331 lines
14 KiB
Python
331 lines
14 KiB
Python
#
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# Copyright(c) 2019-2020 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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#
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import random
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import pytest
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from api.cas import casadm
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from api.cas import ioclass_config
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from api.cas.cache_config import CleaningPolicy, CacheMode, CacheLineSize
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from api.cas.casadm import StatsFilter
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from api.cas.cli_messages import (
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check_stderr_msg,
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get_stats_ioclass_id_not_configured,
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get_stats_ioclass_id_out_of_range
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)
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from api.cas.statistics import (
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config_stats_ioclass, usage_stats, request_stats, block_stats_core, block_stats_cache
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)
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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.disk_utils import Filesystem
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from test_utils.filesystem.file import File
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from test_utils.os_utils import sync, Udev
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from test_utils.output import CmdException
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from test_utils.size import Size, Unit
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IoClass = ioclass_config.IoClass
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mountpoint = "/tmp/cas1-1"
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cache_id = 1
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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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@pytest.mark.parametrize("random_cls", [random.choice(list(CacheLineSize))])
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def test_ioclass_stats_basic(random_cls):
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"""
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title: Basic test for retrieving IO class statistics.
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description: |
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Check if statistics are retrieved only for configured IO classes.
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pass_criteria:
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- Statistics are retrieved for configured IO classes.
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- Error is displayed when retrieving statistics for non-configured IO class.
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- Error is displayed when retrieving statistics for out of range IO class id.
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"""
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min_ioclass_id = 11
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max_ioclass_id = 21
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with TestRun.step("Test prepare"):
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prepare(random_cls)
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with TestRun.step("Prepare IO class config file"):
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ioclass_list = []
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for class_id in range(min_ioclass_id, max_ioclass_id):
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ioclass_list.append(IoClass(
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class_id=class_id,
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rule=f"file_size:le:{4096 * class_id}&done",
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priority=22
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))
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IoClass.save_list_to_config_file(ioclass_list, True)
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with TestRun.step("Load IO class config file"):
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casadm.load_io_classes(cache_id, file=ioclass_config.default_config_file_path)
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with TestRun.step("Try retrieving IO class stats for all allowed id values "
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"and one out of range id"):
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for class_id in range(ioclass_config.MAX_IO_CLASS_ID + 2):
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out_of_range = " out of range" if class_id > ioclass_config.MAX_IO_CLASS_ID else ""
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with TestRun.group(f"Checking{out_of_range} IO class id {class_id}..."):
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expected = class_id == 0 or class_id in range(min_ioclass_id, max_ioclass_id)
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try:
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casadm.print_statistics(
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cache_id=cache_id,
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io_class_id=class_id,
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per_io_class=True)
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if not expected:
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TestRun.LOGGER.error(
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f"Stats retrieved for not configured IO class {class_id}")
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except CmdException as e:
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if expected:
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TestRun.LOGGER.error(f"Stats not retrieved for IO class id: {class_id}")
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elif class_id <= ioclass_config.MAX_IO_CLASS_ID:
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if not check_stderr_msg(e.output, get_stats_ioclass_id_not_configured):
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TestRun.LOGGER.error(
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f"Wrong message for unused IO class id: {class_id}")
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elif not check_stderr_msg(e.output, get_stats_ioclass_id_out_of_range):
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TestRun.LOGGER.error(
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f"Wrong message for out of range IO class id: {class_id}")
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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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@pytest.mark.parametrize("random_cls", [random.choice(list(CacheLineSize))])
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def test_ioclass_stats_sum(random_cls):
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"""
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title: Test for sum of IO class statistics.
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description: |
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Check if statistics for configured IO classes sum up to cache/core statistics.
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pass_criteria:
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- Per class cache IO class statistics sum up to cache statistics.
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- Per class core IO class statistics sum up to core statistics.
