Received: from localhost (unknown [200.46.204.184]) by postgresql.org (Postfix) with ESMTP id 502AB2E003C for ; Mon, 24 Mar 2008 10:06:00 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.184]) (amavisd-maia, port 10024) with ESMTP id 66972-09 for ; Mon, 24 Mar 2008 10:05:44 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.5 Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.182]) by postgresql.org (Postfix) with ESMTP id 6DA6A2E002D for ; Mon, 24 Mar 2008 10:05:52 -0300 (ADT) Received: by wa-out-1112.google.com with SMTP id m38so3470520waf.5 for ; Mon, 24 Mar 2008 06:05:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type; bh=6I+TU/h+2wLnxDOCGu9gJjeUkasfNpHxMMdT+vSaVqk=; b=R3JChE22nBAqZipzs8chHD/nA8nKHIMEby8rtGF2990ZAJu+ZfJxeQM3+igqAWjcVw4Ffq3kJMY4cktlEh3Fcf3k5U3qmug4mNI/WSLjCkio6CR3RNzXdRQKw9P+5MpNlOjRBAmBhoUjfG0vEFwrUAHTt/RoMKGz8kKA0lf8fZ8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:to:subject:mime-version:content-type; b=SobchSuCMfooX87OaT3dZ7bMxwspdxIicWUPwKfkHx6yu+TK0dcqgkIgdKH05nwL4NgegFdnGqc0mqPW9R1USzPF8F/ojPG996IDkNLmnkVoHeFDhZ6VWYD3l/xSkcO8VY0UW9O96U2Wo8TqvWDq9oJntjHlGbjbgPW1WlX7EHI= Received: by 10.115.22.1 with SMTP id z1mr11620563wai.33.1206363951068; Mon, 24 Mar 2008 06:05:51 -0700 (PDT) Received: by 10.114.234.6 with HTTP; Mon, 24 Mar 2008 06:05:51 -0700 (PDT) Message-ID: Date: Mon, 24 Mar 2008 18:35:51 +0530 From: "petchimuthu lingam" To: pgsql-performance@postgresql.org Subject: waiting for harddisk MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_9432_1401870.1206363951061" X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0.14 tagged_above=0 required=5 tests=AWL=0.139, HTML_MESSAGE=0.001 X-Spam-Level: X-Archive-Number: 200803/444 X-Sequence-Number: 29398 ------=_Part_9432_1401870.1206363951061 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline i am using postgresql 8.1.8, Following configurations: shared_buffers = 5000 work_mem = 65536 maintenance_work_mem = 65536 effective_cache_size = 16000 random_page_cost = 0.1 The cpu is waiting percentage goes upto 50%, and query result comes later, i am using normal select query ( select * from table_name ). table has more then 6 million records. -- With Best Regards, Petchimuthulingam S ------=_Part_9432_1401870.1206363951061 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline i am using postgresql 8.1.8,

Following configurations:
           shared_buffers = 5000
            work_mem = 65536
            maintenance_work_mem = 65536
            effective_cache_size = 16000
            random_page_cost = 0.1

The cpu is waiting percentage goes upto 50%, and query result comes later,

i am using normal select query ( select * from table_name ).

table has more then 6 million records.



--
With Best Regards,
Petchimuthulingam S ------=_Part_9432_1401870.1206363951061--