On Tue, 29 May 2012, Iwan Aucamp wrote:
 - Is there a  parameter similar to /proc/sys/vm/swappiness that can control 
how long unused pages in page cache stay in physical ram
if there is no shortage of physical ram ? And if not how long will unused pages 
stay in page cache stay in physical ram given there
is no shortage of physical ram ?


Absent pressure for memory, no longer referenced pages will stay in memory forever. They can then be re-referenced in memory.

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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