Kernel tweak: swappiness

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Kernel tweak: swappiness

Postby QuantumKnot on February 8th, 2008, 12:25 pm

Here is a kernel tweak (that doesn't require a kernel recompile for those like Kamil who seemed distressed about it :P ) that reduces the chance of applications getting swapped into VM when it is clear that there is plenty of memory free (but sucked up by cache). So the kernel has a higher tendency to reclaim memory from the cache rather than swap out our process pages.

http://fedoraguide.info/index.php/Fedora8#Swappiness

Here's an explanation about what this parameter does exactly

http://lwn.net/Articles/83588/
http://kerneltrap.org/node/1044
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