From owner-freebsd-stable@FreeBSD.ORG Tue Oct 30 09:33:28 2007 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 B155B16A419 for ; Tue, 30 Oct 2007 09:33:28 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from woozle.rinet.ru (woozle.rinet.ru [195.54.192.68]) by mx1.freebsd.org (Postfix) with ESMTP id 3586713C4A5 for ; Tue, 30 Oct 2007 09:33:27 +0000 (UTC) (envelope-from marck@rinet.ru) Received: from localhost (localhost [127.0.0.1]) by woozle.rinet.ru (8.14.1/8.14.1) with ESMTP id l9U9WgDZ046165; Tue, 30 Oct 2007 12:32:42 +0300 (MSK) (envelope-from marck@rinet.ru) Date: Tue, 30 Oct 2007 12:32:42 +0300 (MSK) From: Dmitry Morozovsky To: Brooks Davis In-Reply-To: <20071029195033.GA87137@lor.one-eyed-alien.net> Message-ID: <20071030123100.K39332@woozle.rinet.ru> References: <20071029111235.E69594@woozle.rinet.ru> <20071029195033.GA87137@lor.one-eyed-alien.net> X-NCC-RegID: ru.rinet X-OpenPGP-Key-ID: 6B691B03 MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-3.0 (woozle.rinet.ru [0.0.0.0]); Tue, 30 Oct 2007 12:32:43 +0300 (MSK) Cc: stable@freebsd.org Subject: Re: rrdtool performance tuning (fwd) 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: Tue, 30 Oct 2007 09:33:28 -0000 On Mon, 29 Oct 2007, Brooks Davis wrote: BD> On Mon, Oct 29, 2007 at 11:13:09AM +0300, Dmitry Morozovsky wrote: BD> > BD> > [hmm, after thinking a bit I decided it would be more appropriate here, in BD> > stable@] BD> > BD> > Dear colleagues, BD> > BD> > any hints to tune rrdtool with ~30k rrd files (approx 2k target devices)? BD> > BD> > machine is mostly IO-bound, showing 100% disk load with 8 or sometimes even 3 BD> > mB/s, 300-400 tps (it's 2 SATA300 disks in gmirror) BD> BD> Store it on a memory file system and take periodic snapshots. The format is BD> hopeless for large numbers of updates. The ganglia port's startup scripts show BD> an example of doing this. I thought about this, but total size of these files is already more than memory, and I'm not sure md would be suitable for this. Sincerely, D.Marck [DM5020, MCK-RIPE, DM3-RIPN] [ FreeBSD committer: marck@FreeBSD.org ] ------------------------------------------------------------------------ *** Dmitry Morozovsky --- D.Marck --- Wild Woozle --- marck@rinet.ru *** ------------------------------------------------------------------------