From owner-freebsd-fs@FreeBSD.ORG Sun Nov 22 16:15:45 2009 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 25495106566B for ; Sun, 22 Nov 2009 16:15:45 +0000 (UTC) (envelope-from roberto@keltia.freenix.fr) Received: from keltia.freenix.fr (keltia.freenix.org [IPv6:2001:660:330f:f820:213:72ff:fe15:f44]) by mx1.freebsd.org (Postfix) with ESMTP id B41FB8FC16 for ; Sun, 22 Nov 2009 16:15:44 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by keltia.freenix.fr (Postfix/TLS) with ESMTP id AB7E210F1; Sun, 22 Nov 2009 17:15:43 +0100 (CET) X-Virus-Scanned: amavisd-new at keltia.freenix.fr Received: from keltia.freenix.fr ([127.0.0.1]) by localhost (keltia.freenix.fr [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JbzmnrZI6wHr; Sun, 22 Nov 2009 17:15:43 +0100 (CET) Received: from rron.freenix.org (rron.freenix.org [193.56.58.69]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: roberto) by keltia.freenix.fr (Postfix/TLS) with ESMTPSA id 4314310CC; Sun, 22 Nov 2009 17:15:43 +0100 (CET) Date: Sun, 22 Nov 2009 17:15:16 +0100 From: Ollivier Robert To: freebsd-fs@freebsd.org, Miroslav Lachman <000.fbsd@quip.cz> Message-ID: <20091122161516.GC55532@rron.freenix.org> References: <772532900-1257123963-cardhu_decombobulator_blackberry.rim.net-1402739480-@bda715.bisx.prod.on.blackberry> <4AEEBD4B.1050407@quip.cz> <4AEEDB3B.5020600@quip.cz> <4AF46CA9.1040904@quip.cz> <9bbcef730911061101h5356d2acob2ac8791afe112@mail.gmail.com> <4AF5D611.7060408@quip.cz> <9bbcef730911071242m5ad91720xcccb7586c6848ffd@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <9bbcef730911071242m5ad91720xcccb7586c6848ffd@mail.gmail.com> X-Operating-System: MacOS X / Macbook Pro - FreeBSD 7.2 / Dell D820 SMP User-Agent: Mutt/1.5.20 (2009-06-14) Cc: Subject: Re: Performance issues with 8.0 ZFS and sendfile/lighttpd X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Nov 2009 16:15:45 -0000 According to Ivan Voras: >I'm not very familiar with this layer but since it uses struct buf and >the ZFS doesn't use bufcache, this is probably one of the things that >is bypassed, though it would be nice if it weren't since this code From what I understand from IRC, Kip is working on fixing ZFS with respect to struct buf (and also help with the ARC vs VM issues). -- Ollivier ROBERT -=- FreeBSD: The Power to Serve! -=- roberto@keltia.freenix.fr In memoriam to Ondine : http://ondine.keltia.net/