NAME

       /proc/pid/statm - memory usage information

DESCRIPTION

       /proc/pid/statm
              Provides information about memory usage, measured in pages.  The columns are:

                  size       (1) total program size
                             (same as VmSize in /proc/pid/status)
                  resident   (2) resident set size
                             (inaccurate; same as VmRSS in /proc/pid/status)
                  shared     (3) number of resident shared pages
                             (i.e., backed by a file)
                             (inaccurate; same as RssFile+RssShmem in
                             /proc/pid/status)
                  text       (4) text (code)
                  lib        (5) library (unused since Linux 2.6; always 0)
                  data       (6) data + stack
                  dt         (7) dirty pages (unused since Linux 2.6; always 0)

              Some  of  these  values  are  inaccurate  because  of a kernel-internal scalability
              optimization.   If  accurate  values   are   required,   use   /proc/pid/smaps   or
              /proc/pid/smaps_rollup  instead,  which  are  much  slower  but  provide  accurate,
              detailed information.

SEE ALSO

       proc(5), proc_pid_status(5)