Just another data point: Dual quad Core Nehalem Xeon 2.6GHz (Hyper-threaded) running off SATA-II based SSD, OS X 10.6.8 (GCC 4.2 - Apple Version)
make -j8 gives a compile time of 3m27s make -j16 gives a compile time of 3m16s --- Mike J On Aug 30, 2012, at 9:09 AM, Bo Elmgreen wrote: > Well, I just employed the same trick on my Linux machine, and there I also > get roughly a halving of the build time ;-) > > Cheers, > Bo > > On Thu, Aug 30, 2012 at 2:38 PM, Thiago Macieira <thiago.macie...@intel.com> > wrote: > On quinta-feira, 30 de agosto de 2012 16.34.22, Konstantin Tokarev wrote: > > I guess that all of these facts apply to building on Linux. As for Mac, I > > have a feeling that OS scheduler is somewhat more fair there, and complete > > CPU utilization is achieved with lesser threads. > > My impression is that the scheduler in Linux is the best of all. > > In any case, no scheduler can make I/O go faster. If you have 4 cores and one > thread is waiting for I/O, you're squandering resources. > > -- > Thiago Macieira - thiago.macieira (AT) intel.com > Software Architect - Intel Open Source Technology Center > Intel Sweden AB - Registration Number: 556189-6027 > Knarrarnäsgatan 15, 164 40 Kista, Stockholm, Sweden > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
