Date: Tue, 30 Jun 1998 12:11:47 +0200 From: Poul-Henning Kamp <phk@critter.freebsd.dk> To: Peter Wemm <peter@netplex.com.au> Cc: "Paul T. Root" <proot@horton.iaces.com>, rminnich@Sarnoff.COM (Ron G. Minnich), hackers@FreeBSD.ORG, questions@FreeBSD.ORG Subject: Re: looking for ram file system (NOT MFS) Message-ID: <13585.899201507@critter.freebsd.dk> In-Reply-To: Your message of "Tue, 30 Jun 1998 06:11:28 %2B0800." <199806292211.GAA03588@spinner.netplex.com.au>
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In message <199806292211.GAA03588@spinner.netplex.com.au>, Peter Wemm writes: >"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. Actually doing it separately from UFS would be a waste of time, but that is a different issue. the mallocfs I wrote used the kernel malloc and was consequently limited to 20Mbyte and non-pageable. A "vmfs" is on my wishlist too... -- Poul-Henning Kamp FreeBSD coreteam member phk@FreeBSD.ORG "Real hackers run -current on their laptop." "ttyv0" -- What UNIX calls a $20K state-of-the-art, 3D, hi-res color terminal To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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