Messages in this thread | | | Date | Tue, 1 Apr 2003 02:44:53 +0200 | From | Andrea Arcangeli <> | Subject | Re: 64GB NUMA-Q after pgcl |
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On Mon, Mar 31, 2003 at 07:41:17PM +0100, Christoph Hellwig wrote: > On Mon, Mar 31, 2003 at 08:35:06PM +0200, Andrea Arcangeli wrote: > > About you not caring anymore about the mem_map array size, that still > > matters on the embedded usage, infact rmap on the embedded usage is the > > biggest waste there, normally they don't even have swap so if something > > you should use the rmap provided for truncate, rather than wasting > > memory in the mem_map array. > > We have CONFIG_SWAP for that in 2.5..
that's useless for the case I mentioned, you definitely still need to unpage all private and shared mappings, and you can use the rmap provided by truncate for that. Infact I don't think CONFIG_SWAP is useful at all.
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