Merge pull request #180 from Deixx/ioclass-export

Test for exporting IO class configuration + IoClass
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Katarzyna Łapińska 2019-11-28 11:35:04 +01:00 committed by GitHub
commit fd5824cacd
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4 changed files with 235 additions and 12 deletions

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@ -3,24 +3,142 @@
# SPDX-License-Identifier: BSD-3-Clause-Clear
#
import enum
import functools
import random
import re
import string
from datetime import timedelta
from packaging import version
from core.test_run import TestRun
from test_tools import fs_utils
from test_utils import os_utils
from test_utils.generator import random_string
default_config_file_path = "/tmp/opencas_ioclass.conf"
MAX_IO_CLASS_ID = 32
MAX_IO_CLASS_PRIORITY = 255
MAX_CLASSIFICATION_DELAY = timedelta(seconds=6)
IO_CLASS_CONFIG_HEADER = "IO class id,IO class name,Eviction priority,Allocation"
@functools.total_ordering
class IoClass:
def __init__(self, class_id: int, rule: str = '', priority: int = None,
allocation: bool = True):
self.id = class_id
self.rule = rule
self.priority = priority
self.allocation = allocation
def __str__(self):
return (f'{self.id},{self.rule},{"" if self.priority is None else self.priority}'
f',{int(self.allocation)}')
def __eq__(self, other):
return ((self.id, self.rule, self.priority, self.allocation)
== (other.id, other.rule, other.priority, other.allocation))
def __lt__(self, other):
return ((self.id, self.rule, self.priority, self.allocation)
< (other.id, other.rule, other.priority, other.allocation))
@staticmethod
def from_string(ioclass_str: str):
parts = [part.strip() for part in re.split('[,|]', ioclass_str.replace('', ''))]
return IoClass(
class_id=int(parts[0]),
rule=parts[1],
priority=int(parts[2]),
allocation=parts[3] in ['1', 'YES'])
@staticmethod
def list_to_csv(ioclass_list: [], add_default_rule: bool = True):
list_copy = ioclass_list[:]
if add_default_rule and not len([c for c in list_copy if c.id == 0]):
list_copy.insert(0, IoClass.default())
list_copy.insert(0, IO_CLASS_CONFIG_HEADER)
return '\n'.join(str(c) for c in list_copy)
@staticmethod
def csv_to_list(csv: str):
ioclass_list = []
for line in csv.splitlines():
if line.strip() == IO_CLASS_CONFIG_HEADER:
continue
ioclass_list.append(IoClass.from_string(line))
return ioclass_list
@staticmethod
def save_list_to_config_file(ioclass_list: [],
add_default_rule: bool = True,
ioclass_config_path: str = default_config_file_path):
TestRun.LOGGER.info(f"Creating config file {ioclass_config_path}")
fs_utils.write_file(ioclass_config_path,
IoClass.list_to_csv(ioclass_list, add_default_rule))
@staticmethod
def default(priority: int = 255, allocation: bool = True):
return IoClass(0, 'unclassified', priority, allocation)
@staticmethod
def compare_ioclass_lists(list1: [], list2: []):
return sorted(list1) == sorted(list2)
@staticmethod
def generate_random_ioclass_list(count: int, max_priority: int = MAX_IO_CLASS_PRIORITY):
random_list = [IoClass.default(priority=random.randint(0, max_priority),
allocation=bool(random.randint(0, 1)))]
for i in range(1, count):
random_list.append(IoClass(i, priority=random.randint(0, max_priority),
allocation=bool(random.randint(0, 1)))
.set_random_rule())
return random_list
def set_random_rule(self):
rules = ["metadata", "direct", "file_size", "directory", "io_class", "extension", "lba",
"pid", "process_name", "file_offset", "request_size"]
if os_utils.get_kernel_version() >= version.Version("4.13"):
rules.append("wlth")
rule = random.choice(rules)
self.rule = IoClass.add_random_params(rule)
return self
@staticmethod
def add_random_params(rule: str):
if rule == "directory":
allowed_chars = string.ascii_letters + string.digits + '/'
rule += f":/{random_string(random.randint(1, 40), allowed_chars)}"
elif rule in ["file_size", "lba", "pid", "file_offset", "request_size", "wlth"]:
rule += f":{Operator(random.randrange(len(Operator))).name}:{random.randrange(1000000)}"
elif rule == "io_class":
rule += f":{random.randrange(MAX_IO_CLASS_PRIORITY + 1)}"
elif rule in ["extension", "process_name"]:
rule += f":{random_string(random.randint(1, 10))}"
if random.randrange(2):
rule += "&done"
return rule
class Operator(enum.Enum):
eq = 0
gt = 1
ge = 2
lt = 3
le = 4
# TODO: replace below methods with methods using IoClass
def create_ioclass_config(
add_default_rule: bool = True, ioclass_config_path: str = default_config_file_path
add_default_rule: bool = True, ioclass_config_path: str = default_config_file_path
):
TestRun.LOGGER.info(f"Creating config file {ioclass_config_path}")
output = TestRun.executor.run(
'echo "IO class id,IO class name,Eviction priority,Allocation" '
+ f"> {ioclass_config_path}"
f'echo {IO_CLASS_CONFIG_HEADER} > {ioclass_config_path}'
)
if output.exit_code != 0:
raise Exception(
@ -49,11 +167,11 @@ def remove_ioclass_config(ioclass_config_path: str = default_config_file_path):
def add_ioclass(
ioclass_id: int,
rule: str,
eviction_priority: int,
allocation: bool,
ioclass_config_path: str = default_config_file_path,
ioclass_id: int,
rule: str,
eviction_priority: int,
allocation: bool,
ioclass_config_path: str = default_config_file_path,
):
new_ioclass = f"{ioclass_id},{rule},{eviction_priority},{int(allocation)}"
TestRun.LOGGER.info(
@ -89,7 +207,7 @@ def get_ioclass(ioclass_id: int, ioclass_config_path: str = default_config_file_
def remove_ioclass(
ioclass_id: int, ioclass_config_path: str = default_config_file_path
ioclass_id: int, ioclass_config_path: str = default_config_file_path
):
TestRun.LOGGER.info(
f"Removing rule no.{ioclass_id} " + f"from config file {ioclass_config_path}"

