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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 logging
class _base_workload(object):
def __init__(self):
self.logger = logging.getLogger(self.__class__.__name__)
self.default_filesize = "1G"
self.filename = '/dev/vdb'
self.options = {
'ioengine': 'libaio',
'direct': '1',
'rw': 'read',
'bs': '64k',
'iodepth': '1',
'numjobs': '1',
'loops': '200',
'output-format': 'json',
'status-interval': '60'
}
self.invoker = None
self.remote_host = None
self.id = None
def execute(self):
if self.invoker is None:
raise ValueError("No invoker has been set")
args = []
self.invoker.remote_host = self.remote_host
self.invoker.callback_id = self.fullname
if self.filename.startswith("/dev"):
self.options['size'] = "100%"
self.logger.debug(
"Profiling a device, using 100% of " + self.filename)
else:
self.options['size'] = self.default_filesize
self.logger.debug("Profiling a filesystem, using " +
self.default_filesize + " file")
self.options['filename'] = self.filename
self.setup()
for key, value in self.options.iteritems():
args.append('--' + key + "=" + value)
self.invoker.execute(args)
def terminate(self):
if self.invoker is not None:
self.invoker.terminate()
def setup(self):
pass
@property
def remote_host(self):
return str(self._remote_host)
@remote_host.setter
def remote_host(self, value):
self._remote_host = value
@property
def fullname(self):
return ("%s.%s.queue-depth.%s.block-size.%s.%s"
% (str(self.id),
self.__class__.__name__,
str(self.options['iodepth']),
str(self.options['bs']),
str(self.remote_host).replace(".", "-")))
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