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Merge pull request #1231 from mmichal10/fix-trim-eviction-test

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tests: fix test_trim_eviction
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Robert Baldyga 2022-06-20 11:11:08 +02:00 committed by GitHub
commit 57974faa1c
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1 changed files with 24 additions and 19 deletions
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43
test/functional/tests/io/trim/test_trim_eviction.py
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@ -1,5 +1,5 @@
#
# Copyright(c) 2020-2021 Intel Corporation
# Copyright(c) 2020-2022 Intel Corporation
# SPDX-License-Identifier: BSD-3-Clause
#
@ -11,7 +11,7 @@ from api.cas.cache_config import CacheMode, CacheLineSize, CleaningPolicy
from core.test_run import TestRun
from storage_devices.disk import DiskTypeSet, DiskType, DiskTypeLowerThan
from test_tools import fs_utils, disk_utils
from test_tools.ddrescue import Ddrescue
from test_tools.dd import Dd
from test_tools.disk_utils import Filesystem
from test_utils import os_utils
from test_utils.os_utils import Udev
@ -27,22 +27,22 @@ from test_utils.filesystem.file import File
@pytest.mark.parametrizex("cleaning", [CleaningPolicy.alru, CleaningPolicy.nop])
def test_trim_eviction(cache_mode, cache_line_size, filesystem, cleaning):
"""
title: Test verifying if trim requests do not cause eviction on CAS device.
description: |
When trim requests enabled and files are being added and removed from CAS device,
there is no eviction (no reads from cache).
pass_criteria:
- Reads from cache device are the same before and after removing test file.
title: Test verifying if trim requests do not cause eviction on CAS device.
description: |
When trim requests enabled and files are being added and removed from CAS device,
there is no eviction (no reads from cache).
pass_criteria:
- Reads from cache device are the same before and after removing test file.
"""
mount_point = "/mnt"
test_file_path = os.path.join(mount_point, "test_file")
with TestRun.step("Prepare devices."):
cache_disk = TestRun.disks['cache']
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 = TestRun.disks["core"]
core_disk.create_partitions([Size(1, Unit.GibiByte)])
core_dev = core_disk.partitions[0]
@ -76,7 +76,9 @@ def test_trim_eviction(cache_mode, cache_line_size, filesystem, cleaning):
with TestRun.step("Remove file and create a new one."):
cache_iostats_before = cache_dev.get_io_stats()
data_reads_before = cache.get_io_class_statistics(io_class_id=0).block_stats.cache.reads
metadata_reads_before = cache.get_io_class_statistics(io_class_id=1).block_stats.cache.reads
metadata_reads_before = cache.get_io_class_statistics(
io_class_id=1
).block_stats.cache.reads
test_file.remove()
os_utils.sync()
os_utils.drop_caches()
@ -106,16 +108,19 @@ def test_trim_eviction(cache_mode, cache_line_size, filesystem, cleaning):
)
else:
TestRun.LOGGER.info(
"Number of reads from cache before and after removing test file is the same.")
"Number of reads from cache before and after removing test file is the same."
)
def create_file_with_ddrescue(core_dev, test_file_path):
ddrescue = Ddrescue() \
.block_size(Size(1, Unit.Blocks4096)) \
.size(core_dev.size * 0.9) \
.synchronous() \
.source("/dev/urandom") \
.destination(test_file_path)
ddrescue.run()
dd = (
Dd()
.block_size(Size(1, Unit.MebiByte))
.count(900)
.input("/dev/urandom")
.output(test_file_path)
.oflag("sync")
)
dd.run()
return File(test_file_path)