Subject: Re: [CentOS] Errors on an SSD drive

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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