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tests: fault_injection: Disable udev, purge cache and reset stats

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Improve accounting precision by eliminating noise.

Signed-off-by: Robert Baldyga <robert.baldyga@huawei.com>
This commit is contained in:
Robert Baldyga 2025-04-01 18:08:00 +02:00
parent 1f89ce7cfc
commit 783e0229a5
2 changed files with 46 additions and 2 deletions
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6
test/functional/tests/fault_injection/test_cache_insert_error.py
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@ -1,6 +1,6 @@
#
# Copyright(c) 2019-2022 Intel Corporation
# Copyright(c) 2024 Huawei Technologies Co., Ltd.
# Copyright(c) 2024-2025 Huawei Technologies Co., Ltd.
# SPDX-License-Identifier: BSD-3-Clause
#
@ -245,4 +245,8 @@ def prepare_configuration(cache_mode, cache_line_size):
with TestRun.step("Adding core device"):
core = cache.add_core(core_dev=core_device.partitions[0])
with TestRun.step("Purge cache and reset statistics"):
cache.purge_cache()
cache.reset_counters()
return cache, core, core_device.partitions[0]

42
test/functional/tests/fault_injection/test_error_device_as_cache.py
View File

@ -1,5 +1,5 @@
#
# Copyright(c) 2024 Huawei Technologies Co., Ltd.
# Copyright(c) 2024-2025 Huawei Technologies Co., Ltd.
# SPDX-License-Identifier: BSD-3-Clause
#
@ -22,6 +22,7 @@ from api.cas.cache_config import (
)
from storage_devices.disk import DiskTypeSet, DiskType
from test_utils.io_stats import IoStats
from test_tools.udev import Udev
from type_def.size import Size, Unit
@ -63,6 +64,13 @@ def test_error_device_as_cache_clean_wt(cache_line_size):
with TestRun.step(f"Add core"):
core = cache.add_core(core_dev=core_device.partitions[0])
with TestRun.step("Disable udev"):
Udev.disable()
with TestRun.step("Purge cache and reset statistics"):
cache.purge_cache()
cache.reset_counters()
with TestRun.step("Run fio against core to fill it with pattern"):
fio = (
Fio()
@ -90,11 +98,17 @@ def test_error_device_as_cache_clean_wt(cache_line_size):
metadata_size = cache.get_metadata_size_on_disk() + Size(1, Unit.MiB)
cache.stop()
with TestRun.step("Enable udev"):
Udev.enable()
with TestRun.step("Enable errors on cache device (after metadata area)"):
error_device.change_table(
error_table(start_lba=metadata_size, stop_lba=cache_part.size).fill_gaps(cache_part)
)
with TestRun.step("Disable udev"):
Udev.disable()
with TestRun.step("Load cache and reset counters"):
cache = casadm.load_cache(error_device)
cache.reset_counters()
@ -175,6 +189,13 @@ def test_error_device_as_cache_clean_wa(cache_line_size):
with TestRun.step(f"Add core"):
core = cache.add_core(core_dev=core_device.partitions[0])
with TestRun.step("Disable udev"):
Udev.disable()
with TestRun.step("Purge cache and reset statistics"):
cache.purge_cache()
cache.reset_counters()
with TestRun.step("Run fio against core to fill it with pattern"):
fio = (
Fio()
@ -200,11 +221,17 @@ def test_error_device_as_cache_clean_wa(cache_line_size):
metadata_size = cache.get_metadata_size_on_disk() + Size(1, Unit.MiB)
cache.stop()
with TestRun.step("Enable udev"):
Udev.enable()
with TestRun.step("Enable errors on cache device (after metadata area)"):
error_device.change_table(
error_table(start_lba=metadata_size, stop_lba=cache_part.size).fill_gaps(cache_part)
)
with TestRun.step("Disable udev"):
Udev.disable()
with TestRun.step("Load cache and reset counters"):
cache = casadm.load_cache(error_device)
cache.reset_counters()
@ -288,6 +315,13 @@ def test_error_device_as_cache_dirty(cache_mode, cache_line_size):
with TestRun.step(f"Add core"):
cores = [cache.add_core(core_dev=core) for core in core_parts]
with TestRun.step("Disable udev"):
Udev.disable()
with TestRun.step("Purge cache and reset statistics"):
cache.purge_cache()
cache.reset_counters()
with TestRun.step("Run io against the first core to fill it with pattern"):
fio = (
Fio()
@ -314,12 +348,18 @@ def test_error_device_as_cache_dirty(cache_mode, cache_line_size):
with TestRun.step("Stop cache"):
cache.stop(no_data_flush=True)
with TestRun.step("Enable udev"):
Udev.enable()
with TestRun.step("Enable errors on cache device (after metadata area)"):
metadata_size = cache.get_metadata_size_on_disk() + Size(1, Unit.MiB)
error_device.change_table(
error_table(start_lba=metadata_size, stop_lba=cache_part.size).fill_gaps(cache_part)
)
with TestRun.step("Disable udev"):
Udev.disable()
with TestRun.step("Load cache and reset counters"):
cache = casadm.load_cache(error_device)
cache.reset_counters()