Messages in this thread | | | Date | Tue, 1 Apr 2003 20:25:16 +0100 (BST) | From | Hugh Dickins <> | Subject | Re: PATCH: allow percentile size of tmpfs (2.5.66 / 2.4.20-pre2) |
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On Tue, 1 Apr 2003, Daniel Egger wrote: > Am Die, 2003-04-01 um 18.24 schrieb Christoph Rohland: > > > But on these systems you better use ramfs. > > Just curious: Why? I'm using tmpfs on these systems and I'm rather > satisfied with it; especially the option to limit the amount of space > makes it rather useful. According to the documentation ramfs is most > useful as an educational example how to write filesystems not as a > real filesystem...
Simply because quite a lot of the tmpfs code is concerned with moving pages between ram and swap: if you've limited ram and no swap, you may not want to waste your ram on that code! One day I might try applying #ifdef CONFIG_SWAPs within mm/shmem.c; but I might well not, it could get ugly, and looks rudimentary elsewhere - do we intend to get serious about CONFIG_SWAP?
Hugh
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