Re: Ideas for reducing memory copying and zeroing times

Alan Cox (alan@cymru.net)
Tue, 23 Apr 1996 10:16:07 +0100 (BST)


> The page tables came to 2108k. This is rather a lot of memory to
> have locked in RAM, especially as most of the processes are daemons
> that are idle most of the time. (I have 53 processes running right
> now, in 16Mb RAM).
> Peanuts, it takes 3mb of page tables to map all the physical pages of
> ram into kernel space on my SMP Sparc box.

Which is too much unpageable data. Page tables are meant to be paged.

Alan