Re: calculating process memory usage

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On 8/14/20 11:41 AM, Sergio Belkin wrote:
Perhaps this ps_mem snippet is useful:
<snip
Private  +   Shared  =  RAM used       Program
</snip>
....
<snip>
294.8 MiB +   4.7 MiB = 299.4 MiB       telegram-desktop.bin
290.3 MiB +  22.1 MiB = 312.4 MiB       rocketchat-desktop (5)
323.8 MiB +   9.5 MiB = 333.2 MiB       kwin_x11 (9)
344.5 MiB +   1.4 MiB = 345.8 MiB       nextcloud
373.2 MiB +  21.2 MiB = 394.4 MiB       spotify (5)
416.6 MiB +   1.3 MiB = 417.9 MiB       plasma-discover
448.5 MiB +  16.6 MiB = 465.2 MiB       MainThread
892.8 MiB + 444.5 KiB = 893.2 MiB       packagekitd
   1.0 GiB +   8.6 MiB =   1.0 GiB       plasmashell
   1.9 GiB +  81.0 MiB =   1.9 GiB       Web Content (9)
---------------------------------
                           9.7 GiB
=================================

Since you've brought this up, this is a question I've had for a long time. How do you get real memory+swap usage information for processes or is that even possible? Looking in ps or top, the RES is way too small and the VIRT/VSIZE is way too big. ps_mem is also way too small, or at least the total is less than half of the real memory usage. Is there something else using that much memory that isn't processes? buffers and cache don't account for the difference either.
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