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 CCDA79FA4AD for ; Wed, 13 Sep 2006 09:50:23 -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 36339-04 for ; Wed, 13 Sep 2006 09:50:14 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey- Received: from web35806.mail.mud.yahoo.com (web35806.mail.mud.yahoo.com [66.163.179.175]) by postgresql.org (Postfix) with SMTP id B4A0A9FA418 for ; Wed, 13 Sep 2006 09:50:15 -0300 (ADT) Received: (qmail 3323 invoked by uid 60001); 13 Sep 2006 12:50:13 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=Message-ID:Received:Date:From:Subject:To:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding; b=TLQ4CmN3xnyfUDDS+I8j9pPfT/ROJ1ecku2NxbomWyCzjdY3i3HEhQkIFlZvmoFXXF9qP7c+FYBj5qwOWX0oL3vcllTzqRhnxIvyEP19mHakuYZ4BmSXQoKnl5uCgpqHNK4VL7aLg2X68Hh2ibZzNW6LaIy/Oh9jJmsPl5HwhL4= ; Message-ID: <20060913125013.3321.qmail@web35806.mail.mud.yahoo.com> Received: from [194.29.47.173] by web35806.mail.mud.yahoo.com via HTTP; Wed, 13 Sep 2006 05:50:13 PDT Date: Wed, 13 Sep 2006 05:50:13 -0700 (PDT) From: yoav x Subject: Re: sql-bench To: pgsql-performance@postgresql.org In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=3.355 tagged_above=0 required=5 tests=DNS_FROM_RFC_ABUSE, DNS_FROM_RFC_POST, DNS_FROM_RFC_WHOIS X-Spam-Level: *** X-Archive-Number: 200609/116 X-Sequence-Number: 20802 So why are these queries so slow in PG? --- Dave Cramer wrote: > All of the tuning parameters would affect all queries > > shared buffers, wal buffers, effective cache, to name a few > > --dc-- > On 13-Sep-06, at 8:24 AM, yoav x wrote: > > > Hi > > > > I am trying to run sql-bench against PostgreSQL 8.1.4 on Linux. > > Some of the insert tests seems to be ver slow > > > > For example: select_join_in > > > > Are there any tuning parameters that can be changed to speed these > > queries? Or are these queries > > especially tuned to show MySQL's stgrenths? > > > > > > > > > > __________________________________________________ > > Do You Yahoo!? > > Tired of spam? Yahoo! Mail has the best spam protection around > > http://mail.yahoo.com > > > > ---------------------------(end of > > broadcast)--------------------------- > > TIP 9: In versions below 8.0, the planner will ignore your desire to > > choose an index scan if your joining column's datatypes do not > > match > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 1: if posting/reading through Usenet, please send an appropriate > subscribe-nomail command to majordomo@postgresql.org so that your > message can get through to the mailing list cleanly > __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com