X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id B4DB0D80BF for ; Sun, 28 Aug 2005 17:00:51 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 70984-10 for ; Sun, 28 Aug 2005 20:00:50 +0000 (GMT) Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by svr1.postgresql.org (Postfix) with ESMTP id 1CA10D80A3 for ; Sun, 28 Aug 2005 17:00:47 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.1/8.13.1) with ESMTP id j7SK0nVu026477; Sun, 28 Aug 2005 16:00:49 -0400 (EDT) To: Jeff Trout Cc: postgres performance Subject: Re: OSX & Performance In-reply-to: References: Comments: In-reply-to Jeff Trout message dated "Fri, 26 Aug 2005 14:58:17 -0400" Date: Sun, 28 Aug 2005 16:00:49 -0400 Message-ID: <26476.1125259249@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.006 required=5 tests=[AWL=0.006] X-Spam-Level: X-Archive-Number: 200508/486 X-Sequence-Number: 14233 Jeff Trout writes: > Tracking ti down a bit timestamp_cmp_internal (The btree was made of > a timestamp & and int) was taking a large amount of time - > specifically all the calls it makes to isnan(x). 14.1% in __isnand Hmm, can you provide a test case for other people to poke at? > Also, two things to note, one of which is quite important: On tiger > (10.4) PG compiles with NO OPTIMIZATION. Probably a template file > needs to be updated. > Panther seems to compile with -O2 though. I see -O2 when building PG (CVS tip) on a fully up-to-date 10.4.2 machine. Maybe something odd in your environment, like a preset CFLAGS setting? regards, tom lane