From owner-freebsd-questions Wed Aug 29 11:58:51 2001 Delivered-To: freebsd-questions@freebsd.org Received: from ns1.avatar.com (ns1.avatar.com [199.33.206.1]) by hub.freebsd.org (Postfix) with ESMTP id EC94937B403 for ; Wed, 29 Aug 2001 11:58:48 -0700 (PDT) (envelope-from kory@avatar.com) Received: from tomcat (tomcat.avatar.com [199.33.206.20]) by ns1.avatar.com (8.12.0.Beta8/8.12.0.Beta8) with SMTP id f7TIuDUM001211; Wed, 29 Aug 2001 11:56:13 -0700 (PDT) From: "Kory Hamzeh" To: "Trevin Chow" , Subject: RE: Performance tuning and adding RAM Date: Wed, 29 Aug 2001 11:58:22 -0700 Message-ID: <006701c130bc$9362dfc0$14ce21c7@avatar.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Importance: Normal Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG > > >Run your system for a while with softupdates off in a production mode > >environment. If it is fairly stable and you don't have any crashes, but > >turn on softupdates. With softupdates on, I would definitely recommend > >having the system on a UPS. > > How much of a performance difference does soft updates make? softupdates delays disk writes until the system is not so busy. My understanding is that it is very helpful in situation where you write out small files and temporary files. I plan to do some benchmarks tonight with softupdates on and off and IDE write caching on and off. I'll send you the results. If there is enough interest, I'll post it to the list. Kory To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message