From owner-freebsd-current Tue Apr 17 1:43:20 2001 Delivered-To: freebsd-current@freebsd.org Received: from dt051n37.san.rr.com (dt051n37.san.rr.com [204.210.32.55]) by hub.freebsd.org (Postfix) with ESMTP id B4F1337B43F for ; Tue, 17 Apr 2001 01:43:15 -0700 (PDT) (envelope-from DougB@DougBarton.net) Received: from DougBarton.net (master [10.0.0.2]) by dt051n37.san.rr.com (8.9.3/8.9.3) with ESMTP id BAA68411; Tue, 17 Apr 2001 01:43:13 -0700 (PDT) (envelope-from DougB@DougBarton.net) Message-ID: <3ADC0221.32127C39@DougBarton.net> Date: Tue, 17 Apr 2001 01:43:13 -0700 From: Doug Barton Organization: Triborough Bridge & Tunnel Authority X-Mailer: Mozilla 4.77 [en] (X11; U; FreeBSD 4.3-RELEASE i386) X-Accept-Language: en MIME-Version: 1.0 To: Alfred Perlstein Cc: Matt Dillon , "'current@freebsd.org'" Subject: Re: FW: Filesystem gets a huge performance boost References: <200104161634.f3GGYZs11356@aslan.scsiguy.com> <200104162146.f3GLkGT82369@earth.backplane.com> <3ADBF9FA.9D1C4DB4@DougBarton.net> <20010417011335.V976@fw.wintelcom.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Alfred Perlstein wrote: > I'm figuring the only time when it may be a problem is on machines > with a small amount of memory. Since memory is cheap, I plan on > turning it on within the next couple of days unless a stability > issue comes up. > > I'll leave it to those people with low memory to remember to turn > it off. OK... this brings up the question of what other cool optimizations are there that may have been disabled in the past for reasons that are no longer pertinent? It might be worthwhile to create an /etc/sysctl.conf file with commented out examples of configurations for various systems. For example, # For more modern systems that have a reasonable amount of RAM #vfs.vmiodirenable=1 # Low memory systems # Systems that need lots of randomness # Low resource systems that need less randomness # Super high performance TCP options for various situations .... etc. I'm sure y'all can come up with more. It might also be desirable to put these in etc/defautls/rc.conf, but I think something of this nature might be better suited in a freer format. Doug -- Perhaps the greatest damage the American system of education has done to its children is to teach them that their opinions are relevant simply because they are their opinions. Do YOU Yahoo!? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message