>From my research, I've found that ramfs, for one, is more of an experiment
than a real file system. The authors don't recommend, last I checked, that
anyone actually use it for more than a study of how to build a file system
driver. From the ramfs.c file:
--
* NOTE! This filesystem is probably most useful
* not as a real filesystem, but as an example of
* how virtual filesystems can be written.
--
Memfs, from what I've seen, seems to be built to be used on systems that
have a hard drive as well as the ram drives. It's advantage is that it will
swap out pages of the memfs file system to your hard drive, and then pull
them back into memory when needed. It's more of an effecient cacher or fast
/tmp drive, from what I can tell, than a memory only file system.
Andrew Hoying
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Mike Noyes
> Sent: Wednesday, July 25, 2001 9:38 AM
> To: [EMAIL PROTECTED]
> Subject: RE: [Leaf-devel] tmpfs for /tmp and /var/log
>
>
> Andrew Hoying, 2001-07-25 08:16 -0600
> >I found the option to limit the maximum size of the tmpfs file
> system. If
> >you add in the options area size=16m, for example, then it will
> never grow
> >larger than 16 megabytes. And it truly is amazingly fast. I did a file
> >copy between tmpfs file systems that between minix file systems
> took over
> >3 minutes to complete on my system, and it finished in less than 20
> >seconds with the tmpfs file systems.
> >
> >I certainly recommend everyone running a 2.4 kernel to test out
> the tmpfs
> >file system for their non-root partitions. I might even look into the
> >kernel patches we use to allow initrd to create a tmpfs root file system
> >in the next week or two.
> >
> >Does anyone have any concerns or objections to looking at tmpfs
> as a fast,
> >feature rich alternative to minix?
>
> Andrew,
> Have you done a comparison of ramdisk, tmpfs, ramfs, and memfs?
> I'd be very
> interested in the results.
>
> --
> Mike Noyes <[EMAIL PROTECTED]>
> http://leaf.sourceforge.net/
>
>
> _______________________________________________
> Leaf-devel mailing list
> [EMAIL PROTECTED]
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