this one feels like it has such a simple answer, but somehow i am missing it
dmidecode and memtest86 all tell me i have 2x 4 GiB (or 4096 MB) of RAM which i have also seen with my eyes when dismantling the machine. however,
htop and conky all agree that i have 6.47 GiB (6624 MiB from free). i get that there is a conversion between GB and GiB and i would even swear that in ubuntu 16.04 (i’m now running bodhi based on 18.04) my readings were closer to (if not exactly) 7.45.
when i first noticed this, i ran across a reddit answer to a similar question that pointed concerned folks to linux ate my ram! i get the ideas of buffer and cache.
htop makes both pretty clear. i know that’s not what i’m looking at.