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##############################################################################
# Copyright (c) 2015 EMC and others.
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import imp
import logging
from os import listdir
import os
from os.path import isfile, join
import socket
from carbon.converter import JSONToCarbon
from carbon.emitter import CarbonMetricTransmitter
from db.job_db import JobDB
from fio.fio_invoker import FIOInvoker
class UnknownWorkload(Exception):
def __init__(self, msg):
self.msg = msg
class TestExecutor(object):
def __init__(self):
self.logger = logging.getLogger(__name__)
self.workload_modules = []
self.filename = "storperf.dat"
self.precondition = True
self.warm = True
self.event_listeners = set()
self.metrics_converter = JSONToCarbon()
self.metrics_emitter = CarbonMetricTransmitter()
self.prefix = None
self.job_db = JobDB()
def register(self, event_listener):
self.event_listeners.add(event_listener)
def unregister(self, event_listener):
self.event_listeners.discard(event_listener)
def event(self, metric):
carbon_metrics = self.metrics_converter.convert_to_dictionary(
metric,
self.prefix)
read_latency = carbon_metrics[self.prefix + ".jobs.1.read.lat.mean"]
write_latency = carbon_metrics[self.prefix + ".jobs.1.write.lat.mean"]
read_iops = carbon_metrics[self.prefix + ".jobs.1.read.iops"]
write_iops = carbon_metrics[self.prefix + ".jobs.1.write.iops"]
message = "Average Latency us Read/Write: " + read_latency \
+ "/" + write_latency + " IOPS r/w: " + \
read_iops + "/" + write_iops
for event_listener in self.event_listeners:
event_listener(message)
self.metrics_emitter.transmit_metrics(carbon_metrics)
def register_workloads(self, workloads):
if (workloads is None or len(workloads) == 0):
workload_dir = os.path.normpath(
os.path.join(os.path.dirname(__file__), "workloads"))
workload_files = [
f for f in listdir(workload_dir)
if isfile(join(workload_dir, f))]
workloads = []
for filename in workload_files:
mname, ext = os.path.splitext(filename)
if (not mname.startswith('_')):
workloads.append(mname)
if (self.warm is True):
workloads.insert(0, "_warm_up")
if (self.precondition is True):
workloads.insert(0, "_ssd_preconditioning")
for workload in workloads:
try:
workload_module = self.load_from_file("workloads/" +
workload + ".py")
self.logger.debug("Found: " + str(workload_module))
if(workload_module is None):
raise UnknownWorkload("Unknown workload: " + workload)
self.workload_modules.append(workload_module)
except ImportError, err:
raise UnknownWorkload(err)
def load_from_file(self, uri):
uri = os.path.normpath(os.path.join(os.path.dirname(__file__), uri))
path, fname = os.path.split(uri)
mname, ext = os.path.splitext(fname)
no_ext = os.path.join(path, mname)
self.logger.debug("Looking for: " + no_ext)
if os.path.exists(no_ext + '.pyc'):
self.logger.debug("Loading compiled: " + mname + " from " + no_ext)
return imp.load_compiled(mname, no_ext + '.pyc')
if os.path.exists(no_ext + '.py'):
self.logger.debug("Compiling: " + mname + " from " + no_ext)
return imp.load_source(mname, no_ext + '.py')
return None
def execute(self):
shortname = socket.getfqdn().split('.')[0]
invoker = FIOInvoker()
invoker.register(self.event)
self.job_db.create_job_id()
self.logger.info("Starting job " + self.job_db.job_id)
for workload_module in self.workload_modules:
workload_name = getattr(workload_module, "__name__")
constructorMethod = getattr(workload_module, workload_name)
self.logger.debug(
"Found workload: " + str(constructorMethod))
workload = constructorMethod()
workload.filename = self.filename
workload.invoker = invoker
if (workload_name.startswith("_")):
iodepths = [2, ]
blocksizes = [4096, ]
else:
iodepths = [1, 16, 128]
blocksizes = [4096, 65536, 1048576]
for blocksize in blocksizes:
for iodepth in iodepths:
full_workload_name = workload_name + \
".queue-depth." + str(iodepth) + \
".block-size." + str(blocksize)
workload.options['iodepth'] = str(iodepth)
workload.options['bs'] = str(blocksize)
self.logger.info(
"Executing workload: " + full_workload_name)
self.prefix = shortname + "." + self.job_db.job_id + \
"." + full_workload_name
self.job_db.start_workload(full_workload_name)
workload.execute()
self.job_db.end_workload(full_workload_name)
self.logger.info("Finished job " + self.job_db.job_id)
def fetch_results(self, job, workload_name=""):
self.job_db.job_id = job
return self.job_db.fetch_results(workload_name)
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