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"""
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min_ioclass_id = 1
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max_ioclass_id = 11
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file_size_base = Unit.Blocks4096.value
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with TestRun.step("Test prepare"):
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caches, cores = prepare(random_cls)
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cache, core = caches[0], cores[0]
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with TestRun.step("Prepare IO class config file"):
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ioclass_list = []
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for class_id in range(min_ioclass_id, max_ioclass_id):
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ioclass_list.append(IoClass(
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class_id=class_id,
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rule=f"file_size:le:{file_size_base * class_id}&done",
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priority=22
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))
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IoClass.save_list_to_config_file(ioclass_list, True)
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with TestRun.step("Load IO class config file"):
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cache.load_io_class(ioclass_config.default_config_file_path)
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with TestRun.step("Generate files with particular sizes in temporary folder"):
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files_list = []
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for class_id in range(min_ioclass_id, max_ioclass_id):
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path = f"/tmp/test_file_{file_size_base * class_id}"
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File.create_file(path)
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f = File(path)
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f.padding(Size(file_size_base * class_id, Unit.Byte))
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files_list.append(f)
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with TestRun.step("Copy files to mounted core"):
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core.mount(mountpoint)
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for f in files_list:
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TestRun.LOGGER.info(f"Copying file {f.name} to mounted core")
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f.copy(mountpoint)
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sync()
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# To prevent stats pollution by filesystem requests, umount core device
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# after files are copied
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core.unmount()
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sync()
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with TestRun.step("Check if per class cache IO class statistics sum up to cache statistics"):
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# Name of stats, which should not be compared
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not_compare_stats = ["clean", "occupancy"]
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ioclass_id_list = list(range(min_ioclass_id, max_ioclass_id))
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# Append default IO class id
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ioclass_id_list.append(0)
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cache_stats = cache.get_statistics_flat(
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stat_filter=[StatsFilter.usage, StatsFilter.req, StatsFilter.blk]
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)
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for ioclass_id in ioclass_id_list:
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ioclass_stats = cache.get_statistics_flat(
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stat_filter=[StatsFilter.usage, StatsFilter.req, StatsFilter.blk],
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io_class_id=ioclass_id,
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)
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for stat_name in cache_stats:
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if stat_name in not_compare_stats:
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continue
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cache_stats[stat_name] -= ioclass_stats[stat_name]
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for stat_name in cache_stats:
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if stat_name in not_compare_stats:
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continue
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stat_val = (
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cache_stats[stat_name].get_value()
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if isinstance(cache_stats[stat_name], Size)
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else cache_stats[stat_name]
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)
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if stat_val != 0:
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TestRun.LOGGER.error(f"{stat_name} diverged for cache!\n")
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with TestRun.step("Check if per class core IO class statistics sum up to core statistics"):
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core_stats = core.get_statistics_flat(
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stat_filter=[StatsFilter.usage, StatsFilter.req, StatsFilter.blk]
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)
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for ioclass_id in ioclass_id_list:
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ioclass_stats = core.get_statistics_flat(
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stat_filter=[StatsFilter.usage, StatsFilter.req, StatsFilter.blk],
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io_class_id=ioclass_id,
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)
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for stat_name in core_stats:
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if stat_name in not_compare_stats:
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continue
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core_stats[stat_name] -= ioclass_stats[stat_name]
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for stat_name in core_stats:
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if stat_name in not_compare_stats:
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continue
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stat_val = (
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core_stats[stat_name].get_value()
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if isinstance(core_stats[stat_name], Size)
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else core_stats[stat_name]
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)
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if stat_val != 0:
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TestRun.LOGGER.error(f"{stat_name} diverged for core!\n")
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with TestRun.step("Test cleanup"):
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for f in files_list:
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f.remove()
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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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@pytest.mark.parametrize("stat_filter", [StatsFilter.req, StatsFilter.usage, StatsFilter.conf,
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StatsFilter.blk])
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@pytest.mark.parametrize("per_core", [True, False])
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@pytest.mark.parametrize("random_cls", [random.choice(list(CacheLineSize))])
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def test_ioclass_stats_sections(stat_filter, per_core, random_cls):
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"""
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title: Test for cache/core IO class statistics sections.
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description: |
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Check if IO class statistics sections for cache/core print all required entries and
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no additional ones.
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pass_criteria:
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- Section statistics contain all required entries.
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- Section statistics do not contain any additional entries.
