So I have a server, and I'm being reported different/strage memory from several locations and I'm having trouble understanding what it all means.
Take this for example:
root@****:~# free -m total used free shared buffers cached Mem: 16078 13857 2220 0 227 11032
You'll see that I have 16G of ram, and its showing that nearly 14G of that is being used, but its not. Now I'm not blind, I see that it says "cached: 11032" but what does that mean? and why would that much memory be "cached"? what is it being cached for? why?
top is reporting the same as
htop is reporting different: (2572/16078)
Also, webmin is reporting the same as htop.
So what is it, really? what is all that memory going too, even though its "cached" can an application still use it if it needs?