From owner-freebsd-questions Mon Jun 29 15:12:57 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA19894 for freebsd-questions-outgoing; Mon, 29 Jun 1998 15:12:57 -0700 (PDT) (envelope-from owner-freebsd-questions@FreeBSD.ORG) Received: from spinner.netplex.com.au (spinner.netplex.com.au [202.12.86.3]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id PAA19744; Mon, 29 Jun 1998 15:12:13 -0700 (PDT) (envelope-from peter@netplex.com.au) Received: from spinner.netplex.com.au (localhost [127.0.0.1]) by spinner.netplex.com.au (8.8.8/8.8.8/Spinner) with ESMTP id GAA03588; Tue, 30 Jun 1998 06:11:29 +0800 (WST) (envelope-from peter@spinner.netplex.com.au) Message-Id: <199806292211.GAA03588@spinner.netplex.com.au> X-Mailer: exmh version 2.0.2 2/24/98 To: "Paul T. Root" cc: rminnich@Sarnoff.COM (Ron G. Minnich), hackers@FreeBSD.ORG, questions@FreeBSD.ORG, phk@FreeBSD.ORG Subject: Re: looking for ram file system (NOT MFS) In-reply-to: Your message of "Mon, 29 Jun 1998 11:28:11 EST." <199806291628.LAA10456@horton.iaces.com> Date: Tue, 30 Jun 1998 06:11:28 +0800 From: Peter Wemm Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG "Paul T. Root" wrote: > In a previous message, Ron G. Minnich said: > > I'm looking for something like a ram file system for some work i'm doing. > > It needs to support ram-based lookup, mkdir, rmdir, etc. It needs to be > > BSD or GPL copyright, and run under current. Any pointers appreciated. > > mfs Recheck the subject line: "looking for ram file system (NOT MFS)" ^^^^^^^^^ I believe Poul-Henning Kamp was working on a mallocfs at some point.. MFS is bad in that it doesn't allocate and release swap. It'd be seriously great to have something that could allocate and free pageable memory as files were written and deleted. MFS never releases swap space once the mount_mfs process faults in an anon page. Doing it seperately from UFS would be a good start since it wouldn't be wasting time emulating a disk structure. Cheers, -Peter To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message