#### Linux内存占用名词解释

The following may help in interpreting process level memory values displayed as scalable columns and dis‐
cussed under topic 3a. DESCRIPTIONS of Fields’.

%MEM – simply RES divided by total physical memory
CODE – the pgms’ portion of quadrant 3
DATA – the entire quadrant 1 portion of VIRT plus all
explicit mmap file-backed pages of quadrant 3
RES – anything occupying physical memory which, beginning with
Linux-4.5, is the sum of the following three fields:
RSan – quadrant 1 pages, which include any
former quadrant 3 pages if modified