How To Measure the Working Set Size on Linux

1 · Brendan Gregg · Jan. 17, 2018, 8 a.m.
The Working Set Size (WSS) is how much memory an application needs to keep working. Your app may have populated 100 Gbytes of main memory, but only uses 50 Mbytes each second to do its job. That's the working set size. It is used for capacity planning and scalability analysis....