Messages in this thread | | | From | Ed Tomlinson <> | Subject | Re: PATCH: allow percentile size of tmpfs (2.5.66 / 2.4.20-pre2) | Date | Tue, 01 Apr 2003 08:38:32 -0500 |
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CaT wrote:
> I believe the patch below will apply to both the above (I know it does > to 2.5.66 and 2.4.20-pre2 mm/shmem.c does not look any different so it > should be fine. :) > > Anyways, what this patch does is allow you to specify the max amount of > memory tmpfs can use as a percentage of available real ram. This (in my > eyes) is useful so that you do not have to remember to change the > setting if you want something other then 50% and some of your ram does > (and you can't replacew it immediately). > > Usage of this option is as follows: > > tmpfs /dev/shm tmpfs rw,size=63%,noauto 0 0 > > This is taken from my working system and sets the tmpfs size to 63% of > my real RAM (256MB). The end result is: > > Filesystem 1k-blocks Used Available Use% Mounted on > /dev/shm/tmp 160868 6776 154092 5% /tmp > > I've also tested remounting to silly values (and sane ones) and it all > works fine with no oopses or freezes and the correct values appearing > in df. > > All up I feel safer using this then a hard value.
What does tmpfs have to do with ram size? Its swappable. This _might_ be useful for ramfs but for tmpfs, IMHO, its not a good idea.
Ed Tomlinson
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