Hi again, Hmmm - using jN+1 does not improve things, but ... why would it?
Cheers, Bo On Thu, Aug 30, 2012 at 1:32 PM, Bo Elmgreen <bo.elmgr...@gmail.com> wrote: > Hi Mike, > > That certainly hit the spot! With that switch the compile time with gcc is > down to 8 minutes. > > Thanks! > Bo > > > On Thu, Aug 30, 2012 at 1:17 PM, Michael Jackson > <imikejack...@gmail.com>wrote: > >> In QtCreator it uses "Make" to do the compile and by default it will only >> use a single thread Where Xcode would by default use all your cores to >> compile. You need to add a "-jN" to the "make argument" in the "Project" >> tab of QtCreator. Where "N" is the number of cores on your computer. That >> will speed things up. >> >> Mike, >> >> On Aug 30, 2012, at 7:09 AM, Bo Elmgreen wrote: >> >> > Hi! >> > >> > Thanks for the suggestions. Yes, it is true that I might be comparing >> apples to pears :-) but what if gcc actually was just as fast as clang? ;-) >> > Anyway, I am now trying to set up clang in QtCreator. Since 4.8.0 (I >> think) there are mkspecs for clang - although unsupported - but when >> compiling, QtCreator cannot find clang++ :-/ And I cannot find it on my >> system. Maybe it is because I still have Xcode 3.2.6 installed!? Hmmm - it >> seems like I need to upgrade to Xcode 4 in order to get clang++ :-/ >> > >> > Cheers, >> > Bo >> > >> > On Thu, Aug 30, 2012 at 12:48 PM, Konstantin Tokarev <annu...@yandex.ru> >> wrote: >> > >> > >> > 30.08.2012, 14:37, "Till Oliver Knoll" <till.oliver.kn...@gmail.com>: >> > > Am 30.08.2012 um 11:47 schrieb Bo Elmgreen <bo.elmgr...@gmail.com>: >> > > >> > >> ...(gcc in QtCreator and clang in Xcode) >> > > >> > > Here you go, you answered your own question! :) >> > > >> > > You were not comparing Qt Creator vs Xcode, but rather gcc vs clang! >> > > >> > >> ... are there tricks we can use to speed up the compiling? >> > > >> > > Usually the environment variable QMAKESPEC tells 'qmake' how to >> generate the Makefiles (for what compiler). >> > >> > There's no clang mkspec in Qt 4.7, so QMAKE_CXX needs to be specified >> on qmake command line. >> > >> > -- >> > Regards, >> > Konstantin >> > _______________________________________________ >> > 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 >> >> >
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