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    SubjectRe: ramdisk/tmpfs/ramfs/memfs ?
    Hi Padraig,

    On Thu, 26 Apr 2001, Padraig Brady wrote:
    > 2. Is tmpfs is basically swap and /tmp together in a ramdisk?
    > The advantage being you need to reserve less RAM for both
    > together than seperately?

    tmpfs is ramfs+swap+limits. It is not using ramdisks and is not
    related to them.

    > 3. If I've no backing store (harddisk?) is there any advantage
    > of using tmpfs instead of ramfs? Also does tmpfs need a
    > backing store?

    Probably yes, since you spare a little bit kernel memory. most of
    tmpfs is unconditionally in the kernel for shared mappings. So the
    actual CONFIG_TMPFS only adds some small functions to the kernel to
    export this to usre space.


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