On Sat, Aug 27, 2022 at 7:50 PM Cy <p...@fedicy.us.to> wrote: > On Sat, 27 Aug 2022 13:32:54 -0700 > American Citizen <website.read...@gmail.com> wrote: > > > Once I kill the algebraic > > program, shouldn't we see system memory recovered? > > That sounds a lot like the hard disk caching thing that Linux does. It > will save stuff > read from the hard disk into unused memory, so that if it's read a second > time, it will > come straight from RAM, without touching the disk. If any process actually > allocates > memory, that disk cache will be deleted transparently to free up memory > for it. > > Your problem might not be that, but I have heard of people noticing that > their memory was > still being "used" even though the programs had exited, and it turned out > that it was disk > caching, and Linux is kind of poorly designed, so they made it appear to > be used > memory, not unused memory or a special "disk cache" memory. >
Uh, I'd take issue with "poorly designed". Maybe misunderstood. To increase understanding, look at something like this: https://www.golinuxcloud.com/tutorial-linux-memory-management-overview/ Free RAM is wasted RAM.
