From owner-freebsd-fs@FreeBSD.ORG Wed Aug 15 16:27:12 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 E86AA16A418 for ; Wed, 15 Aug 2007 16:27:12 +0000 (UTC) (envelope-from gore_jarold@yahoo.com) Received: from web63012.mail.re1.yahoo.com (web63012.mail.re1.yahoo.com [69.147.96.223]) by mx1.freebsd.org (Postfix) with SMTP id 837DD13C481 for ; Wed, 15 Aug 2007 16:27:12 +0000 (UTC) (envelope-from gore_jarold@yahoo.com) Received: (qmail 54065 invoked by uid 60001); 15 Aug 2007 16:27:11 -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=uJ6iwKhz1D7PAFN2sVuPT80nGoYJwHvXNCa3jFuf4ahfutQmLtbrvnHWJUUPqpty/BligqypLSIIq1ffd8CVEHqb2KDYxsuJ+18VNmtAXgDlAOlIwXDJH98CPbEFY57qBe6Iib9LnIxx7nrdv45Ttyc9TA8iR96DSES08zHBTtU=; X-YMail-OSG: FZQZWusVM1lsRtkNuDcjN6_uiD7vsPY4zeFM6W3ulm6O9rp5N0Fb.7JxtA9l50J8xw-- Received: from [71.63.232.32] by web63012.mail.re1.yahoo.com via HTTP; Wed, 15 Aug 2007 09:27:11 PDT Date: Wed, 15 Aug 2007 09:27:11 -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: <723681.52797.qm@web63012.mail.re1.yahoo.com> Subject: 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: Wed, 15 Aug 2007 16:27:13 -0000 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 ? ____________________________________________________________________________________ Got a little couch potato? Check out fun summer activities for kids. http://search.yahoo.com/search?fr=oni_on_mail&p=summer+activities+for+kids&cs=bz