I read about tmpfs and got curious to get the benefits from it. So, I created a directory and mounted as tmpfs.
So, as per theory, whatever is written in tmpfs gets stored on RAM directly and lasts till reboot. So, I created a 10 GB of file on tmpfs drive. As per theory, htop/top command must show RAM consumption to be more than 10 GB. I have 256 GB of RAM, but my RAM consumption was less and same as it was before creation of 10 GB of file on tmpfs.
Is there something that I missed out?
freecommand? – muru Dec 28 '14 at 18:29\0s? That wouldn't consume any memory -/tmpfsunderstands file holes. – mikeserv Dec 28 '14 at 18:29/dev/zero) and my free memory jumped by 4GB after I deleted it. It seems to have itemized it ascacheddata so if you're looking at the+/- buffers/cacheline it won't change. – Bratchley Dec 28 '14 at 18:32htopspecifically. Just checked on my system and it's showing memory used sans cache so that's probably the issue. Thehtopmetric doesn't account for the area it's actually storing the file data in. – Bratchley Dec 28 '14 at 18:38