(moved to build-dev) On Apr 13 2012, at 02:07 , Magnus Ihse Bursie wrote:
> On 2012-04-13 03:10, Weijun Wang wrote: >> I'm trying it on my Linux x64 now. The first feeling is that my computer is >> slowed down a lot more than the old build. The 4 CPUs all show a near 100% >> usage (it's building hotspot now). The guide says I can adjust it with >> --with-num-cores, but it's only available for configure time and not make, >> right? Reducing num-cores may not be entirely effective. Linux scheduling generally favours throughput over latency. Any operationn > Let me try to address this... > > First, one of the goals of the new build system is in fact to better utilize > all available cores, to speed up build times. So when we're done, the dream > scenario is a blazingly fast build that uses all available cpu power. > > ... however, for this first push, we have not yet parallelized the build, so > any build time improvements are of a smaller scale and more the result of > more efficient makefiles. Eagerly awaiting parallelized builds. :-) Would it be too early to report ‘warning: -jN forced in submake: disabling jobserver mode.’ results? Mike
