Linux Memory Vss,rss,pss,uss parsing

Reprint: http://myeyeofjava.iteye.com/blog/1837860

ADB Shell Procrank | grep com.package > Appmem

Description: Five parameters for PID Vss Rss Pss Uss

In general, memory footprint has the following rules: VSS >= RSS >= PSS >= USS

Vss-virtual Set Size Virtual memory consumption (contains memory consumed by shared libraries)
Rss-resident Set Size actually uses physical memory (contains memory consumed by shared libraries)
Pss-proportional Set Size Actual physical memory used (proportional allocation of memory consumed by shared libraries)
Uss-unique the Set Size process consumes the physical memory alone (does not contain the memory occupied by the shared library)

Linux Memory Vss,rss,pss,uss parsing