X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 3A7D811F66FE for ; Wed, 19 Apr 2006 02:31:32 -0300 (ADT) X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Score: 0.12 X-Spam-Level: X-Spam-Status: No, score=0.12 required=5 tests=[AWL=0.120] Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id z5TgQJdA7uzB for ; Wed, 19 Apr 2006 02:31:29 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from linda-4.paradise.net.nz (bm-4a.paradise.net.nz [203.96.152.183]) by postgresql.org (Postfix) with ESMTP id A9CAD11F66EA for ; Wed, 19 Apr 2006 02:31:29 -0300 (ADT) Received: from smtp-2.paradise.net.nz (tclsnelb1-src-1.paradise.net.nz [203.96.152.172]) by linda-4.paradise.net.nz (Paradise.net.nz) with ESMTP id <0IXY001U1FCA9C@linda-4.paradise.net.nz> for pgsql-performance@postgresql.org; Wed, 19 Apr 2006 17:31:22 +1200 (NZST) Received: from [192.168.1.11] (218-101-29-147.dsl.clear.net.nz [218.101.29.147]) by smtp-2.paradise.net.nz (Postfix) with ESMTP id E2B8BD2841A; Wed, 19 Apr 2006 17:31:21 +1200 (NZST) Date: Wed, 19 Apr 2006 17:31:21 +1200 From: Mark Kirkwood Subject: Re: Blocks read for index scans In-reply-to: <20060419051346.GQ49405@pervasive.com> To: "Jim C. Nasby" Cc: Terje Elde , pgsql-performance@postgresql.org Message-id: <4445CB29.1010605@paradise.net.nz> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7bit User-Agent: Thunderbird 1.5 (X11/20060417) References: <85979594-1CCA-43C5-A8F2-08685CF41ACE@pervasive.com> <443F3BB3.30404@elde.net> <20060418200641.GG49405@pervasive.com> <4445A1DF.6000705@elde.net> <20060419051346.GQ49405@pervasive.com> X-Archive-Number: 200604/419 X-Sequence-Number: 18503 Jim C. Nasby wrote: > > Yeah... not gonna happen... > > It's completely mind-boggling that FBSD doesn't track writes and reads > seperately. 'iostat' does not tell you this, but 'gstat' does - its the "geom" system monitor (a bit annoying that the standard tool is lacking in this regard...). Cheers Mark