On 3/9/07, Jürgen Hötzel <[EMAIL PROTECTED]> wrote: > On Fri, Mar 09, 2007 at 05:31:50PM -0300, Alexandre Moreira wrote: > > Please excuse me (and explain) if this question is just stupid but, > > > > I just noticed I have a 252Mb tmpfs on /dev/shm just sitting there > > with no use, and I can see that it is my fstab which is mounting it. > > > > Why is that useful ? Is it wasting those 252Mb of ram by being mounted > > or will the kernel use this space if it ever needs to ? > > You don't waste any space by using tmpfs. Contrary to a ramdisk, space can be > allocated dynamically, there is no underlying block device (just like > initramfs compared to initrd). Infrequently accessed data will be swapped > out.
Thanks for the information (and thanks Aaron also). Just to make it clear: Even if it is grown to 252Mb, if no "files" are inside it then it is not really using my ram ? I always thought these things would size themselves according to use, but this one is always there with 250Mb without anything really using the space there. Regards, Alexandre Moreira. PS: just for your information, df says its 252Mb but it is 0% in use. > Jürgen > > _______________________________________________ > arch mailing list > [email protected] > http://www.archlinux.org/mailman/listinfo/arch > _______________________________________________ arch mailing list [email protected] http://www.archlinux.org/mailman/listinfo/arch
