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/*
* Copyright(c) 2012-2018 Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause-Clear
*/
#ifndef __OCF_CLEANING_ALRU_H__
#define __OCF_CLEANING_ALRU_H__
/**
* @file
* @brief ALRU cleaning policy API
*/
enum ocf_cleaning_alru_parameters {
ocf_alru_wake_up_time,
ocf_alru_stale_buffer_time,
ocf_alru_flush_max_buffers,
ocf_alru_activity_threshold,
};
/**
* @name ALRU cleaning policy parameters
* @{
*/
/**
* ALRU cleaning thread wake up time
*/
/** Wake up time minimum value */
#define OCF_ALRU_MIN_WAKE_UP 0
/** Wake up time maximum value */
#define OCF_ALRU_MAX_WAKE_UP 3600
/** Wake up time default value */
#define OCF_ALRU_DEFAULT_WAKE_UP 20
/**
* ALRU cleaning thread staleness time
*/
/** Staleness time minimum value */
#define OCF_ALRU_MIN_STALENESS_TIME 1
/** Staleness time maximum value */
#define OCF_ALRU_MAX_STALENESS_TIME 3600
/** Staleness time default value*/
#define OCF_ALRU_DEFAULT_STALENESS_TIME 120
/**
* ALRU cleaning thread number of dirty cache lines to be flushed in one cycle
*/
/** Dirty cache lines to be flushed in one cycle minimum value */
#define OCF_ALRU_MIN_FLUSH_MAX_BUFFERS 1
/** Dirty cache lines to be flushed in one cycle maximum value */
#define OCF_ALRU_MAX_FLUSH_MAX_BUFFERS 10000
/** Dirty cache lines to be flushed in one cycle default value */
#define OCF_ALRU_DEFAULT_FLUSH_MAX_BUFFERS 100
/**
* ALRU cleaning thread cache idle time before flushing thread can start
*/
/** Idle time before flushing thread can start minimum value */
#define OCF_ALRU_MIN_ACTIVITY_THRESHOLD 0
/** Idle time before flushing thread can start maximum value */
#define OCF_ALRU_MAX_ACTIVITY_THRESHOLD 1000000
/** Idle time before flushing thread can start default value */
#define OCF_ALRU_DEFAULT_ACTIVITY_THRESHOLD 10000
/**
* @}
*/
#endif /* __OCF_CLEANING_ALRU_H__ */
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