Messages in this thread | | | Date | Thu, 27 Dec 2001 17:47:23 -0800 | From | Larry McVoy <> | Subject | Re: State of the new config & build system |
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On Fri, Dec 28, 2001 at 12:41:48PM +1100, Keith Owens wrote: > On Thu, 27 Dec 2001 17:37:39 -0800, > Larry McVoy <lm@bitmover.com> wrote: > >A couple of questions: > > > >a) will 2.5 be as fast as the current system? Faster? > > At the moment kbuild 2.5 ranges from 10% faster on small builds to 100% > slower on a full kernel build.
I don't understand why it would be slower. Maybe I'm clueless but I thought you were moving more towards a single makefile system, kind of like what BSD had about 15 years ago, you went to /sys/MYMACHINE and typed make and it did the build completely in that directory. You did different configs by running a configure tool that made /sys/MYMACHINE /sys/YOURMACHINE, etc.
If this is the general approach, shouldn't this be a lot faster than the current approach? The current approach stats stuff many times. Linux is really good at making stats cheap, but nothing is as good as not doing it twice.
Am I completely misunderstanding what kbuild is all about? My apologies if so... -- --- Larry McVoy lm at bitmover.com http://www.bitmover.com/lm - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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