local/swap

   1 #!/bin/sh -eu
   2 # SYNTAX:
   3 # DESCRIPTION: print sorted swap usage of processes using it
   4
   5 lastpid=
   6 swap=0
   7 sudo grep -H '^Swap:' /proc/*/smaps 2>/dev/null |
   8 while IFS=: read -r file x size x
   9  do
  10         pid=${file#/proc/}
  11         pid=${pid%/smaps}
  12         size=${size% kB}
  13         size=${size##* }
  14         if test "$pid" = "$lastpid"
  15          then swap=$(( swap + size ))
  16          else
  17                 if test "$swap" -gt 0
  18                  then printf "%u pid=%u cmd=%s\n" "$swap" "$lastpid" "$(tr '\000' ' ' </proc/"$lastpid"/cmdline)"
  19                  fi
  20                 if test "$pid" = self
  21                  then break
  22                  else
  23                         lastpid=$pid
  24                         swap=$size
  25                  fi
  26          fi
  27  done |
  28 sort -nk1,1