Messages in this thread | | | Date | Tue, 26 Jun 2012 09:12:32 +0900 | From | Minchan Kim <> | Subject | Re: RFC: Easy-Reclaimable LRU list |
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On 06/25/2012 05:46 PM, Glauber Costa wrote:
> On 06/19/2012 09:49 AM, Minchan Kim wrote: >> Hi everybody! >> >> Recently, there are some efforts to handle system memory pressure. >> >> 1) low memory notification - [1] >> 2) fallocate(VOLATILE) - [2] >> 3) fadvise(NOREUSE) - [3] >> >> For them, I would like to add new LRU list, aka "Ereclaimable" which >> is opposite of "unevictable". >> Reclaimable LRU list includes_easy_ reclaimable pages. >> For example, easy reclaimable pages are following as. >> >> 1. invalidated but remained LRU list. >> 2. pageout pages for reclaim(PG_reclaim pages) >> 3. fadvise(NOREUSE) >> 4. fallocate(VOLATILE) >> >> Their pages shouldn't stir normal LRU list and compaction might not >> migrate them, even. > What about other things moving memory like CMA ?
Sorry for not being able to understand your point. Can you elaborate a bit more?
-- Kind regards, Minchan Kim
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