On Thursday, 10 September 2020 12:59:49 BST Hamish McIntyre-Bhatty wrote:
> "free" should report physical "real" memory usage right? If I'm mistaken
> there it could explain the numbers. The NAS box had only 14M or 256M
> free earlier despite showing no process using that much memory. It
> usually only uses about 50M if memory serves.
Don't forget that the memory under cache is not really in use as such; it is
simply memory containing parked data from earlier processes. The OS will free
that if it needs it. My machine has 8G of physical memory and free -h gives:
terry@OptiPlex:~$ free -h
total used free shared buff/cache available
Mem: 7.7Gi 6.2Gi 175Mi 73Mi 1.4Gi
1.2Gi
Swap: 15Gi 1.4Gi 14Gi
Viewing the memory in the graphical KDE System Monitor gives a totally
different answer with 6G used and no indication of cache.
Even so, I find it interesting that you are using 21G out of 31, but presumably
you are running lots of stuff.
--
Terry Coles
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