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What is /dev/shm?

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quasimoto

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Nov 1, 2001, 7:06:39 PM11/1/01
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Recently installed the latest versions of Mandrake and RH and noticed there
is an additional partition /dev/shm I have never seen before. What is this?

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bdonlan

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Nov 1, 2001, 7:28:00 PM11/1/01
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quasimoto wrote:

> Recently installed the latest versions of Mandrake and RH and noticed
> there is an additional partition /dev/shm I have never seen before. What
> is this?
>

It's some sort of memory fs that is used for shared memory vie mmap(), I
think...

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cll muzh

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Nov 2, 2001, 3:38:34 AM11/2/01
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Do you remember the Amiga and its infinitely resizable RAM-disk? /dev/shm
is (almost) exactly the same. You can mount it with a command like
mount -t tmpfs tmpfs /dev/shm
or have it always available by putting something like
tmpfs /dev/shm tmpfs defaults 0 0
in your /etc/fstab .

quasimoto wrote:

> Recently installed the latest versions of Mandrake and RH and noticed
> there is an additional partition /dev/shm I have never seen before. What
> is this?
>

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Never trust a man in a suit --
cll

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