Messages in this thread | | | From | KOSAKI Motohiro <> | Subject | Re: [PATCH 1/5] vmscan: remove all_unreclaimable check from direct reclaim path completely | Date | Thu, 24 Mar 2011 16:43:15 +0900 (JST) |
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> On Thu, Mar 24, 2011 at 4:28 PM, KOSAKI Motohiro > <kosaki.motohiro@jp.fujitsu.com> wrote: > >> For example, In 4G desktop system. > >> 32M full scanning and fail to reclaim a page. > >> It's under 1% coverage. > > > > ?? I'm sorry. I haven't catch it. > > Where 32M come from? > > (1<<12) * 4K + (1<<11) + 4K + .. (1 << 0) + 4K in shrink_zones.
(lru-pages>>12) + (lru-pages>>11) + (lru-pages>>10) ... =~ 2 * lru-page
?
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