90 lines
3.2 KiB
Python
90 lines
3.2 KiB
Python
#
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# Copyright(c) 2022 Intel Corporation
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# Copyright(c) 2024-2025 Huawei Technologies Co., Ltd.
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# SPDX-License-Identifier: BSD-3-Clause
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#
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import pytest
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import time
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from core.test_run_utils import TestRun
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from storage_devices.device import Device
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from type_def.size import Size, Unit
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from core.test_run import TestRun
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from storage_devices.disk import DiskType, DiskTypeSet, DiskTypeLowerThan
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from test_tools.fio.fio import Fio
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from test_tools.fio.fio_param import ReadWrite, IoEngine
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from api.cas import casadm
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from api.cas.cache_config import CacheMode, CleaningPolicy
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from test_tools.udev import Udev
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@pytest.mark.CI
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@pytest.mark.require_disk("cache", DiskTypeSet([DiskType.optane, DiskType.nand]))
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@pytest.mark.require_disk("core", DiskTypeLowerThan("cache"))
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def test_cleaning_policy():
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"""
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title: Test for manual cache and core flushing
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description: |
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The test is to see if dirty data will be removed from the cache
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or core after using the casadm command with the corresponding parameter.
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pass_criteria:
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- Cache and core are filled with dirty data.
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- After cache and core flush dirty data are cleared.
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"""
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cache_id = 1
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with TestRun.step("Prepare devices."):
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cache_disk = TestRun.disks["cache"]
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cache_disk.create_partitions([Size(1, Unit.GibiByte)])
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cache_dev = cache_disk.partitions[0]
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core_disk = TestRun.disks["core"]
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core_disk.create_partitions([Size(1, Unit.GibiByte)])
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core_dev = core_disk.partitions[0]
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with TestRun.step("Disable udev"):
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Udev.disable()
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with TestRun.step("Start cache and set cleaning policy to NOP"):
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cache = casadm.start_cache(cache_dev, cache_mode=CacheMode.WB)
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core = cache.add_core(core_dev)
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cache.set_cleaning_policy(CleaningPolicy.nop)
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with TestRun.step("Populate cache with dirty data."):
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write_dirty_data(Size(1, Unit.MiB), core, cache_id)
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if cache.get_dirty_blocks() <= Size.zero():
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TestRun.fail("Failed to populate Cache with dirty data")
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if core.get_dirty_blocks() <= Size.zero():
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TestRun.fail("There is no dirty data on Core")
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with TestRun.step("Perform casadm command and check whether dirty data is cleared from core"):
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core.flush_core()
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if core.get_dirty_blocks() > Size.zero():
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TestRun.fail("Dirty data has not been cleaned from core")
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with TestRun.step("Populate cache with dirty data again."):
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write_dirty_data(Size(1, Unit.MiB), core, cache_id)
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if core.get_dirty_blocks() <= Size.zero():
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TestRun.fail("Cache has not been populated with dirty data.")
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with TestRun.step("Perform casadm command to flush cache"):
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cache.flush_cache()
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with TestRun.step("Check if dirty data are cleared in stats"):
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if cache.get_dirty_blocks() > Size.zero():
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TestRun.fail("Cache contain dirty data.")
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def write_dirty_data(size: Size, core: Device, dev_id: int):
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fio = (
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Fio()
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.create_command()
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.size(size)
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.read_write(ReadWrite.randwrite)
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.io_engine(IoEngine.libaio)
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.block_size(Size(1, Unit.Blocks4096))
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)
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fio.add_job(f"core{dev_id}").target(core.path)
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fio.run()
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time.sleep(1)
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