def main():
parser = argparse.ArgumentParser(description="Run experiments")
parser.add_argument("--debug", default=False, const=True, action="store_const", help="enable debug mode")
parser.add_argument("-t", "--tests", default=["single", "double", "random", "perf_single"], nargs="*")
parser.add_argument("-e", "--events", default=perftool.get_useful_events(), nargs="*")
parser.add_argument("--db", required=True, help="name of mongo database")
parser.add_argument(
"--no-start",
type=bool,
default=False,
help="Assume that instances are already started. Images are not regenerated, \
VMs are not killed on start.",
)
parser.add_argument("--idlness", type=bool, const=True, default=False, nargs="?", help="measure idlness and exit")
args = parser.parse_args()
# INIT
if os.geteuid() != 0:
sys.exit("you need root to run this scrips")
setrlimit(RLIMIT_NOFILE, (10240, 10240))
# signal(SIGCHLD, SIG_IGN)
# signal(SIGINT, SIG_IGN)
topology = numa.OnlineCPUTopology()
log.notice("topology:\n%s" % topology)
cpu_name = numa.get_cpu_name()
log.debug("cpu name: %s" % cpu_name)
# events = perftool.get_useful_events()
# log.debug("useful events: %s", events)
mongo_client = MongoClient()
db = mongo_client[args.db]
gc.disable()
# MACHINE-SPECIFIC CONFIGURATION
hostname = socket.gethostname()
if hostname == "fx":
run("hdparm -S 0 /dev/sda", sudo="root")
cpus_near = []
cpu1 = topology.cpus[0]
cpu2 = topology.ht_siblings[cpu1]
cpus_near = [cpu1, cpu2]
del cpu1, cpu2
cpus_far = topology.cpus_no_ht[:2]
cpus_all = topology.cpus
# cfg.idfactor = 10
elif hostname == "ux32vd":
cpus_near = topology.cpus_no_ht
cpus_far = topology.cpus_no_ht
cpus_all = topology.cpus_no_ht
cfg.idfactor = 3
elif hostname == "p1":
cpus_near = topology.cpus_no_ht
cpus_far = None
cpus_all = cpus_near
else:
raise Exception("No profile for machine % " % hostname)
print("cpus_near:", cpus_near, "cpus_far:", cpus_far)
if args.debug:
log.critical("Warning! Debug enabled. Using debug database")
log.notice(args)
cfg.warmup = 0.5
cfg.measure = 0.5
cfg.idfactor *= 10
db = mongo_client[args.db + "_debug"]
# PRE-FLIGHT CHECK
if not args.no_start:
warning("killing all kvms")
cgmgr.graceful(timeout=30)
subprocess.call("/home/sources/perftests/regen_img.sh")
subprocess.check_output("sync")
if args.idlness:
log.debug("measuring idlness")
return print("idleness is", check_idleness())
# EXPERIMENT 1: SINGLE TASK PERFORMANCE (IDEAL PERFORMANCE)
if "single" in args.tests:
instances = start_instances([cpus_near[0]])
inst = instances[0]
measure_single(cg=inst.cg, Popen=inst.Popen)
stop_instances(instances)
# EXPERIMENT 2: TWO TASK PERFORMANCE
# near
if "double" in args.tests:
instances = start_instances(cpus_near)
inst1 = instances[0]
inst2 = instances[1]
measure_double(cg1=inst1.cg, cg2=inst2.cg, Popen1=inst1.Popen, Popen2=inst2.Popen)
stop_instances(instances)
# far
if cpus_far:
instances = start_instances(cpus_far)
inst1 = instances[0]
inst2 = instances[1]
measure_double(cg1=inst1.cg, cg2=inst2.cg, Popen1=inst1.Popen, Popen2=inst2.Popen)
stop_instances(instances)
# EXPERIMENT 3: arbitrary tests
if "random" in args.tests:
with VMS(cpus_all) as instances:
arbitrary_tests(instances=instances, cpucfg=[1 for _ in cpus_all], num=1000)
# EXPERIMENT 4: test with all counters enabled
if "perf_single" in args.tests:
db.single.drop()
col = db.single
with RPCMgr("0") as vms:
vm = vms["0"]
wait_idleness(cfg.idfactor * 2)
r = perf_single(vm=vm, cfg=cfg, col=col, events=args.events)
# EXPERIMENT 5: measurements stability
if "perf_stab" in args.tests:
vmname = str(cpus_far[0])
with RPCMgr(vmname) as vms:
vm = vms[vmname]
log.notice("running tests on VM " + vmname)
wait_idleness(cfg.idfactor * 2)
for attempt in range(3):
for name, evset in evsets.items():
for t in [1, 3, 10, 30, 90, 180, 300]:
# for t in [30]:
cfg.measure = t if not args.debug else 1
col = db["stab_%s_%ss" % (name, t)]
r = perf_single(vm=vm, cfg=cfg, col=col, benchmarks=benchmarks, events=evset)
# EXPERIMENT 6: measurements stability
if "myperf_stab" in args.tests:
vmname = str(cpus_far[0])
with RPCMgr(vmname) as vms:
vm = vms[vmname]
log.notice("running tests on VM " + vmname)
wait_idleness(cfg.idfactor * 2)
for attempt in range(3):
for t in [1, 3, 10, 30, 90, 180, 300]:
# for t in [90]:
log.error("gc-collected %s elemets" % gc.collect())
cfg.measure = t if not args.debug else 1
col = db["stab_%ss" % t]
r = myperf_single(vm=vm, cfg=cfg, col=col, benchmarks=benchmarks)
input("press any key to continue")
def __exit__(self, t, v, tb):
if t:
log.critical("Got exception %s: %s" % (t, v))
log.critical("\n".join(format_tb(tb)))
cgmgr.graceful()
