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##############################################################################
# Copyright (c) 2015 Huawei Technologies Co.,Ltd and other.
#
# 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
##############################################################################
from __future__ import absolute_import
from __future__ import print_function
import logging
import os
import re
import time
import pkg_resources
from oslo_serialization import jsonutils
import yardstick.ssh as ssh
from yardstick.benchmark.scenarios import base
LOG = logging.getLogger(__name__)
LOG.setLevel(logging.DEBUG)
class Cyclictest(base.Scenario):
"""Execute cyclictest benchmark on guest vm
Parameters
affinity - run thread #N on processor #N, if possible
type: int
unit: na
default: 1
interval - base interval of thread
type: int
unit: us
default: 1000
loops - number of loops, 0 for endless
type: int
unit: na
default: 1000
priority - priority of highest prio thread
type: int
unit: na
default: 99
threads - number of threads
type: int
unit: na
default: 1
histogram - dump a latency histogram to stdout after the run
here set the max time to be tracked
type: int
unit: ms
default: 90
Read link below for more fio args description:
https://rt.wiki.kernel.org/index.php/Cyclictest
"""
__scenario_type__ = "Cyclictest"
TARGET_SCRIPT = "cyclictest_benchmark.bash"
WORKSPACE = "/root/workspace/"
REBOOT_CMD_PATTERN = r";\s*reboot\b"
def __init__(self, scenario_cfg, context_cfg):
self.scenario_cfg = scenario_cfg
self.context_cfg = context_cfg
self.setup_done = False
def _put_files(self, client):
setup_options = self.scenario_cfg["setup_options"]
rpm_dir = setup_options["rpm_dir"]
script_dir = setup_options["script_dir"]
image_dir = setup_options["image_dir"]
LOG.debug("Send RPMs from %s to workspace %s",
rpm_dir, self.WORKSPACE)
client.put(rpm_dir, self.WORKSPACE, recursive=True)
LOG.debug("Send scripts from %s to workspace %s",
script_dir, self.WORKSPACE)
client.put(script_dir, self.WORKSPACE, recursive=True)
LOG.debug("Send guest image from %s to workspace %s",
image_dir, self.WORKSPACE)
client.put(image_dir, self.WORKSPACE, recursive=True)
def _connect_host(self):
host = self.context_cfg["host"]
self.host = ssh.SSH.from_node(host, defaults={"user": "root"})
self.host.wait(timeout=600)
def _connect_guest(self):
host = self.context_cfg["host"]
# why port 5555?
self.guest = ssh.SSH.from_node(host,
defaults={
"user": "root", "ssh_port": 5555
})
self.guest.wait(timeout=600)
def _run_setup_cmd(self, client, cmd):
LOG.debug("Run cmd: %s", cmd)
status, stdout, stderr = client.execute(cmd)
if status:
if re.search(self.REBOOT_CMD_PATTERN, cmd):
LOG.debug("Error on reboot")
else:
raise RuntimeError(stderr)
def _run_host_setup_scripts(self, scripts):
setup_options = self.scenario_cfg["setup_options"]
script_dir = os.path.basename(setup_options["script_dir"])
for script in scripts:
cmd = "cd %s/%s; export PATH=./:$PATH; %s" %\
(self.WORKSPACE, script_dir, script)
self._run_setup_cmd(self.host, cmd)
if re.search(self.REBOOT_CMD_PATTERN, cmd):
time.sleep(3)
self._connect_host()
def _run_guest_setup_scripts(self, scripts):
setup_options = self.scenario_cfg["setup_options"]
script_dir = os.path.basename(setup_options["script_dir"])
for script in scripts:
cmd = "cd %s/%s; export PATH=./:$PATH; %s" %\
(self.WORKSPACE, script_dir, script)
self._run_setup_cmd(self.guest, cmd)
if re.search(self.REBOOT_CMD_PATTERN, cmd):
time.sleep(3)
self._connect_guest()
def setup(self):
"""scenario setup"""
setup_options = self.scenario_cfg["setup_options"]
host_setup_seqs = setup_options["host_setup_seqs"]
guest_setup_seqs = setup_options["guest_setup_seqs"]
self._connect_host()
self._put_files(self.host)
self._run_host_setup_scripts(host_setup_seqs)
self._connect_guest()
self._put_files(self.guest)
self._run_guest_setup_scripts(guest_setup_seqs)
# copy script to host
self.target_script = pkg_resources.resource_filename(
"yardstick.benchmark.scenarios.compute",
Cyclictest.TARGET_SCRIPT)
self.guest._put_file_shell(
self.target_script, '~/cyclictest_benchmark.sh')
self.setup_done = True
def run(self, result):
"""execute the benchmark"""
default_args = "-m -n -q --notrace"
if not self.setup_done:
self.setup()
options = self.scenario_cfg["options"]
affinity = options.get("affinity", 1)
breaktrace = options.get("breaktrace", 1000)
interval = options.get("interval", 1000)
priority = options.get("priority", 99)
loops = options.get("loops", 1000)
threads = options.get("threads", 1)
histogram = options.get("histogram", 90)
cmd_args = "-a %s -b %s -i %s -p %s -l %s -t %s -h %s %s" \
% (affinity, breaktrace, interval, priority, loops,
threads, histogram, default_args)
cmd = "bash cyclictest_benchmark.sh %s" % (cmd_args)
LOG.debug("Executing command: %s", cmd)
status, stdout, stderr = self.guest.execute(cmd)
if status:
raise RuntimeError(stderr)
result.update(jsonutils.loads(stdout))
if "sla" in self.scenario_cfg:
sla_error = ""
for t, latency in result.items():
if 'max_%s_latency' % t not in self.scenario_cfg['sla']:
continue
sla_latency = int(self.scenario_cfg['sla'][
'max_%s_latency' % t])
latency = int(latency)
if latency > sla_latency:
sla_error += "%s latency %d > sla:max_%s_latency(%d); " % \
(t, latency, t, sla_latency)
assert sla_error == "", sla_error
def _test(): # pragma: no cover
"""internal test function"""
key_filename = pkg_resources.resource_filename("yardstick.resources",
"files/yardstick_key")
ctx = {
"host": {
"ip": "10.229.47.137",
"user": "root",
"key_filename": key_filename
}
}
logger = logging.getLogger("yardstick")
logger.setLevel(logging.DEBUG)
options = {
"affinity": 2,
"breaktrace": 1000,
"interval": 100,
"priority": 88,
"loops": 10000,
"threads": 2,
"histogram": 80
}
sla = {
"max_min_latency": 100,
"max_avg_latency": 500,
"max_max_latency": 1000,
}
args = {
"options": options,
"sla": sla
}
result = {}
cyclictest = Cyclictest(args, ctx)
cyclictest.run(result)
print(result)
if __name__ == '__main__': # pragma: no cover
_test()
|
