On Monday 09 February 2004 17:30, Mike A. Harris wrote: > On Mon, 9 Feb 2004, Gene C. wrote: > >It has been a long, long time since I last rebuilt the XFree86 rpms ... at > >that time it did not use buildroot. > > Wow, that predates my existance at Red Hat. ;o) Yes, and it was a real socker the first time I did it. I just did not expect building an rpm would wipe out the existing install. That tought me to look at everything real carefully before I built anything. Of course I not do all builds as non-root so it is not as dangerous. IIRC, this was the RHL 5.n era. > > >So when I saw the need to rebuild the updates/testing version of XFree86 > > for the x86_64, > > You don't. I have binary rpms I can make available if need be. > They're always available for all architectures RHEL3 is available > for. Just might need to ask if they're not pushed to rawhide or > on my ftp site. I don't push them all unless someone wants them > specifically, because my disk quota will overflow if I do it all > the time. You might consider pushing x86_64 versions out if you push a new i386 version into updates/testing or updates. That was my reason. I am trying to make sure that when FC1 x86_64 final comes out that the final plus any updates work. So far, XFree86 looks fine (except for a distribution issue of not having XFree86-Mesa-libGL for the i386 installed and that has been bugzilla'ed). > > >I was not looking forward to the amount of time it would take (I > >figured all afternoon). Much to my surprise, it was done in > >less 90 minutes (how much less I do not know). > > Takes 28 minutes to "rpmbuild --rebuild" the src.rpm on my 1.6Ghz > Athlon 64 3000+, using ccache with a primed cache. Double that > for non-primed. > > >Now I know that processors have gotten faster but the last time > >it seemed to take about 4 to 6 hours. > > It took me 9 hours to compile XFree86 4.0.1 on my AMD K6 300Mhz, > just over 3 years ago, with no special tricks such as > compilercache of course. > > >I do not know if it the faster processors (Opteron 140), code > >changes in XFree86, or local Red Hat stuff but this was a very > >pleasant surprise. > > It's a combination of factors: > > 1) Much faster CPU and memory, and with larger CPU cache - that > makes a big difference for compilation. > > 2) The rpm uses parallelmake to an extent, it isn't perfect, but > it speeds up the build a fair bit nonetheless. > > 3) My fastbuild patch trims about 5-10% off build time > > 4) A few unnecessary things are disabled that aren't needed. > > 5) I've replaced ucs2any.pl with a version written in C. It's > not a huge win, but it's a bit better. > > There's no doubt some other important things I've forgotten > about, but build speed is an amazingly important thing to me, and > I try to keep it as low as possible. Current XFree86 4.1.0 rpm > builds take me 15 minutes at home, and that's on a dual Pentium > III Xeon 1Ghz box, with 256Mb of RAM. 4.3.0 takes about 25 > minutes due to the makefiles not being as parallelized. > > If you plan on building X more than once, *definitely* get ccache > rpms off my ftp space on people.redhat.com. It will cut XFree86 > build time in half on the second build. > > If you've got 2 or more machines, check out distcc also, and > parallelize the compilation across multiple machines on your > network. ;o) > > Enjoy the speed. ;o) Well, a big THANK YOU for your efforts. -- Gene _______________________________________________ xfree86-list mailing list xfree86-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/xfree86-list IRC: #xfree86 on irc.redhat.com
