Messages in this thread | | | From | Christoph Rohland <> | Subject | Re: ramdisk/tmpfs/ramfs/memfs ? | Date | 27 Apr 2001 09:58:47 +0200 |
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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.
Greetings Christoph
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