From: "Pan ruochen" <panruochen@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: How kernel applies LRU to swap out physical pages?
Date: Tue, 11 Nov 2008 16:22:39 +0800 [thread overview]
Message-ID: <af0faace0811110022j161d4e26h87f2d9624b9fa494@mail.gmail.com> (raw)
Hi All,
I'm reading the linux kernel 2.6.14. But can't understand how LRU algorithm
is applied to page swapping. what is the 'USED' of LRU referred to? The
reference counter which the page is mapped by processes, or the frequency that
CPU reads/writes in the page. In common sense, the LRU algorithm will be more
optimal for the second case. But it depends on CPU capability.
I will be very appreciated if somebody can explain that in details.
-------------
Best Regards,
PRC
Nov 11, 2008
next reply other threads:[~2008-11-11 8:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-11 8:22 Pan ruochen [this message]
2008-11-11 8:57 ` Peter Zijlstra
2008-11-11 9:56 ` KOSAKI Motohiro
2008-11-11 11:33 ` Peter Zijlstra
2008-11-12 1:36 ` Pan ruochen
2008-11-11 8:58 ` KOSAKI Motohiro
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