From owner-freebsd-performance@FreeBSD.ORG Tue Mar 15 20:07:40 2005 Return-Path: Delivered-To: freebsd-performance@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 399BA16A4CE for ; Tue, 15 Mar 2005 20:07:40 +0000 (GMT) Received: from coe.ufrj.br (roma.coe.ufrj.br [146.164.53.65]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6E9ED43D2D for ; Tue, 15 Mar 2005 20:07:39 +0000 (GMT) (envelope-from jonny@jonny.eng.br) Received: from localhost (localhost [127.0.0.1]) by coe.ufrj.br (Postfix) with ESMTP id BCB8017017; Tue, 15 Mar 2005 17:07:35 -0300 (BRT) Received: from coe.ufrj.br ([146.164.53.65]) by localhost (roma.coe.ufrj.br [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 23956-10; Tue, 15 Mar 2005 17:07:29 -0300 (BRT) Received: from [10.0.8.17] (nat.int.gov.br [200.20.196.226]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by coe.ufrj.br (Postfix) with ESMTP id 2458617016; Tue, 15 Mar 2005 17:07:29 -0300 (BRT) Message-ID: <42374080.9040609@jonny.eng.br> Date: Tue, 15 Mar 2005 17:07:28 -0300 From: =?ISO-8859-1?Q?Jo=E3o_Carlos_Mendes_Lu=EDs?= User-Agent: Mozilla Thunderbird 1.0 (Windows/20041206) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Dennis Berger References: <20050315153209.GA8863@nipsi.home.net> In-Reply-To: <20050315153209.GA8863@nipsi.home.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: amavisd-new at coe.ufrj.br cc: freebsd-performance@freebsd.org Subject: Re: vfs.ufs.dirhash_maxmem is a bit low X-BeenThere: freebsd-performance@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Performance/tuning List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Mar 2005 20:07:40 -0000 Dennis Berger wrote: > My request can we add white kernel message for the behavier of running out of hashmemory? Like it is for running out of open files. > A message will appear on /dev/console indicating that the dirhash is too low. I like this. > Or pointing out in tuning(9) that it should raised of servers with lots of files. And this. > Or raised the default from 2MB to 10MB or something. But not this! Remember that we still have some servers with low memory capacity. Isn't it possible to make this hash somewhat auto-resizeable?