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Merge pull request #456 from arutk/aalru

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Relax LRU list ordering to minimize list updates
This commit is contained in:
Robert Baldyga
2021-02-18 13:48:54 +01:00
committed by GitHub
parent 91cbeed611 9e98eec361
commit 75baec5aa5
7 changed files with 467 additions and 36 deletions
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12
src/concurrency/ocf_metadata_concurrency.c
View File

@@ -14,11 +14,8 @@ int ocf_metadata_concurrency_init(struct ocf_metadata_lock *metadata_lock)
unsigned part_iter;
unsigned global_iter;
for (evp_iter = 0; evp_iter < OCF_NUM_EVICTION_LISTS; evp_iter++) {
err = env_spinlock_init(&metadata_lock->eviction[evp_iter]);
if (err)
goto eviction_err;
}
for (evp_iter = 0; evp_iter < OCF_NUM_EVICTION_LISTS; evp_iter++)
env_rwlock_init(&metadata_lock->eviction[evp_iter]);
env_rwlock_init(&metadata_lock->status);
@@ -47,9 +44,8 @@ global_err:
env_rwlock_destroy(&metadata_lock->status);
eviction_err:
while (evp_iter--)
env_spinlock_destroy(&metadata_lock->eviction[evp_iter]);
env_rwlock_destroy(&metadata_lock->eviction[evp_iter]);
return err;
}
@@ -62,7 +58,7 @@ void ocf_metadata_concurrency_deinit(struct ocf_metadata_lock *metadata_lock)
env_spinlock_destroy(&metadata_lock->partition[i]);
for (i = 0; i < OCF_NUM_EVICTION_LISTS; i++)
env_spinlock_destroy(&metadata_lock->eviction[i]);
env_rwlock_destroy(&metadata_lock->eviction[i]);
for (i = 0; i < OCF_NUM_GLOBAL_META_LOCKS; i++)
env_rwsem_destroy(&metadata_lock->global[i].sem);

52
src/concurrency/ocf_metadata_concurrency.h
View File

@@ -28,49 +28,69 @@ int ocf_metadata_concurrency_attached_init(
void ocf_metadata_concurrency_attached_deinit(
struct ocf_metadata_lock *metadata_lock);
static inline void ocf_metadata_eviction_lock(
static inline void ocf_metadata_eviction_wr_lock(
struct ocf_metadata_lock *metadata_lock, unsigned ev_list)
{
env_spinlock_lock(&metadata_lock->eviction[ev_list]);
env_rwlock_write_lock(&metadata_lock->eviction[ev_list]);
}
static inline void ocf_metadata_eviction_unlock(
static inline void ocf_metadata_eviction_wr_unlock(
struct ocf_metadata_lock *metadata_lock, unsigned ev_list)
{
env_spinlock_unlock(&metadata_lock->eviction[ev_list]);
env_rwlock_write_unlock(&metadata_lock->eviction[ev_list]);
}
static inline void ocf_metadata_eviction_lock_all(
static inline void ocf_metadata_eviction_rd_lock(
struct ocf_metadata_lock *metadata_lock, unsigned ev_list)
{
env_rwlock_read_lock(&metadata_lock->eviction[ev_list]);
}
static inline void ocf_metadata_eviction_rd_unlock(
struct ocf_metadata_lock *metadata_lock, unsigned ev_list)
{
env_rwlock_read_unlock(&metadata_lock->eviction[ev_list]);
}
static inline void ocf_metadata_eviction_wr_lock_all(
struct ocf_metadata_lock *metadata_lock)
{
uint32_t i;
for (i = 0; i < OCF_NUM_EVICTION_LISTS; i++)
ocf_metadata_eviction_lock(metadata_lock, i);
ocf_metadata_eviction_wr_lock(metadata_lock, i);
}
static inline void ocf_metadata_eviction_unlock_all(
static inline void ocf_metadata_eviction_wr_unlock_all(
struct ocf_metadata_lock *metadata_lock)
{
uint32_t i;
for (i = 0; i < OCF_NUM_EVICTION_LISTS; i++)
ocf_metadata_eviction_unlock(metadata_lock, i);
ocf_metadata_eviction_wr_unlock(metadata_lock, i);
}
#define OCF_METADATA_EVICTION_LOCK(cline) \
ocf_metadata_eviction_lock(&cache->metadata.lock, \
#define OCF_METADATA_EVICTION_WR_LOCK(cline) \
ocf_metadata_eviction_wr_lock(&cache->metadata.lock, \
cline % OCF_NUM_EVICTION_LISTS)
#define OCF_METADATA_EVICTION_UNLOCK(cline) \
ocf_metadata_eviction_unlock(&cache->metadata.lock, \
#define OCF_METADATA_EVICTION_WR_UNLOCK(cline) \
ocf_metadata_eviction_wr_unlock(&cache->metadata.lock, \
cline % OCF_NUM_EVICTION_LISTS)
#define OCF_METADATA_EVICTION_LOCK_ALL() \
ocf_metadata_eviction_lock_all(&cache->metadata.lock)
#define OCF_METADATA_EVICTION_RD_LOCK(cline) \
ocf_metadata_eviction_rd_lock(&cache->metadata.lock, \
cline % OCF_NUM_EVICTION_LISTS)
#define OCF_METADATA_EVICTION_UNLOCK_ALL() \
ocf_metadata_eviction_unlock_all(&cache->metadata.lock)
#define OCF_METADATA_EVICTION_RD_UNLOCK(cline) \
ocf_metadata_eviction_rd_unlock(&cache->metadata.lock, \
cline % OCF_NUM_EVICTION_LISTS)
#define OCF_METADATA_EVICTION_WR_LOCK_ALL() \
ocf_metadata_eviction_wr_lock_all(&cache->metadata.lock)
#define OCF_METADATA_EVICTION_WR_UNLOCK_ALL() \
ocf_metadata_eviction_wr_unlock_all(&cache->metadata.lock)
static inline void ocf_metadata_partition_lock(
struct ocf_metadata_lock *metadata_lock,