X-Original-To: pgsql-performance-postgresql.org@postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id A45A89FB35B; Thu, 13 Jul 2006 11:44:27 -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 03028-02; Thu, 13 Jul 2006 11:44:21 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- X-Greylist: from auto-whitelisted by SQLgrey- Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by postgresql.org (Postfix) with ESMTP id A8B839FB32E; Thu, 13 Jul 2006 11:44:22 -0300 (ADT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.13.6/8.13.6) with ESMTP id k6DEiJ7p013405; Thu, 13 Jul 2006 10:44:19 -0400 (EDT) To: Tatsuo Ishii cc: Robert.Lor@Sun.COM, pgsql-hackers@postgresql.org, pgsql-performance@postgresql.org Subject: Re: Sun Donated a Sun Fire T2000 to the PostgreSQL In-reply-to: <20060713.180234.45872055.t-ishii@sraoss.co.jp> References: <20060617.101521.95879771.t-ishii@sraoss.co.jp> <10226.1150511655@sss.pgh.pa.us> <20060617.111838.39487910.t-ishii@sraoss.co.jp> <20060713.180234.45872055.t-ishii@sraoss.co.jp> Comments: In-reply-to Tatsuo Ishii message dated "Thu, 13 Jul 2006 18:02:34 +0900" Date: Thu, 13 Jul 2006 10:44:19 -0400 Message-ID: <13404.1152801859@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200607/130 X-Sequence-Number: 19990 Tatsuo Ishii writes: >>> 18% in s_lock is definitely bad :-(. Were you able to determine which >>> LWLock(s) are accounting for the contention? >> >> Yes. We were interested in that too. Some people did addtional tests >> to determin that. I don't have the report handy now. I will report >> back next week. > Sorry for the delay. Finally I got the oprofile data. It's > huge(34MB). If you are interested, I can put somewhere. Please let me > know. Yes, please. regards, tom lane