From owner-freebsd-performance@FreeBSD.ORG Wed May 21 17:28:48 2008 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 721C1106566C for ; Wed, 21 May 2008 17:28:48 +0000 (UTC) (envelope-from phoemix@harmless.hu) Received: from marvin.harmless.hu (www.ssl.harmless.hu [195.56.55.205]) by mx1.freebsd.org (Postfix) with ESMTP id 256F18FC12 for ; Wed, 21 May 2008 17:28:48 +0000 (UTC) (envelope-from phoemix@harmless.hu) Received: from pool-0461.adsl.interware.hu ([213.178.101.205] helo=mort.in.publishing.hu) by marvin.harmless.hu with esmtpa (Exim 4.69 (FreeBSD)) (envelope-from ) id 1Jys7K-000PvS-LG; Wed, 21 May 2008 19:28:46 +0200 Date: Wed, 21 May 2008 19:28:43 +0200 From: CZUCZY Gergely To: Tomasz Pajor Message-ID: <20080521192843.30ca3833@mort.in.publishing.hu> In-Reply-To: <78f2745340c587cd4f000ffac8b3e85f.nikon@kei.pl> References: <20080521155508.6ccfcfb5@twoflower.in.publishing.hu> <3abeb97e28be5b2107ea97e65ae88762.t.pajor@kei.pl> <20080521182530.23c8f787@mort.in.publishing.hu> <78f2745340c587cd4f000ffac8b3e85f.nikon@kei.pl> Organization: Harmless Digital Bt X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.1; i386-portbld-freebsd6.3) Mime-Version: 1.0 Content-Type: multipart/signed; boundary="Sig_/hpnHH.TjDehp0Y1Xj/gBITA"; protocol="application/pgp-signature"; micalg=PGP-SHA1 Sender: Czuczy Gergely Cc: freebsd-performance@freebsd.org Subject: Re: mysql performance on freebsd 7 X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 21 May 2008 17:28:48 -0000 --Sig_/hpnHH.TjDehp0Y1Xj/gBITA Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Wed, 21 May 2008 19:03:55 +0200 Tomasz Pajor wrote: > > > > May I ask whether you are using innodb or myisam? both on > > > > freebsd and Linux. And what filesystem are you using for > > > > mysql's data files? UFS, ZFS or anything else? > > >=20 > > > MySQL engine used is MEMORY, filesystem is ufs, but it's not > > > relevant. > > sure it is relevant. check my results: > > http://phoemix.harmless.hu/dbtests/ >=20 > How the filesystem is relevant when tables are in memory? first, they somehow have to be put into the memory second, for consistency (yeah, this word is missing from toysql-users' vocabulary) it has to write the data to the disk. otherwise you'd lose anything on a crash --=20 Sincerely, Gergely CZUCZY, Harmless Digital mailto: gergely.czuczy@harmless.hu Legacy software is software that works. --Sig_/hpnHH.TjDehp0Y1Xj/gBITA Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4 (FreeBSD) iD8DBQFINFvNzrC0WyuMkpsRAgu3AJ495QlJDJBFMQ0vjrSw6BDd3krGhACfR6vR 849K1AWPnxY5TuYldxD8u1o= =vlar -----END PGP SIGNATURE----- --Sig_/hpnHH.TjDehp0Y1Xj/gBITA--