Swappiness is still set at 60 in LL5

[johnausten13]

What's your understanding of swappiness as it pertains to the vast range of hardware configurations out in the wild?

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My understanding is that swappiness is more like the equivalent in Windows as 'paging file'. Swappiness value sets a preference for the type of memory pages that will be scanned for potential reclamation. For ageing, mechanical hard drives which are mostly used in Linux like I used to have in laptops, reducing the swappiness value improves anonymous page reclamation and reduce swap partition churn.