@ -1 +1 @@
Subproject commit 547fcaa5fb0cdc3ce5696785ce7d7ced81a85005
Subproject commit a2f3d6631e6c21cdea238bc2a53851655d498ff8

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@ -6,7 +6,6 @@
from api.cas import casadm
from api.cas import ioclass_config
from api.cas.cache_config import CacheMode, CleaningPolicy
from storage_devices.disk import DiskType
from core.test_run import TestRun
from test_utils.size import Size, Unit

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@ -0,0 +1,106 @@
#
# Copyright(c) 2019 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause-Clear
#
import pytest
from api.cas import casadm, ioclass_config
from api.cas.cache_config import CacheMode
from api.cas.casadm_params import OutputFormat
from api.cas.ioclass_config import IoClass
from core.test_run import TestRun
from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
from test_tools import fs_utils
from test_utils.size import Size, Unit
ioclass_config_path = "/tmp/opencas_ioclass.conf"
@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
@pytest.mark.parametrize("cache_mode", CacheMode)
def test_ioclass_export_configuration(cache_mode):
"""
title: Export IO class configuration to a file
description: |
Test CAS ability to create a properly formatted file with current IO class configuration
pass_criteria:
- CAS default IO class configuration contains unclassified class only
- CAS properly imports previously exported configuration
"""
with TestRun.LOGGER.step(f"Test prepare"):
cache, core = prepare(cache_mode)
saved_config_path = "/tmp/opencas_saved.conf"
default_list = [IoClass.default()]
with TestRun.LOGGER.step(f"Check IO class configuration (should contain only default class)"):
csv = casadm.list_io_classes(cache.cache_id, OutputFormat.csv).stdout
if not IoClass.compare_ioclass_lists(IoClass.csv_to_list(csv), default_list):
TestRun.LOGGER.error("Default configuration does not match expected\n"
f"Current:\n{csv}\n"
f"Expected:{IoClass.list_to_csv(default_list)}")
with TestRun.LOGGER.step("Create and load configuration file for 33 IO classes "
"with random names, allocation and priority values"):
random_list = IoClass.generate_random_ioclass_list(33)
IoClass.save_list_to_config_file(random_list, ioclass_config_path=ioclass_config_path)
casadm.load_io_classes(cache.cache_id, ioclass_config_path)
with TestRun.LOGGER.step("Display and export IO class configuration - displayed configuration "
"should be the same as created"):
TestRun.executor.run(
f"{casadm.list_io_classes_cmd(str(cache.cache_id), OutputFormat.csv.name)}"
f" > {saved_config_path}")
csv = fs_utils.read_file(saved_config_path)
if not IoClass.compare_ioclass_lists(IoClass.csv_to_list(csv), random_list):
TestRun.LOGGER.error("Exported configuration does not match expected\n"
f"Current:\n{csv}\n"
f"Expected:{IoClass.list_to_csv(random_list)}")
with TestRun.LOGGER.step("Stop Intel CAS"):
casadm.stop_cache(cache.cache_id)
with TestRun.LOGGER.step("Start cache and add core"):
cache = casadm.start_cache(cache.cache_device, force=True)
casadm.add_core(cache, core.core_device)
with TestRun.LOGGER.step("Check IO class configuration (should contain only default class)"):
csv = casadm.list_io_classes(cache.cache_id, OutputFormat.csv).stdout
if not IoClass.compare_ioclass_lists(IoClass.csv_to_list(csv), default_list):
TestRun.LOGGER.error("Default configuration does not match expected\n"
f"Current:\n{csv}\n"
f"Expected:{IoClass.list_to_csv(default_list)}")
with TestRun.LOGGER.step("Load exported configuration file for 33 IO classes"):
casadm.load_io_classes(cache.cache_id, saved_config_path)
with TestRun.LOGGER.step("Display IO class configuration - should be the same as created"):
csv = casadm.list_io_classes(cache.cache_id, OutputFormat.csv).stdout
if not IoClass.compare_ioclass_lists(IoClass.csv_to_list(csv), random_list):
TestRun.LOGGER.error("Exported configuration does not match expected\n"
f"Current:\n{csv}\n"
f"Expected:{IoClass.list_to_csv(random_list)}")
with TestRun.LOGGER.step(f"Test cleanup"):
fs_utils.remove(saved_config_path)
def prepare(cache_mode: CacheMode = None):
ioclass_config.remove_ioclass_config()
cache_device = TestRun.disks['cache']
core_device = TestRun.disks['core']
cache_device.create_partitions([Size(150, Unit.MebiByte)])
core_device.create_partitions([Size(300, Unit.MebiByte)])
cache_device = cache_device.partitions[0]
core_device = core_device.partitions[0]
TestRun.LOGGER.info(f"Starting cache")
cache = casadm.start_cache(cache_device, cache_mode=cache_mode, force=True)
TestRun.LOGGER.info(f"Adding core device")
core = casadm.add_core(cache, core_dev=core_device)
return cache, core