From owner-freebsd-stable@FreeBSD.ORG Thu Jan 10 08:10:57 2008 Return-Path: Delivered-To: stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B150216A418; Thu, 10 Jan 2008 08:10:57 +0000 (UTC) (envelope-from krassi@bulinfo.net) Received: from mx.bulinfo.net (mx.bulinfo.net [193.194.156.1]) by mx1.freebsd.org (Postfix) with ESMTP id 4CE7813C45A; Thu, 10 Jan 2008 08:10:57 +0000 (UTC) (envelope-from krassi@bulinfo.net) Received: from localhost (localhost [127.0.0.1]) by mx.bulinfo.net (Postfix) with ESMTP id D3B5634101; Thu, 10 Jan 2008 10:10:52 +0200 (EET) Received: from mx.bulinfo.net ([127.0.0.1]) by localhost (mx.bulinfo.net [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 62324-02; Thu, 10 Jan 2008 10:10:49 +0200 (EET) Received: from [192.168.2.188] (pythia.bulinfo.net [212.72.195.5]) by mx.bulinfo.net (Postfix) with ESMTP id 59989340FB; Thu, 10 Jan 2008 10:10:49 +0200 (EET) Message-ID: <4785D308.2080903@bulinfo.net> Date: Thu, 10 Jan 2008 10:10:48 +0200 From: Krassimir Slavchev User-Agent: Thunderbird 2.0.0.9 (X11/20071122) MIME-Version: 1.0 To: Kris Kennaway References: <476A5EE1.9000003@bulinfo.net> <476FF662.6050604@FreeBSD.org> <477BB7C0.3060603@bulinfo.net> <477C1FA3.2070904@FreeBSD.org> <477CC7DC.6060801@bulinfo.net> <47840D21.6060807@FreeBSD.org> <47847681.9040304@bulinfo.net> <478479CA.7070000@FreeBSD.org> <4784A4B0.5070403@bulinfo.net> <4784A817.2080305@FreeBSD.org> <4784C0B1.3060108@bulinfo.net> <47851797.8050200@FreeBSD.org> In-Reply-To: <47851797.8050200@FreeBSD.org> X-Enigmail-Version: 0.95.0 Content-Type: text/plain; charset=ISO-8859-2 Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at mx.bulinfo.net Cc: stable@freebsd.org Subject: Re: Performance! X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Jan 2008 08:10:57 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Kris Kennaway wrote: > Krassimir Slavchev wrote: >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> Hello, >> >> Kris Kennaway wrote: >>> Krassimir Slavchev wrote: >>>> -----BEGIN PGP SIGNED MESSAGE----- >>>> Hash: SHA1 >>>> >>>> Hello, >>>> >>>> Here are lock profiling results with select patch applied. >>> OK, you are doing I/O over TCP. Are you sure you are using TCP on both >>> systems? Linux may not be defaulting to TCP transport for local >>> queries. >>> >>> Add --pgsql-host="" to your sysbench command line to make it communicate >>> over a local domain socket, which is much more efficient. >>> >>> Kris >>> >> >> Hmm, Yes linux uses local domain sockets! >> Here are results using local domain sockets on FreeBSD too: >> #threads #tranzactions/sec >> 1 728 >> 5 2996 >> 10 5301 >> 20 3931 >> 40 2466 >> 60 1852 >> 80 1424 >> 100 1216 >> >> Just to remember: >> Linux (2.6.18) >> #threads #transactions/sec >> 1 693 >> 5 3539 >> 10 5789 >> 20 5791 >> 40 5661 >> 60 5517 >> 80 5401 >> 100 5319 >> >> I have results using Fedora 8 on the same hardware: >> Linux (2.6.23) >> #threads #transactions/sec >> 1 740 >> 5 2675 >> 10 6486 >> 20 6893 >> 40 6623 >> 60 6623 >> 80 6522 >> 100 6417 >> >> If we look at the results with up to 10 threads the performance of >> FreeBSD is very good. >> May be something can be tuned for number of threads > number of CPUs? >> >> Are you interested in lock profiling statistics with more threads than >> the number of CPUs? > > Yes, it's still performing anomalously. Glad we're making progress > though :) > > Kris > Okay, but how many threads will be more useful to test with? Best Regards -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFHhdMIxJBWvpalMpkRAowhAKCOLh6eUptQhVQlUA2O2vSS4fi6XACaA8Bx BVgsYLIpqdKZpMdaz4mj9gg= =MhN8 -----END PGP SIGNATURE-----