On 8/10/2017 1:12 PM, Warren Young wrote:
It’s a bad idea to do without swap even if you almost never use it, because 
today’s bloated apps often have many pages of virtual memory they rarely or 
never actually touch.  You want those pages to get swapped out quickly so that 
the precious RAM can be used more productively; by the buffer cache, if nothing 
else.


most modern virtual memory OS's don't swap out unused pages, instead, they swap IN accessed pages directly from the executable file. only thing written to swap are 'dirty' pages that have been changed since loading.


--
john r pierce, recycling bits in santa cruz

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