On Tue, Mar 27, 2007 at 05:50:32AM -0400, Richard Lowe wrote: > Ian Collins wrote: > >Peter Memishian wrote: > > > >>>One aspect of ON builds that continues to bug me is the lack of support > >>>for distributed builds. I have often wondered, but never had the time > >>>to investigate, whether the makefiles could be "flattened out" to enable > >>>independent directories to be built in parallel rather than > >>>sequentialy. > >>I'm confused. Right now, most of the directories under usr/src/lib and > >>usr/src/cmd are built in parallel as per the .PARALLEL directives in > >>usr/src/lib/Makefile and usr/src/cmd/Makefile. > >> > >> > >> > >I just tried running nightly on a dual core AMD 64 box with the > >.PARALLEL directives removed form > > > >usr/src/lib/Makefile and usr/src/cmd/Makefile. On this system, the > >difference was small: > > > >With .PARALLEL: > > > >time nightly ./opensolaris.sh > >real 212m14.023s > >user 325m5.196s > >sys 56m58.105s > > > >Without: > > > >time nightly ./opensolaris.sh > >real 228m14.275s > >user 325m5.731s > >sys 56m55.456s > > > >The picture may be different on a bigger machine. > > It will be largely the same, you're at least in part seeing the results of: > 4631488 "lib/Makefile is too patient: .WAITs should be reduced"
Jonathan Adams had made some progress on that bug and left behind a workspace which I pointed Sasha & Jonathan to last week - so I believe they're looking into addressing that one as part of this build-time projet. cheers, steve -- stephen lau // [EMAIL PROTECTED] | 650.786.0845 | http://whacked.net opensolaris // solaris kernel development _______________________________________________ tools-discuss mailing list tools-discuss@opensolaris.org
