From: | Christopher Browne <cbbrowne(at)acm(dot)org> |
---|---|
To: | pgsql-performance(at)postgresql(dot)org |
Subject: | Re: New to PostgreSQL, performance considerations |
Date: | 2006-12-12 03:27:46 |
Message-ID: | 87mz5tn68d.fsf@wolfe.cbbrowne.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-performance |
After a long battle with technology, mstone+postgres(at)mathom(dot)us (Michael Stone), an earthling, wrote:
> [1] I will say that I have never seen a realistic benchmark of
> general code where the compiler flags made a statistically
> significant difference in the runtime.
When we were initially trying out PostgreSQL on AIX, I did some
(limited, admittedly) comparisons between behaviour when compiled
using GCC 3.something, VisualAge C, and VisualAge C++. I did some
modifications of -O values; I didn't find differences amounting to
more than a percent or two between any of the combinations.
If there's to be a difference, anywhere, it ought to have figured
pretty prominently between a pretty elderly GCC version and IBM's top
of the line PowerPC compiler.
--
output = reverse("gro.mca" "@" "enworbbc")
http://cbbrowne.com/info/linuxdistributions.html
"I doubt this language difference would confuse anybody unless you
were providing instructions on the insertion of a caffeine enema."
-- On alt.coffee
From | Date | Subject | |
---|---|---|---|
Next Message | Greg Smith | 2006-12-12 06:35:04 | Re: New to PostgreSQL, performance considerations |
Previous Message | Michael Stone | 2006-12-12 01:37:09 | Re: New to PostgreSQL, performance considerations |