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Message-ID: <4FE8FE70.6050107@kernel.org> Date: Tue, 26 Jun 2012 09:12:32 +0900 From: Minchan Kim <minchan@...nel.org> To: linux-kernel@...r.kernel.org Cc: linux-kernel@...r.kernel.org Subject: Re: RFC: Easy-Reclaimable LRU list 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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