I'm a bit confused by the memory stats that htop is reporting on one of our servers. On the top bars, it's showing system memory as:
Mem: 456 / 7950MB
So, looks very low usage.
However, my main process is showing it's memory usage as:
VIRT RES SHR MEM% 13.3G 2388M 2239M 30%
Hmm, a lot higher.
Why are the system stats only showing 456MB used, when the process reports that it's using 2388MB?
Update Here's the output from
total used free shared buffers cached Mem: 8141292 5425364 2715928 0 103560 4839368 -/+ buffers/cache: 482436 7658856 Swap: 2097148 0 2097148