Date: Sat, 25 Oct 2008 11:18:36 +0200 From: Danny Braniss <danny@cs.huji.ac.il> To: Jeremy Chadwick <koitsu@FreeBSD.org> Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org>, Dan Nelson <dnelson@allantgroup.com> Subject: Re: zfs & waiting on zio->io_cv Message-ID: <E1KtfI4-000BoP-Dn@cs1.cs.huji.ac.il> In-Reply-To: <20081025075543.GA55339@icarus.home.lan> References: <E1KtIbt-000PhA-HW@cs1.cs.huji.ac.il> <20081024150916.GB41283@dan.emsphone.com> <E1Ktdsd-000B7U-5M@cs1.cs.huji.ac.il> <20081025075543.GA55339@icarus.home.lan>
next in thread | previous in thread | raw e-mail | index | archive | help
[...] > > I guess this beast needs some tunning, are there any tools out there > > to monitor/tune ZFS? > > Monitor ZFS: sysctl > Tune ZFS: vi /boot/loader.conf or sysctl > > I'm not sure what you're looking for. :-) the magic wand :-) /OT there's an old saying, numbers don't lie, only _____. [you can fill the _____ with whatever, I like 'salesperson'] update: ____ should be wall-street-analysts /OT/ there are too many tunables, and I really don't want to spend all my waking hours tunning, but once in a while, I do check performance, and running top, iostat, nfsstat, etc, sometimes show a 'congestion'. the problem I encounter very often, is that what is a great solution for one, might be disastrous for another. ZFS is the new kid in town, and so far I am quiet happy - have 2 in production, and the new one will be very soon, it's being used to train/learn/play but will go online very soon, then it will be hammered by several projects, and it would-be-nice to have some tool to watch performance and be able to do some tunning, to quote tunefs: 'You can tune a file system, but you cannot tune a fish.' babbling on a rainy day, danny
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?E1KtfI4-000BoP-Dn>