160 lines
6.0 KiB
Python
160 lines
6.0 KiB
Python
#
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# Copyright(c) 2019 Intel Corporation
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# SPDX-License-Identifier: BSD-3-Clause-Clear
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#
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from api.cas.cli import *
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from api.cas.casadm_parser import *
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from test_utils.os_utils import *
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from api.cas.cache_config import *
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from storage_devices.device import Device
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from core.test_run import TestRun
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from api.cas.casadm_params import *
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class Cache:
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def __init__(self, device_system_path):
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self.cache_device = Device(device_system_path)
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self.cache_id = int(self.__get_cache_id())
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self.__cache_line_size = None
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self.__metadata_mode = None
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self.__metadata_size = None
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def __get_cache_id(self):
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cmd = f"{list_cmd()} | grep {self.cache_device.system_path}"
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output = TestRun.executor.run(cmd)
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if output.exit_code == 0 and output.stdout.strip():
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return output.stdout.split()[1]
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else:
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raise Exception(f"There is no cache started on {self.cache_device.system_path}.")
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def get_core_devices(self):
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return get_cores(self.cache_id)
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def get_cache_line_size(self):
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if self.__cache_line_size is None:
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stats = self.get_cache_statistics()
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stats_line_size = stats["cache line size"]
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self.__cache_line_size = CacheLineSize(stats_line_size.get_value(Unit.Byte))
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return self.__cache_line_size
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def get_cleaning_policy(self):
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stats = self.get_cache_statistics()
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cp = stats["cleaning policy"]
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return CleaningPolicy[cp]
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def get_eviction_policy(self):
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stats = self.get_cache_statistics()
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ep = stats["eviction policy"]
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return EvictionPolicy[ep]
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def get_metadata_mode(self):
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if self.__metadata_mode is None:
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stats = self.get_cache_statistics()
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mm = stats["metadata mode"]
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self.__metadata_mode = MetadataMode[mm]
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return self.__metadata_mode
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def get_metadata_size(self):
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if self.__metadata_size is None:
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stats = self.get_cache_statistics()
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self.__metadata_size = stats["metadata memory footprint"]
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return self.__metadata_size
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def get_occupancy(self):
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return self.get_cache_statistics()["occupancy"]
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def get_status(self):
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status = self.get_cache_statistics()["status"].replace(' ', '_')
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return CacheStatus[status]
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def get_cache_mode(self):
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return CacheMode[self.get_cache_statistics()["write policy"].upper()]
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def get_dirty_blocks(self):
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return self.get_cache_statistics()["dirty"]
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def get_dirty_for(self):
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return self.get_cache_statistics()["dirty for"]
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def get_clean_blocks(self):
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return self.get_cache_statistics()["clean"]
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def get_flush_parameters_alru(self):
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return get_flush_parameters_alru(self.cache_id)
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def get_flush_parameters_acp(self):
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return get_flush_parameters_acp(self.cache_id)
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# Casadm methods:
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def get_cache_statistics(self,
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io_class_id: int = None,
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stat_filter: List[StatsFilter] = None,
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percentage_val: bool = False):
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return get_statistics(self.cache_id, None, io_class_id,
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stat_filter, percentage_val)
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def flush_cache(self):
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casadm.flush(cache_id=self.cache_id)
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sync()
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assert self.get_dirty_blocks().get_value(Unit.Blocks4096) == 0
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def stop(self, no_data_flush: bool = False):
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return casadm.stop_cache(self.cache_id, no_data_flush)
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def add_core(self, core_dev, core_id: int = None):
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return casadm.add_core(self, core_dev, core_id)
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def remove_core(self, core_id, force: bool = False):
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return casadm.remove_core(self.cache_id, core_id, force)
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def reset_counters(self):
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return casadm.reset_counters(self.cache_id)
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def set_cache_mode(self, cache_mode: CacheMode, flush: bool = True):
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return casadm.set_cache_mode(cache_mode, self.cache_id, flush)
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def load_io_class(self, file_path: str):
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return casadm.load_io_classes(self.cache_id, file_path)
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def list_io_classes(self, output_format: OutputFormat):
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return casadm.list_io_classes(self.cache_id, output_format)
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def set_seq_cutoff_parameters(self, seq_cutoff_param: SeqCutOffParameters):
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return casadm.set_param_cutoff(self.cache_id,
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threshold=seq_cutoff_param.threshold,
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policy=seq_cutoff_param.policy)
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def set_seq_cutoff_threshold(self, threshold: Size):
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return casadm.set_param_cutoff(self.cache_id,
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threshold=threshold,
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policy=None)
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def set_seq_cutoff_policy(self, policy: SeqCutOffPolicy):
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return casadm.set_param_cutoff(self.cache_id,
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threshold=None,
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policy=policy)
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def set_cleaning_policy(self, cleaning_policy: CleaningPolicy):
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return casadm.set_param_cleaning(self.cache_id, cleaning_policy)
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def set_params_acp(self, acp_params: FlushParametersAcp):
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return casadm.set_param_cleaning_acp(self.cache_id,
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acp_params.wake_up_time.total_milliseconds(),
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acp_params.flush_max_buffers)
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def set_params_alru(self, alru_params: FlushParametersAlru):
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return casadm.set_param_cleaning_alru(self.cache_id,
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alru_params.wake_up_time.total_seconds(),
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alru_params.staleness_time.total_seconds(),
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alru_params.flush_max_buffers,
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alru_params.activity_threshold.total_milliseconds())
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def get_cache_config(self):
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return CacheConfig(self.get_cache_line_size(),
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self.get_cache_mode(),
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self.get_cleaning_policy(),
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self.get_eviction_policy(),
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self.get_metadata_mode())
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