single-machine, UP builds. But how much overhead does it add?
These are the time(1) results of a full bulk build on i386 UP sans dpb: 3864m20.22s real 3118m42.05s user 550m22.10s system with dpb: 3946m58.64s real 3142m48.09s user 557m53.65s system (Actually, one package didn't build in the non-dpb run, but it wouldn't have contributed significantly to the overall result.) I don't know how variable these numbers are, I'm too impatient to do several runs. Taking the above figures at face value, using dpb incurs about a 2% overhead in wall clock time. I say, go ahead, just use dpb for all your bulk building needs. -- Christian "naddy" Weisgerber [EMAIL PROTECTED]
