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Add sequential cutoff debug interface

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga 2020-04-06 14:00:52 +02:00
parent 93cd0615d3
commit e9afb40860
2 changed files with 45 additions and 0 deletions
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21
inc/ocf_debug.h Normal file
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@ -0,0 +1,21 @@
/*
* Copyright(c) 2012-2018 Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause-Clear
*/
#ifndef __OCF_DEBUG_H__
#define __OCF_DEBUG_H__
struct ocf_dbg_seq_cutoff_status {
struct {
uint64_t last;
uint64_t bytes;
uint32_t rw : 1;
uint32_t active : 1;
} streams[OCF_SEQ_CUTOFF_MAX_STREAMS];
};
void ocf_dbg_get_seq_cutoff_status(ocf_core_t core,
struct ocf_dbg_seq_cutoff_status *status);
#endif /* __OCF_DEBUG_H__ */

24
src/ocf_seq_cutoff.c
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@ -6,6 +6,7 @@
#include "ocf_seq_cutoff.h" #include "ocf_seq_cutoff.h"
#include "ocf_cache_priv.h" #include "ocf_cache_priv.h"
#include "ocf_priv.h" #include "ocf_priv.h"
#include "ocf/ocf_debug.h"
#define SEQ_CUTOFF_FULL_MARGIN \ #define SEQ_CUTOFF_FULL_MARGIN \
(OCF_TO_EVICTION_MIN + OCF_PENDING_EVICTION_LIMIT) (OCF_TO_EVICTION_MIN + OCF_PENDING_EVICTION_LIMIT)
@ -62,6 +63,29 @@ void ocf_core_seq_cutoff_init(ocf_core_t core)
} }
} }
void ocf_dbg_get_seq_cutoff_status(ocf_core_t core,
struct ocf_dbg_seq_cutoff_status *status)
{
struct ocf_seq_cutoff_stream *stream;
uint32_t threshold;
int i = 0;
OCF_CHECK_NULL(core);
OCF_CHECK_NULL(status);
threshold = ocf_core_get_seq_cutoff_threshold(core);
env_rwlock_read_lock(&core->seq_cutoff.lock);
list_for_each_entry(stream, &core->seq_cutoff.lru, list) {
status->streams[i].last = stream->last;
status->streams[i].bytes = stream->bytes;
status->streams[i].rw = stream->rw;
status->streams[i].active = (stream->bytes >= threshold);
i++;
}
env_rwlock_read_unlock(&core->seq_cutoff.lock);
}
bool ocf_core_seq_cutoff_check(ocf_core_t core, struct ocf_request *req) bool ocf_core_seq_cutoff_check(ocf_core_t core, struct ocf_request *req)
{ {
ocf_seq_cutoff_policy policy = ocf_core_get_seq_cutoff_policy(core); ocf_seq_cutoff_policy policy = ocf_core_get_seq_cutoff_policy(core);