zayat / smaps

Analyze memory statistics in use of /proc/<pid>/smaps.

Usage

Usage: smaps [-p pid | -f filename] [-s field]
Analyze memory statistics in use of /proc/<pid>/smaps.
Optional arguments:
  -p <pid>      pid of the target process.
  -f <filename> use <filename> instead of /proc/<pid>/smaps
  -s <field>    only list memory usage by <field>, including:
        size    Size: (kB)
         rss    Rss: (kB)
         pss    Pss: (kB)
        shrc    Shared_Clean: (kB)
        shrd    Shared_Dirty: (kB)
        pric    Private_Clean: (kB)
        prid    Private_Dirty: (kB)
         ref    Referenced: (kB)
        anon    Anonymous: (kB)
       anonp    AnonHugePages: (kB)
        swap    Swap: (kB)
         kps    KernelPageSize: (kB)
         mmu    MMUPageSize: (kB)
       lockd    Locked: (kB)
Example:
    To get summary memory info:
         smaps -p <pid>
    Find out the most 'pss' consumption segments:
         smaps -p <pid> -s pss | grep -e ' rw-p ' | sort -rn | head

Example Output

           Total:  324 mappings

            Size:  174848 kB
             Rss:  27124 kB
             Pss:  10531 kB
    Shared_Clean:  15500 kB
    Shared_Dirty:  3724 kB
   Private_Clean:  1540 kB
   Private_Dirty:  6360 kB
      Referenced:  24104 kB
       Anonymous:  9860 kB
   AnonHugePages:  0 kB
            Swap:  0 kB
  KernelPageSize:  1300 kB
     MMUPageSize:  1300 kB
          Locked:  0 kB


  2456 kB b8366000-b8666000 rw-p 00000000 00:00 0 [heap]
  1152 kB b8227000-b8366000 rw-p 00000000 00:00 0 [heap]
   596 kB 50800000-50900000 rw-p 00000000 00:00 0
   292 kB 3e000000-3e049000 rw-p 00000000 00:00 0
   192 kB 2b300000-2b339000 rw-p 00000000 00:00 0
   164 kB 5e500000-5e529000 rw-p 00000000 00:00 0
   140 kB b7983000-b79d8000 rw-p 00000000 00:00 0
   132 kB 58900000-58a00000 rw-p 00000000 00:00 0