Messages in this thread | | | Date | Mon, 25 Jun 2012 12:46:13 +0400 | From | Glauber Costa <> | Subject | Re: RFC: Easy-Reclaimable LRU list |
| |
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 ?
| |