Date: Sun, 02 Dec 2001 15:50:56 -0500 From: "Brian F. Feldman" <green@FreeBSD.ORG> To: obrien@FreeBSD.ORG Cc: Kirk McKusick <mckusick@mckusick.com>, arch@FreeBSD.ORG Subject: Re: Enabling Softupdates in default install on -CURRENT Message-ID: <200112022050.fB2Kou800339@green.bikeshed.org> In-Reply-To: Message from "David O'Brien" <obrien@FreeBSD.ORG> of "Sun, 02 Dec 2001 12:11:09 PST." <20011202121109.A61912@dragon.nuxi.com>
next in thread | previous in thread | raw e-mail | index | archive | help
"David O'Brien" <obrien@FreeBSD.ORG> wrote: > On Sun, Dec 02, 2001 at 11:40:31AM -0800, Kirk McKusick wrote: > > In the meantime, you should > > be mounting a memory-based filesystem on /tmp. Indeed you should > > do that in any event - setting up a memory-based /tmp should > > be part of the default setup script. > > Unfortunately we don't have a very satisfying memory-based file system > at this time. > > The last time I tried it (6 mo. ago), md(4) rushed pages out to the > backing swap vs. being smarter about what to flush from the buffer > cache. I was getting the same performance with a real FFS /tmp and a > large amount of core. The malloc(9) mdmfs is always 100% core resident. I personally set up a 100MB FFS/SoftUpdates /tmp partition for every computer I install FreeBSD on. I like separating the root fs from the fs for /tmp, plus it means that I don't lose performance by the non-SoftUpdates root fs since /tmp isn't on it. The only reason I have for making it a real partition instead of an mdfs is that I like the space to be preallocated regardless of swap. -- Brian Fundakowski Feldman \ FreeBSD: The Power to Serve! / green@FreeBSD.org `------------------------------' To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200112022050.fB2Kou800339>