From owner-freebsd-fs@FreeBSD.ORG  Wed Mar  5 14:53:17 2014
Return-Path: <owner-freebsd-fs@FreeBSD.ORG>
Delivered-To: freebsd-fs@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 9276A91A
 for <freebsd-fs@freebsd.org>; Wed,  5 Mar 2014 14:53:17 +0000 (UTC)
Received: from blade.simplesystems.org (blade.simplesystems.org [65.66.246.74])
 (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by mx1.freebsd.org (Postfix) with ESMTPS id 51472218
 for <freebsd-fs@freebsd.org>; Wed,  5 Mar 2014 14:53:16 +0000 (UTC)
Received: from freddy.simplesystems.org (freddy.simplesystems.org
 [65.66.246.65])
 by blade.simplesystems.org (8.14.4+Sun/8.14.4) with ESMTP id s25Er9m5022237;
 Wed, 5 Mar 2014 08:53:09 -0600 (CST)
Date: Wed, 5 Mar 2014 08:53:09 -0600 (CST)
From: Bob Friesenhahn <bfriesen@simple.dallas.tx.us>
X-X-Sender: bfriesen@freddy.simplesystems.org
To: krad <kraduk@gmail.com>
Subject: Re: Is LZ4 compression of the ZFS L2ARC available in any
 RELEASE/STABLE?
In-Reply-To: <CALfReyc6hwc13TFc8AGZbVvyK2enfEjhJ8ndAAQ6p7pWzg-QCg@mail.gmail.com>
Message-ID: <alpine.GSO.2.01.1403050850280.1717@freddy.simplesystems.org>
References: <CAJ7kQyGTOuynOoLukXbP2E6GPKRiBWx8_mLEchk90WDKO+o-SA@mail.gmail.com>
 <53157CC2.8080107@FreeBSD.org>
 <CAJ7kQyGQjf_WbY64bLVX=YfmJUfAd8i22kVbVhZhEWPMg7bbQw@mail.gmail.com>
 <5315D446.3040701@freebsd.org>
 <CAJ7kQyFf19Un_TS=kW=T21HT+oabhsUhJij5oixQ2_uh0LvHRA@mail.gmail.com>
 <alpine.GSO.2.01.1403042037290.1717@freddy.simplesystems.org>
 <CAJ7kQyEp208XKt3CaiBufiB+g_CHAkUgzAzVdX_6Gx2WyW1ENg@mail.gmail.com>
 <CALfReyc6hwc13TFc8AGZbVvyK2enfEjhJ8ndAAQ6p7pWzg-QCg@mail.gmail.com>
User-Agent: Alpine 2.01 (GSO 1266 2009-07-14)
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.2
 (blade.simplesystems.org [65.66.246.90]);
 Wed, 05 Mar 2014 08:53:09 -0600 (CST)
Cc: FreeBSD FS <freebsd-fs@freebsd.org>
X-BeenThere: freebsd-fs@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Filesystems <freebsd-fs.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-fs/>
List-Post: <mailto:freebsd-fs@freebsd.org>
List-Help: <mailto:freebsd-fs-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-fs>,
 <mailto:freebsd-fs-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 05 Mar 2014 14:53:17 -0000

On Wed, 5 Mar 2014, krad wrote:

> I thought the recordsize referred to the maximum block size rather than the actual block size. Please correct me if im wrong

It is the actual block size used except for tail blocks (i.e. end of 
file) and is the block size before any compression is applied.  When 
compression is enabled, the actual block written to disk is hopefully 
smaller.

Bob
-- 
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/