Thread: compiling 7.4.1 on Solaris 9
can anyone tell me what the best way to compile postgresql 7.4.1 on Solaris 9 (UltraSparcIII) is? I have latest gmake and gcc installed. I was going to use CFLAGS="-O2 -fast -mcpu=ultrasparc" based on snippets I've read about the place. Would using -O3 be an improvement? thanks
On Thu, Feb 26, 2004 at 12:46:23PM +0000, teknokrat wrote:
> I've read about the place. Would using -O3 be an improvement?
In my experience, it's not only not an improvement, it sometimes
breaks the code. That's on 8, though, not 9.
A
--
Andrew Sullivan | ajs@crankycanuck.ca
The plural of anecdote is not data.
--Roger Brinner
Andrew Sullivan wrote: > On Thu, Feb 26, 2004 at 12:46:23PM +0000, teknokrat wrote: > >>I've read about the place. Would using -O3 be an improvement? > > > In my experience, it's not only not an improvement, it sometimes > breaks the code. That's on 8, though, not 9. > > A > thanks, i remember a thread about problems with flags passed to gcc on solaris. I was wondering if there had been any resolution and if the defaults for 7.4 are considered Ok. thanks
On Tue, Mar 02, 2004 at 10:54:23AM +0000, teknokrat wrote: > thanks, i remember a thread about problems with flags passed to gcc on > solaris. I was wondering if there had been any resolution and if the > defaults for 7.4 are considered Ok. As near as I can tell, -O2 is used by default on Solaris now. Again, this is on 8, not 9. At work, we have been doing a number of tests on 7.4. The performance is such an improvement over 7.2 that the QA folks thought there must be something wrong. So I suppose the defaults are ok. A -- Andrew Sullivan | ajs@crankycanuck.ca
On Mar 2, 2004, at 5:54 AM, teknokrat wrote: > Andrew Sullivan wrote: >> On Thu, Feb 26, 2004 at 12:46:23PM +0000, teknokrat wrote: >>> I've read about the place. Would using -O3 be an improvement? >> In my experience, it's not only not an improvement, it sometimes >> breaks the code. That's on 8, though, not 9. >> A > > thanks, i remember a thread about problems with flags passed to gcc on > solaris. I was wondering if there had been any resolution and if the > defaults for 7.4 are considered Ok. > Yes. The compile flags on solaris were fixed on 7.4. Previously it wasn't using any optimization flags. -- Jeff Trout <jeff@jefftrout.com> http://www.jefftrout.com/ http://www.stuarthamm.net/
On Wed, Mar 10, 2004 at 11:07:28AM -0500, Andrew Sullivan wrote: > At work, we have been doing a number of tests on 7.4. The > performance is such an improvement over 7.2 that the QA folks thought > there must be something wrong. So I suppose the defaults are ok. I know, I know, replying to myself. I just wanted to note that we _were_ using optimisation with 7.2. 7.4 is still a lot faster. A -- Andrew Sullivan | ajs@crankycanuck.ca