-----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? 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=p4" i get errors in > > lib/libc/gen/getnetgrant.c. i got the same error in both > > -march=pentium4 and mcpu=pentium4 cases > > <snip> > > > CFLAGS= -O3 -pipe -mcpu=pentium4 > > Um... have you tried not using -O3? As far as I know, -O2 and below > should work. > > I use the following: > CPUTYPE= p4 > CFLAGS= -Os -pipe > COPTFLAGS= -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 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (FreeBSD) iD8DBQFA8l6gvxSBSqT0G9ARAjbFAKDQXmjYvG/nHA1fo2cphNj78N92ZACdHugs 4DYOCQE3X1+VbSFvi68GZqg= =vaqm -----END PGP SIGNATURE-----Received on Mon Jul 12 2004 - 07:48:32 UTC
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