Shell Programming and Scripting

User time (seconds): 354.48
System time (seconds): 0.00
Percent of CPU this job got: 99%
Elapsed (wall clock) time (h:mm:ss or m:ss): 5:54.98
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
Maximum resident set size (kbytes): 350976
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 1366
Minor (reclaiming a frame) page faults: 0
Voluntary context switches: 0
Involuntary context switches: 0
Swaps: 0
File system inputs: 0
File system outputs: 0
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 65536
Exit status: 0

vmstat 2

#!/bin/bash
[[ $1 =~ ^[0-9]+$ ]] || {
  echo "usage:
  ${0}: <pid>"
  exit 1
}
pid=$1
ps -fp $pid
max=0
while :
do
  rss=$(ps -o rss= -p $pid)
  if [[ $rss -gt $max ]]
  then
    max=$rss
    echo "maxRSS (kb): $max"
  fi
  sleep 10
done