Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
shell script that uses cpulimit to slow down a selfish app (does require cpulimit to be installed)
#!/usr/bin/env python
# shell script that uses cpulimit to slow down a selfish app
import os, sys, time
if "-stop" in " ".join(sys.argv):
print "stopping all limiters."
os.system('killall cpulimit')
target_app = raw_input("What app would you like to limit?\n")
limit = raw_input("Ok we're gonna tie this fucker up!\nHow much leash are you willing to give it? (out of 100% of your cpu)\n")
cpu_threads = int(os.popen("sysctl -a | grep machdep.cpu | tail -c 2").read())
print cpu_threads
def retrieve_all_threads():
global target_app
any_video_converters_threads = os.popen('''ps -eo pid,%cpu,comm | grep '''+target_app).read()
any_video_converters_threads = any_video_converters_threads.split('\n')
pids = []
for i in any_video_converters_threads:
try:
pids.append(i.split(' ')[0])
except:
pass
if len(pids[-1])<2:
pids.remove(pids[-1])
return pids
print limit
def build_command(limit):
global cpu_threads
pids = retrieve_all_threads()
tmp_limit = (int(limit)/len(pids))
if tmp_limit is 0:
tmp_limit = 1
command_limit = str(tmp_limit*cpu_threads)
tmp_limit = str(tmp_limit)
command = []
for i in pids:
command.append("nohup cpulimit -l %s -p %s & " % (command_limit,i))
extra_comment = ''
if len(command) > 4:
extra_comment = "Sweet nipples! "
print extra_comment+"I found "+str(len(command))+" threads from this app!"
print "We will have to give every thread "+tmp_limit+"% of the cpu."
run = raw_input("It's alright, I have the tools to take care of this. \nThink this will work? (y,n)\n"+str(command)+"\n")
if 'y' in run:
for i in command:
try:
os.system(i)
print "Opening thread: %s",i
except:
pass
build_command(limit)
block="""while True:
time.sleep(1)"""
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment