diff options
Diffstat (limited to 'src/include/cache.h')
| -rw-r--r-- | src/include/cache.h | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/src/include/cache.h b/src/include/cache.h index 9184a2fe6ed..4f7981a5df9 100644 --- a/src/include/cache.h +++ b/src/include/cache.h @@ -26,6 +26,19 @@ struct __wt_evict_entry { WT_REF *ref; /* Page to flush/evict */ }; +#define WT_EVICT_QUEUE_MAX 2 +/* + * WT_EVICT_QUEUE -- + * Encapsulation of an eviction candidate queue. + */ +struct __wt_evict_queue { + WT_SPINLOCK evict_lock; /* Eviction LRU queue */ + WT_EVICT_ENTRY *evict_queue; /* LRU pages being tracked */ + uint32_t evict_candidates; /* LRU list pages to evict */ + uint32_t evict_entries; /* LRU entries in the queue */ + volatile uint32_t evict_max; /* LRU maximum eviction slot used */ +}; + /* * WT_EVICT_WORKER -- * Encapsulation of an eviction worker thread. @@ -67,8 +80,10 @@ struct __wt_cache { uint64_t pages_dirty; uint64_t bytes_read; /* Bytes read into memory */ - uint64_t app_evicts; /* Pages evicted by user threads */ uint64_t app_waits; /* User threads waited for cache */ + uint64_t app_evicts; /* Pages evicted by user threads */ + uint64_t server_evicts; /* Pages evicted by server thread */ + uint64_t worker_evicts; /* Pages evicted by worker threads */ uint64_t evict_max_page_size; /* Largest page seen at eviction */ @@ -83,7 +98,6 @@ struct __wt_cache { * Eviction thread information. */ WT_CONDVAR *evict_cond; /* Eviction server condition */ - WT_SPINLOCK evict_lock; /* Eviction LRU queue */ WT_SPINLOCK evict_walk_lock; /* Eviction walk location */ /* Condition signalled when the eviction server populates the queue */ WT_CONDVAR *evict_waiter_cond; @@ -98,11 +112,11 @@ struct __wt_cache { /* * LRU eviction list information. */ - WT_EVICT_ENTRY *evict_queue; /* LRU pages being tracked */ + WT_SPINLOCK evict_queue_lock; /* Eviction current queue lock */ + WT_EVICT_QUEUE evict_queues[WT_EVICT_QUEUE_MAX]; + WT_EVICT_QUEUE *evict_current_queue;/* LRU current queue in use */ WT_EVICT_ENTRY *evict_current; /* LRU current page to be evicted */ - uint32_t evict_candidates; /* LRU list pages to evict */ - uint32_t evict_entries; /* LRU entries in the queue */ - volatile uint32_t evict_max; /* LRU maximum eviction slot used */ + uint32_t evict_queue_fill; /* LRU eviction queue index to fill */ uint32_t evict_slots; /* LRU list eviction slots */ WT_DATA_HANDLE *evict_file_next; /* LRU next file to search */ |