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#!/usr/bin/python
import os
import copy
import sys
import string
import pwd
import smtplib
import socket
import time
import itertools
import multiprocessing
from run.executable.executable import Executable
test_mode = False
email_notification = True
def run_exp(nsamples, ncpu, numa_args, wss, wcycle, sleep_range_ms, walk, do_pollute, do_huge_pages, do_uncache_pages):
fstub = 'pmo'
fstub += '_host='+socket.gethostname().split('.')[0]
fstub += '_ncpu='+str(ncpu)
fstub += '_wss='+str(wss)
fstub += '_wcycle='+str(wcycle)
fstub += '_smin='+str(sleep_range_ms[0]*1000)
fstub += '_smax='+str(sleep_range_ms[1]*1000)
fstub += '_polluters='+str(do_pollute)
fstub += '_hpages='+str(do_huge_pages)
fstub += '_upages='+str(do_uncache_pages)
fstub += '_walk='+walk
filename = fstub + '.csv'
if os.path.exists(filename):
return
polluters = []
if do_pollute:
for i in range(multiprocessing.cpu_count()):
if numa_args:
# number of CPUs in one of two NUMA nodes
if ncpu == 6:
if i < 6:
numa_hack = ['--cpunodebind=0', '--interleave=0']
else:
numa_hack = ['--cpunodebind=1', '--interleave=1']
else:
numa_hack = ['--cpunodebind=0,1', '--interleave=0,1']
args = copy.deepcopy(numa_hack)
args.append('memthrash')
else:
args = []
args.append('-m')
args.append(str(i))
if numa_args:
polluters.append(Executable('numactl', args))
else:
polluters.append(Executable('memthrash', args))
if numa_args:
args = copy.deepcopy(numa_args)
args.append('cache_cost')
else:
args = []
args.append('-m')
args.append(str(ncpu))
args.append('-c')
args.append(str(nsamples))
args.append('-s')
args.append(str(wss))
args.append('-w')
args.append(str(wcycle))
if do_huge_pages:
args.append('-h')
if do_uncache_pages:
args.append('-u')
# cache_cost wants time in microseconds
args.append('-x')
args.append(str(sleep_range_ms[0]*1000))
args.append('-y')
args.append(str(sleep_range_ms[1]*1000))
if walk == 'rand':
args.append('-r')
args.append('-o')
args.append(filename)
if numa_args:
probe = Executable('numactl', args)
else:
probe = Executable('cache_cost', args)
if not test_mode:
if do_pollute:
for p in polluters:
p.execute()
time.sleep(10)
probe.execute()
probe.wait()
for p in polluters:
p.kill()
for p in polluters:
p.wait(False)
else:
print 'Process commands and arguments: '
if do_pollute:
for p in polluters:
print str(p)
print str(probe)
def send_email(_to, _msg):
user = pwd.getpwuid(os.getuid())[0]
host = socket.gethostname()
_from = "%s@%s" % (user, host)
_body = "\r\n".join(["From: %s" % _from, "To: %s" % _to, "Subject: Test Completed!", "", "{}"])
mail = smtplib.SMTP("localhost")
mail.sendmail(_from, [_to], _body.format(_msg))
mail.quit()
def main(argv):
nsamples = 5000
# We may need to test different NUMA node configurations
# according to memory interleaving across the NUMA topology.
#
# For non-numa systems, do "<#cpu>: []"
# Ex., for a 4-CPU non-numa system: "4: []"
#
# NOTE: Must update NUMA hack in run_exp() for memthrash
# for your configuration.
#
# todo: configure numa args for system automatically
ncpu_and_numa_args = {
24: []
}
wss_kb = [4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 3072, 4096, 8192, 12288, 16384]
write_cycle = [16, 4, 2]
# write_cycle = [0]
sleep_range_ms = [0,50]
# uncache = [False, True]
uncache = [False]
huge_pages = [False]
pollute = [False, True]
# walk = ['seq', 'rand']
walk = ['seq']
# disable rt throttling in linux scheduler
os.system("echo -1 > /proc/sys/kernel/sched_rt_runtime_us")
for ncpu, numa_args in ncpu_and_numa_args.iteritems():
for u in uncache:
for h in huge_pages:
if u == True and h == True:
# skip invalid combo
continue
for wcycle in write_cycle:
for w in walk:
for p in pollute:
for wss in wss_kb:
run_exp(nsamples, ncpu, numa_args, wss, wcycle, sleep_range_ms, w, p, h, u)
if email_notification:
to = "gelliott@cs.unc.edu"
msg = "Cache Ovh Collection Complete!"
send_email(to, msg)
if __name__ == "__main__":
os.environ['PATH'] += ':../liblitmus'
os.environ['PATH'] += ':../cache-ovh'
if 'LD_LIBRARY_PATH' not in os.environ:
os.environ['LD_LIBRARY_PATH'] = ''
os.environ['LD_LIBRARY_PATH'] += ':../liblitmus'
main(sys.argv[1:])
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