pipe `ping` command into this and get csv-friendly data for graphing. Usage: `ping -D | ./ping2csv.py > file.csv`. Note: the `-D` might not be supported on your implementation of `ping`.

ping2csv.py

#!/usr/bin/python
import sys
import datetime
import re

# usage: `ping -D google.com | ./ping2csv.py > file.csv`

try:
    buff = ''
    while True:
        buff += sys.stdin.read(1)

        if len(buff) == 0:
            exit(1)
        
        if buff.endswith('\n'):
            temp = buff[:-1]
            matches = re.search('\[([0-9\.]+)\].*time\=([0-9\.]+)', temp)
            
            if hasattr(matches, 'group'):
                timestamp = datetime.datetime.fromtimestamp(float(matches.group(1)))
                ping = matches.group(2)
                print("%s,%s" % (timestamp, ping))

            buff = ''

except KeyboardInterrupt:
   sys.stdout.flush()
   pass