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"""
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with TestRun.step("Test prepare"):
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caches, cores = prepare(random_cls, cache_count=4, cores_per_cache=3)
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with TestRun.step(f"Validate displayed {stat_filter.name} statistics for default IO class for "
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f"{'cores' if per_core else 'caches'}"):
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for cache in caches:
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with TestRun.group(f"Cache {cache.cache_id}"):
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for core in cache.get_core_devices():
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if per_core:
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TestRun.LOGGER.info(f"Core {core.cache_id}-{core.core_id}")
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statistics = (
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core.get_statistics_flat(
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io_class_id=0, stat_filter=[stat_filter]) if per_core
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else cache.get_statistics_flat(
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io_class_id=0, stat_filter=[stat_filter]))
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validate_statistics(statistics, stat_filter, per_core)
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if not per_core:
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break
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with TestRun.step("Load random IO class configuration for each cache"):
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for cache in caches:
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random_list = IoClass.generate_random_ioclass_list(ioclass_config.MAX_IO_CLASS_ID + 1)
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IoClass.save_list_to_config_file(random_list, add_default_rule=False)
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cache.load_io_class(ioclass_config.default_config_file_path)
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with TestRun.step(f"Validate displayed {stat_filter.name} statistics for every configured IO "
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f"class for all {'cores' if per_core else 'caches'}"):
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for cache in caches:
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with TestRun.group(f"Cache {cache.cache_id}"):
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for core in cache.get_core_devices():
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core_info = f"Core {core.cache_id}-{core.core_id} ," if per_core else ""
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for class_id in range(ioclass_config.MAX_IO_CLASS_ID + 1):
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with TestRun.group(core_info + f"IO class id {class_id}"):
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statistics = (
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core.get_statistics_flat(class_id, [stat_filter]) if per_core
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else cache.get_statistics_flat(class_id, [stat_filter]))
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validate_statistics(statistics, stat_filter, per_core)
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if stat_filter == StatsFilter.conf: # no percentage statistics for conf
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continue
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statistics_percents = (
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core.get_statistics_flat(
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class_id, [stat_filter], percentage_val=True) if per_core
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else cache.get_statistics_flat(
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class_id, [stat_filter], percentage_val=True))
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validate_statistics(statistics_percents, stat_filter, per_core)
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if not per_core:
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break
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def get_checked_statistics(stat_filter: StatsFilter, per_core: bool):
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if stat_filter == StatsFilter.conf:
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return config_stats_ioclass
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if stat_filter == StatsFilter.usage:
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return usage_stats
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if stat_filter == StatsFilter.blk:
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return block_stats_core if per_core else block_stats_cache
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if stat_filter == StatsFilter.req:
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return request_stats
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def validate_statistics(statistics: dict, stat_filter: StatsFilter, per_core: bool):
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for stat_name in get_checked_statistics(stat_filter, per_core):
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if stat_name not in statistics.keys():
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TestRun.LOGGER.error(f"Value for {stat_name} not displayed in output")
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else:
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del statistics[stat_name]
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if len(statistics.keys()):
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TestRun.LOGGER.error(f"Additional statistics found: {', '.join(statistics.keys())}")
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def prepare(random_cls, cache_count=1, cores_per_cache=1):
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cache_modes = [CacheMode.WT, CacheMode.WB, CacheMode.WA, CacheMode.WO]
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ioclass_config.remove_ioclass_config()
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cache_device = TestRun.disks['cache']
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core_device = TestRun.disks['core']
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cache_device.create_partitions([Size(500, Unit.MebiByte)] * cache_count)
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core_device.create_partitions([Size(2, Unit.GibiByte)] * cache_count * cores_per_cache)
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cache_devices = cache_device.partitions
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core_devices = core_device.partitions
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for core_device in core_devices:
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core_device.create_filesystem(Filesystem.ext4)
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Udev.disable()
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caches, cores = [], []
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for i, cache_device in enumerate(cache_devices):
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TestRun.LOGGER.info(f"Starting cache on {cache_device.system_path}")
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cache = casadm.start_cache(cache_device,
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force=True,
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cache_mode=cache_modes[i],
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cache_line_size=random_cls)
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caches.append(cache)
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TestRun.LOGGER.info("Setting cleaning policy to NOP")
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cache.set_cleaning_policy(CleaningPolicy.nop)
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for core_device in core_devices[i * cores_per_cache:(i + 1) * cores_per_cache]:
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TestRun.LOGGER.info(
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f"Adding core device {core_device.system_path} to cache {cache.cache_id}")
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core = cache.add_core(core_dev=core_device)
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core.reset_counters()
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cores.append(core)
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TestRun.executor.run_expect_success(f"mkdir -p {mountpoint}")
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return caches, cores
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