From owner-freebsd-fs@FreeBSD.ORG Sun Oct 6 19:31:34 2013 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 78923D9A for ; Sun, 6 Oct 2013 19:31:34 +0000 (UTC) (envelope-from zbeeble@gmail.com) Received: from mail-vb0-x22e.google.com (mail-vb0-x22e.google.com [IPv6:2607:f8b0:400c:c02::22e]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 388012BC9 for ; Sun, 6 Oct 2013 19:31:34 +0000 (UTC) Received: by mail-vb0-f46.google.com with SMTP id p13so3146026vbe.33 for ; Sun, 06 Oct 2013 12:31:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=gut189SxLzn9fudRGgpHH2vl4AsFmyBEStmT7Dn4QDY=; b=auWMNvih4qzz0oit8r9yn0aKCzy0jcpbZegzJtIfj5Dwm3/9OamzhTQqMCqK5eXbTT kQLWALip18lyIO2wmVd7JkSkPg8/fUxHElPatEl6X2afG2VMRMeEclA65duX61fvQizR njKkkqPp3hKDRSIRhGa1n5Grd+4JZji3OpKxmM5EClC/E3wWwHI9aCNLUyUrtz9AnD3Q XW4oNmU3J4vEwetnDgxm5mUXDnkQetf+xWyFKB6Eyv7rWtlnr0OtDeJUvgrGBukcO/YI uCAEGvnL5MG16w5oFxmdotNRC8gBwhXNU30i2q75wacujpJi3W3dG3yx+mwHzTe3d6bx UdUA== MIME-Version: 1.0 X-Received: by 10.220.199.5 with SMTP id eq5mr2138271vcb.16.1381087893280; Sun, 06 Oct 2013 12:31:33 -0700 (PDT) Received: by 10.220.30.130 with HTTP; Sun, 6 Oct 2013 12:31:33 -0700 (PDT) In-Reply-To: <1381005634317-5849247.post@n5.nabble.com> References: <1380880223590-5848720.post@n5.nabble.com> <524EEE40.5060208@gmail.com> <1381005634317-5849247.post@n5.nabble.com> Date: Sun, 6 Oct 2013 15:31:33 -0400 Message-ID: Subject: Re: Questions re swap-on-zfs From: Zaphod Beeblebrox To: Beeblebrox Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: freebsd-fs X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 06 Oct 2013 19:31:34 -0000 On Sat, Oct 5, 2013 at 4:40 PM, Beeblebrox wrote: > @ Zaphod Beeblebrox-2 > >> I have partition for swap and a partition for ZFS on each drive. This > >> has the additional bonus of > making swap effectively faster on a 2 drive system (2 swap partitions). > > That's what I have, with the difference that one of the swaps is on the ZFS > pool. So I have 2 swaps as well, but want to minimise usage of swap-on-SSD > so as to prevent SSD fatigue for the swap area. > Well... to be fair, swap on ZFS will deliver you twice the read speed, but only 1x the write speed of the comparable swap on two drives. That said, TRIM support for SWAP would be spiffy! > BTW, I'm the only legitimate President of the Galaxy. Just remember that, > "Left Brain" > (http://hitchhikers.wikia.com/wiki/Zaphod_Beeblebrox?action=edit§ion=1 > ) > You don't appear to have the blessings of Google to back your claim, so who would believe you?