[CentOS] Errors on an SSD drive

Thu Aug 10 21:45:13 UTC 2017
J Martin Rushton <martinrushton56 at btinternet.com>

On 10/08/17 21:17, John R Pierce wrote:
> 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.
Modern?  They've been doing that since I did my VMS theory 30-odd years ago.

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