Messages in this thread | | | Date | Wed, 22 Mar 2000 08:01:16 -0500 | From | "Jim Nance" <> | Subject | Re: Memory Mapped Filesystem |
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On Tue, Mar 21, 2000 at 11:59:55PM +0100, Jamie Lokier wrote: > Thomas Pornin wrote: > > Therefore, I intend to implement such a filesystem. For this, I need > > some help; specifically, I ask myself the following questions: > > -- does such a filesystem already exists ? > > Nearly. The recently added shmfs handles the memory management issues > and, being widely used, will get fairly thorough testing.
I have done some benchmarks which show that Linux does not need a tmpfs like filesystem for performance. The benchmark numbers were in one of the linux FAQs at one time, but I dont remember which one.
However, using shmfs for an automatically erased /tmp thats shares swap space is quite appealing to me (and was what Thomas asked for). Also, /tmp seems like a natural place for shared memory files to appear.
Jim
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