Date: Mon, 12 Jul 2004 12:49:12 +0300 From: Ilker OZUPAK <ilker.ozupak@emu.edu.tr> To: noackjr@alumni.rice.edu Cc: freebsd-current@freebsd.org Subject: Re: buildworld fails Message-ID: <200407121249.22161.ilker.ozupak@emu.edu.tr> In-Reply-To: <40F25644.1030001@alumni.rice.edu> References: <200407121157.01181.ilker.ozupak@emu.edu.tr> <40F25644.1030001@alumni.rice.edu>
next in thread | previous in thread | raw e-mail | index | archive | help
=2D----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hello, I had started a new build just before sending mail. (which is going on) it just get past the problem point. thanks for the reminder. for the -Os case... which benchmarks could be usefull. could anyone make a few suggestions? mysql test suite is the first one that comes to my mind. anything else?=20 On Monday 12 July 2004 12:13, you wrote: > On 07/12/04 03:57, Ilker OZUPAK wrote: > > when i try to buildworld using "CPUTYPE=3Dp4" i get errors in > > lib/libc/gen/getnetgrant.c. i got the same error in both > > -march=3Dpentium4 and mcpu=3Dpentium4 cases > > <snip> > > > CFLAGS=3D -O3 -pipe -mcpu=3Dpentium4 > > Um... have you tried not using -O3? As far as I know, -O2 and below > should work. > > I use the following: > CPUTYPE=3D p4 > CFLAGS=3D -Os -pipe > COPTFLAGS=3D -Os -pipe > > Although it is slightly broken (don't use it with > (xfree86|xorg)-libraries, for example), I find -Os gives the best > performance on my p4. In case you haven't heard of it, -Os includes all > the optimizations from -O2 that don't increase code size and > additionally optimizes for size. I think the extra performance over -O2 > is due to better cache hit rates, but that's just idle speculation. > > Perhaps I don't know something everyone else knows, but I'm surprised > more people don't benchmark -Os. > > Jon =2D----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFA8l6gvxSBSqT0G9ARAjbFAKDQXmjYvG/nHA1fo2cphNj78N92ZACdHugs 4DYOCQE3X1+VbSFvi68GZqg=3D =3Dvaqm =2D----END PGP SIGNATURE-----
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200407121249.22161.ilker.ozupak>