Messages in this thread | | | From | "Stephen C. Tweedie" <> | Date | Mon, 13 Dec 1999 13:32:29 +0000 (GMT) | Subject | Re: Getting big areas of memory, in 2.3.x? |
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Hi,
On Mon, 13 Dec 1999 01:08:41 +0100, Jamie Lokier <lkd@tantalophile.demon.co.uk> said:
> Stephen C. Tweedie wrote: >> Something I talked about with Linus a while back was to separate memory >> into 4MB or 16MB zones, and do allocation not from individual zones but >> from zone lists. Then you just keep track of two lists of zones: one >> which contains zones which are known to have been used for non-pagable >> allocations, and another in which all allocations are pagable.
> You could do that with dynamic granularity: mark buddy nodes as > containing non-pageable allocations when appropriate.
Yes, but without any explicit effort to keep those non-pageable allocations localised to a particular zone, you'll rapidly end up with no completely unpinned 4MB buddy nodes anywhere.
--Stephne
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