From owner-freebsd-fs@FreeBSD.ORG Thu Aug 16 16:17:56 2007 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 8C1B616A417 for ; Thu, 16 Aug 2007 16:17:56 +0000 (UTC) (envelope-from gore_jarold@yahoo.com) Received: from web63005.mail.re1.yahoo.com (web63005.mail.re1.yahoo.com [69.147.96.216]) by mx1.freebsd.org (Postfix) with SMTP id 314BA13C442 for ; Thu, 16 Aug 2007 16:17:56 +0000 (UTC) (envelope-from gore_jarold@yahoo.com) Received: (qmail 63181 invoked by uid 60001); 16 Aug 2007 16:17:55 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=X-YMail-OSG:Received:Date:From:Subject:To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=g3/iY/8/YD1At1fSoY8LrUXSXJjSUKpfWkOZq6DvKrOAKKaqxG9kavFRwiff/wtFMiS5Xqwy0+11u791JHIcg7AWS+zv1wiJeQlN+P09U5tckbU+p3pq4NvbUk5sDH5dpmmgMvnvfCZXSAKtIc66bVscx37ZiEc1dU4LiTqMgwU=; X-YMail-OSG: VYQAPl0VM1lC27nG1I6Oml7cPHm23rz6SDF2S0AjIk4HaE6nmYYjmJLXYs4tsVxrSq0EBcqjwnRaWPErYgTetOr5hyM5Qk12IME- Received: from [71.63.232.32] by web63005.mail.re1.yahoo.com via HTTP; Thu, 16 Aug 2007 09:17:55 PDT Date: Thu, 16 Aug 2007 09:17:55 -0700 (PDT) From: Gore Jarold To: freebsd-fs@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Message-ID: <440077.63078.qm@web63005.mail.re1.yahoo.com> Subject: Re: vfs.ufs.dirhash_maxmem ... how high can I go ? 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: Thu, 16 Aug 2007 16:17:56 -0000 On Wed, 15 Aug 2007, Gore Jarold wrote: > Based on the previous discussion, I have decided to up > my dirhash_maxmem and also to start tracking its usage > over time ... > > I doubled it, then doubled again, then again ... and > the system even hit the 16 MB ceiling. > > So now I have set it to 32 MB and we will see if the > system can max that out. > > In the meantime, are there any unexpected consequences > of upping this value to 32 MB ? > > I have 4 GB of physical and 4 GB of swap, running on > normal 32-bit x86, and I have this set as well: > > kern.maxdsiz="2572000000" > > any comments ? > > Also, now that we see that my dirhash usage is _very > high_, any revised comments on the ability of these > workloads to crash a machine that was at the 2 MB > default ? Ok, it just ht the 32 MB limit. Bad things on the horizon if I up it further ? Or does my 4+4 GB memory and other details above make it benign ? ____________________________________________________________________________________ Take the Internet to Go: Yahoo!Go puts the Internet in your pocket: mail, news, photos & more. http://mobile.yahoo.com/go?refer=1GNXIC