diff options
Diffstat (limited to 'src/third_party/wiredtiger/src/include/btree.h')
| -rw-r--r-- | src/third_party/wiredtiger/src/include/btree.h | 41 |
1 files changed, 22 insertions, 19 deletions
diff --git a/src/third_party/wiredtiger/src/include/btree.h b/src/third_party/wiredtiger/src/include/btree.h index 976c1d2110c..28fe1b94b23 100644 --- a/src/third_party/wiredtiger/src/include/btree.h +++ b/src/third_party/wiredtiger/src/include/btree.h @@ -58,6 +58,12 @@ #define WT_BTREE_DELETE_THRESHOLD 1000 /* + * Minimum size of the chunks (in percentage of the page size) a page gets split + * into during reconciliation. + */ +#define WT_BTREE_MIN_SPLIT_PCT 50 + +/* * WT_BTREE -- * A btree handle. */ @@ -118,15 +124,17 @@ struct __wt_btree { uint64_t last_recno; /* Column-store last record number */ - WT_REF root; /* Root page reference */ - bool modified; /* If the tree ever modified */ - bool bulk_load_ok; /* Bulk-load is a possibility */ + WT_REF root; /* Root page reference */ + bool modified; /* If the tree ever modified */ + uint8_t original; /* Newly created: bulk-load possible + (want a bool but needs atomic cas) */ + + bool lsm_primary; /* Handle is/was the LSM primary */ WT_BM *bm; /* Block manager reference */ u_int block_header; /* WT_PAGE_HEADER_BYTE_SIZE */ uint64_t checkpoint_gen; /* Checkpoint generation */ - bool include_checkpoint_txn;/* ID checks include checkpoint */ uint64_t rec_max_txn; /* Maximum txn seen (clean trees) */ uint64_t write_gen; /* Write generation */ @@ -139,14 +147,10 @@ struct __wt_btree { u_int evict_walk_period; /* Skip this many LRU walks */ u_int evict_walk_saved; /* Saved walk skips for checkpoints */ u_int evict_walk_skips; /* Number of walks skipped */ - u_int evict_disabled; /* Eviction disabled count */ + int evict_disabled; /* Eviction disabled count */ volatile uint32_t evict_busy; /* Count of threads in eviction */ - enum { - WT_EVICT_WALK_NEXT, WT_EVICT_WALK_PREV, - WT_EVICT_WALK_RAND_NEXT, WT_EVICT_WALK_RAND_PREV - } evict_walk_state; /* Eviction walk state */ -#define WT_EVICT_WALK_MAX_LEGAL_VALUE WT_EVICT_WALK_RAND_PREV + 1 - + int evict_start_type; /* Start position for eviction walk + (see WT_EVICT_WALK_START). */ enum { WT_CKPT_OFF, WT_CKPT_PREPARE, WT_CKPT_RUNNING } checkpointing; /* Checkpoint in progress */ @@ -159,15 +163,14 @@ struct __wt_btree { WT_SPINLOCK flush_lock; /* Lock to flush the tree's pages */ /* Flags values up to 0xff are reserved for WT_DHANDLE_* */ -#define WT_BTREE_BULK 0x000100 /* Bulk-load handle */ -#define WT_BTREE_IGNORE_CACHE 0x000200 /* Cache-resident object */ -#define WT_BTREE_IN_MEMORY 0x000400 /* Cache-resident object */ -#define WT_BTREE_LOOKASIDE 0x000800 /* Look-aside table */ -#define WT_BTREE_LSM_PRIMARY 0x001000 /* Handle is current LSM primary */ -#define WT_BTREE_NO_CHECKPOINT 0x002000 /* Disable checkpoints */ -#define WT_BTREE_NO_EVICTION 0x004000 /* Disable eviction */ +#define WT_BTREE_ALLOW_SPLITS 0x000100 /* Allow splits, even with no evict */ +#define WT_BTREE_BULK 0x000200 /* Bulk-load handle */ +#define WT_BTREE_CLOSED 0x000400 /* Handle closed */ +#define WT_BTREE_IGNORE_CACHE 0x000800 /* Cache-resident object */ +#define WT_BTREE_IN_MEMORY 0x001000 /* Cache-resident object */ +#define WT_BTREE_LOOKASIDE 0x002000 /* Look-aside table */ +#define WT_BTREE_NO_CHECKPOINT 0x004000 /* Disable checkpoints */ #define WT_BTREE_NO_LOGGING 0x008000 /* Disable logging */ -#define WT_BTREE_NO_RECONCILE 0x010000 /* Allow splits, even with no evict */ #define WT_BTREE_REBALANCE 0x020000 /* Handle is for rebalance */ #define WT_BTREE_SALVAGE 0x040000 /* Handle is for salvage */ #define WT_BTREE_SKIP_CKPT 0x080000 /* Handle skipped checkpoint */ |