4

According to the linux man pages of proc(5):

/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
           (same as VmRSS in /proc/[pid]/status)
share      (3) shared pages (i.e., backed by a file)
text       (4) text (code)
lib        (5) library (unused in Linux 2.6)
data       (6) data + stack
dt         (7) dirty pages (unused in Linux 2.6)

if I compare the results with the ubuntu system monitor the units seem to be Mb, but I'm not 100% sure. What does "measured in pages" means?

5

The pagesize is a unit of memory assignment/addressing used by the Linux kernel.

You find out what the size it is (in bytes) with getconf PAGESIZE

4096 = 4kB is the default.

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