marcos valentine wrote:
Disk cache is not recommended for databases servers.
it'll slow down the performance. More ram equals more performance.
This link help me understand memory usage on linux.
https://www.linuxatemyram.com/
Basically you need yo worry about
free memory is close to 0 used memory is close to total
Almost 3GB available on a 48GB machine is very close to "free memory is 0" and "used memory is close to total", which is why I´m wondering what I can get away with :)
This free memory can go away in less than a second. Maybe it never will, so I figured why not use as much as possible --- just not too much, and this is borderline.