monitorCPU.py

#!/usr/bin/env python

import glob

RED   = "\033[1;31m"  
BLUE  = "\033[1;34m"
CYAN  = "\033[1;36m"
GREEN = "\033[0;32m"
RESET = "\033[0;0m"
BOLD    = "\033[;1m"
REVERSE = "\033[;7m"
LIGHT_PURPLE = '\033[94m'

CRED = '\033[91m'
CEND = '\033[0m'

# Calculate cpu usage percent
with open("/proc/stat", "r") as handle:
    lines = [line.rstrip() for line in handle if line.startswith("cpu")] 

types = ["user", "nice", "system", "idle", "iowait", "irq", "softirq", "steal", "guest", "guest_nice"]

usage = {}
for i, l in enumerate(lines):
    if i < 1:
        continue

    raw = l.split(" ")
    cpu = raw[0]
    usage[cpu] = {}

    for i, val in enumerate(types):
        if not raw[i+1]:
            continue

        usage[cpu][val] = int(raw[i+1])

# Total cpu time since boot
# https://github.com/Leo-G/DevopsWiki/wiki/How-Linux-CPU-Usage-Time-and-Percentage-is-calculated
types = types[:8]
totalTimes = {}
for cpu, counters in usage.items(): 
    totaltime = 0
    for t in types:
        totaltime += int(counters[t])

    idle = counters["idle"] + counters["iowait"]
    usage = totaltime - idle

    totalTimes[cpu[3:].zfill(2)] = int( ( usage / totaltime ) * 100 )

freqs = [f for f in glob.glob("/sys/devices/system/cpu/cpu*/cpufreq/scaling_cur_freq")]
data = {}
for f in freqs:
    with open(f, "r") as handle: 
        f = f.split("/")
        data[f[5][3:].zfill(2)] = int(int(handle.read().rstrip()) / 1000)

def ColorPrint(COLOR):
    print(COLOR, k, "freq:", v, "usage:", totalTimes[k], RESET)

for k, v in sorted(data.items()):
    if v > 4200:
        ColorPrint(RED)
    elif v > 4000:
        ColorPrint(BLUE)
    elif v > 3700:
        ColorPrint(GREEN)
    else:
        print(k, "freq:", v, "usage:", totalTimes[k])