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#!/usr/bin/python
import logging
from string import split
from subprocess import Popen, PIPE
import time
# grab the top five memory consuming processes, returning them in a string of
# of the format:
#
# name1:kB1,name2:kB2,...,name5:kB5
def topProcesses():
output = Popen(["ps", "-eo", "comm,rss", "--sort", "-rss", "--no-headers"], stdout=PIPE).communicate()[0]
top5 = output.split("\n")[:5]
return ",".join(map(lambda (a,b): a+":"+b, map(split, top5)))
def logit():
buffers = 0
cached = 0
memTotal = 0
memFree = 0
swapTotal = 0
swapFree = 0
global mem_logger
with open("/proc/meminfo") as f:
for line in f.readlines():
if line.startswith("Buffers:"):
buffers = line.split()[1]
elif line.startswith("Cached:"):
cached = line.split()[1]
elif line.startswith("MemTotal:"):
memTotal = line.split()[1]
elif line.startswith("MemFree:"):
memFree = line.split()[1]
elif line.startswith("SwapTotal:"):
swapTotal = line.split()[1]
elif line.startswith("SwapFree:"):
swapFree = line.split()[1]
d = {"memUsed": int(memTotal)-int(memFree)-int(cached)-int(buffers),
"swapUsed": int(swapTotal)-int(swapFree),
"procs": topProcesses()}
mem_logger.debug("%(memUsed)d %(swapUsed)d %(procs)s" % d)
mem_logger = logging.getLogger("memLog")
mem_logger.setLevel(logging.DEBUG)
handler = logging.FileHandler("/tmp/memory.dat")
handler.setLevel(logging.DEBUG)
handler.setFormatter(logging.Formatter("%(asctime)s %(message)s", "%H:%M:%S"))
mem_logger.addHandler(handler)
while True:
logit()
time.sleep(1)
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