Date: Thu, 31 Jan 2008 21:16:18 +0100 From: Ivan Voras <ivoras@freebsd.org> To: freebsd-performance@freebsd.org Subject: Re: postgresql-performance using sysbench Message-ID: <fntaaj$dp8$1@ger.gmane.org> In-Reply-To: <2e77fc10801310826v2fabb5g594840241784fc7@mail.gmail.com> References: <b41c75520801280701x35e628dk90841b55cac77045@mail.gmail.com> <b41c75520801281221i5fbb32f3p1e2f3be40a8dfa74@mail.gmail.com> <479E3C5E.1070405@FreeBSD.org> <b41c75520801281246q16d305ecue915e66bea6ac5ab@mail.gmail.com> <fnmrri$pi4$1@ger.gmane.org> <b41c75520801290146g4e6e2c17oe2fc432245253ba7@mail.gmail.com> <47A043FD.9090607@FreeBSD.org> <fnpjvo$n8i$1@ger.gmane.org> <47A0CD11.802@FreeBSD.org> <9bbcef730801301157n25684018y3d43bfdd0301a8dd@mail.gmail.com> <2e77fc10801310826v2fabb5g594840241784fc7@mail.gmail.com>
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[-- Attachment #1 --] Niki Denev wrote: > HZ=1000 > Time: > 239 seconds total > 122 seconds of transactions (4 per second) > What do you think? This is a very low result :) I don't know your machine or the parameters you used with postmark but even FreeBSD on two striped 7.5 kRPM drives can achieve ~~ 110 tps (so ~~ 50 for a single drive). In the same circumstances and with the right file system - reiserfs in this case - Linux can achieve close to 900 tps (170 tps with ext3). This is the kind of difference I am talking about. A change of 4 tps to 6 tps is not generally useful. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFHoiySldnAQVacBcgRAtGHAKDKx7r8o2ahpEFlYpkkpyPGnhKorgCgtq9A JJU4b0DO9R6LB5z3yEdpwCU= =JJd6 -----END PGP SIGNATURE-----
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