X-Original-To: pgsql-hackers-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 366A59FA160 for ; Thu, 15 Jun 2006 22:34:38 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 79932-04 for ; Thu, 15 Jun 2006 22:34:33 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from floppy.pyrenet.fr (news.pyrenet.fr [194.116.145.2]) by postgresql.org (Postfix) with ESMTP id B0B039FA5D2 for ; Thu, 15 Jun 2006 22:34:33 -0300 (ADT) Received: by floppy.pyrenet.fr (Postfix, from userid 106) id E6B8C3093D; Fri, 16 Jun 2006 03:34:31 +0200 (MET DST) From: "Qingqing Zhou" X-Newsgroups: pgsql.hackers Subject: Re: Test request for Stats collector performance improvement Date: Fri, 16 Jun 2006 09:34:12 +0800 Organization: Hub.Org Networking Services Lines: 31 Message-ID: References: <200601021840.k02Ieed21704@candle.pha.pa.us> <200606150405.k5F45cH11445@candle.pha.pa.us> <27745.1150381653@sss.pgh.pa.us> X-Complaints-To: usenet@news.hub.org X-Priority: 3 X-MSMail-Priority: Normal X-Newsreader: Microsoft Outlook Express 6.00.2800.1807 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1807 To: pgsql-hackers@postgresql.org X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200606/767 X-Sequence-Number: 85000 "Tom Lane" wrote > > Hm? I don't see any improvement there: > I was referening this sentence, though I am not sure why that's the expectation: > > "Bruce Momjian" wrote > If the patch worked, the first and third times will be similar, and > the second time will be high. > -- After patch -- real 0m1.275s user 0m0.097s sys 0m0.160s real 0m4.063s user 0m0.663s sys 0m0.377s real 0m1.259s user 0m0.073s sys 0m0.160s