>> Is there any RAM file system that use a fixed amount of memory at all
times
quoted text
>> and will not grow and shrink dynamically like tmpfs?

quoted text
>ramfs

I mounted a ramfs filesystem with 10M size, and have a check of
/proc/meminfo.
I find the ramfs also did not have the memory preallocation.

I just add one line into /etc/fstab
none 	/tmp	ramfs	size=10m	0	0 

Any wrong in my steps?

Regards,
Jackie	  	

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