78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
#
|
|
# Copyright(c) 2022 Intel Corporation
|
|
# SPDX-License-Identifier: BSD-3-Clause
|
|
#
|
|
|
|
import pytest
|
|
import time
|
|
|
|
from core.test_run_utils import TestRun
|
|
from test_utils.size import Size, Unit
|
|
from core.test_run import TestRun
|
|
from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
|
|
from test_tools.fio.fio import Fio
|
|
from test_tools.fio.fio_param import ReadWrite, IoEngine
|
|
from api.cas import casadm
|
|
from api.cas.cache_config import CacheMode, CleaningPolicy
|
|
from test_utils.os_utils import Udev
|
|
|
|
wait_time_s = 30
|
|
|
|
|
|
@pytest.mark.CI
|
|
@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
|
|
@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
|
|
def test_cleaning_policy():
|
|
"""
|
|
Title: test_cleaning_policy
|
|
description: | The test is to see if dirty data will be removed from the Cache
|
|
after changing the cleaning policy from NOP to one that expects a flush.
|
|
pass_criteria:
|
|
- Cache is successfully populated with dirty data
|
|
- Cleaning policy is changed successfully
|
|
- There is no dirty data after the policy change
|
|
"""
|
|
with TestRun.step("Prepare devices."):
|
|
cache_disk = TestRun.disks["cache"]
|
|
cache_disk.create_partitions([Size(1, Unit.GibiByte)])
|
|
cache_dev = cache_disk.partitions[0]
|
|
|
|
core_disk = TestRun.disks["core"]
|
|
core_disk.create_partitions([Size(1, Unit.GibiByte)])
|
|
core_dev = core_disk.partitions[0]
|
|
|
|
cache = casadm.start_cache(cache_dev, cache_mode=CacheMode.WB)
|
|
cache.set_cleaning_policy(CleaningPolicy.nop)
|
|
core = cache.add_core(core_dev)
|
|
Udev.disable()
|
|
|
|
with TestRun.step("Populate cache with dirty data."):
|
|
fio = (
|
|
Fio()
|
|
.create_command()
|
|
.size(Size(1, Unit.MiB))
|
|
.read_write(ReadWrite.randwrite)
|
|
.io_engine(IoEngine.libaio)
|
|
.block_size(Size(1, Unit.Blocks4096))
|
|
)
|
|
fio.add_job("core0").target(core.path)
|
|
fio.run()
|
|
|
|
if cache.get_dirty_blocks() <= Size.zero():
|
|
TestRun.fail("Cache does not contain dirty data.")
|
|
|
|
with TestRun.step(f"Change cleaning policy and wait up to {wait_time_s} for flush"):
|
|
cache.set_cleaning_policy(CleaningPolicy.acp)
|
|
t_end = time.time() + wait_time_s
|
|
while time.time() < t_end:
|
|
time.sleep(1)
|
|
if cache.get_dirty_blocks() == Size.zero():
|
|
TestRun.LOGGER.info(
|
|
f"Cache flushed after {round(time.time() - (t_end - wait_time_s), 2)} seconds."
|
|
)
|
|
break
|
|
|
|
with TestRun.step("Check if dirty data exists."):
|
|
if not cache.get_dirty_blocks() == Size.zero():
|
|
TestRun.fail("There is dirty data on cache after changing cleaning policy.")
|