Jeff wrote: > On Wed, 8 Oct 2003, Neil Conway wrote: > > > > > What CFLAGS does configure pick for gcc? From > > src/backend/template/solaris, I'd guess it's not enabling any > > optimization. Is that the case? If so, some gcc numbers with -O and -O2 > > would be useful. > > > > I can't believe I didn't think of this before! heh. > Turns out gcc was getting nothing for flags. > > I added -O2 to CFLAGS and my 60 seconds went down to 21. A rather mild > improvment huh? > > I did a few more tests and suncc still beats it out - but not by too much > now (Not enought to justify buying a license just for compiling pg) > > I'll go run the regression test suite with my gcc -O2 pg and the suncc pg. > See if they pass the test. > > If they do we should consider adding -O2 and -fast to the CFLAGS.
[ CC added for hackers.] Well, this is really embarassing. I can't imagine why we would not set at least -O on all platforms. Looking at the template files, I see these have no optimization set: darwin dgux freebsd (non-alpha) irix5 nextstep osf (gcc) qnx4 solaris sunos4 svr4 ultrix4 I thought we used to have code that did -O for any platforms that set no cflags, but I don't see that around anywhere. I recommend adding -O2, or at leaset -O to all these platforms --- we can then use platform testing to make sure they are working. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html