proc_pid_statm(5)

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)