WT-2976 Add a statistic tracking how long app threads spend reading and writing (#3096)

6 files changed, 250 insertions, 201 deletions

diff --git a/dist/stat_data.py b/dist/stat_data.py
index ef70ca89eb0..bcf5201bd90 100644
--- a/dist/stat_data.py
+++ b/dist/stat_data.py
@@ -241,9 +241,13 @@ connection_stats = [
     CacheStat('cache_pages_inuse', 'pages currently held in the cache', 'no_clear,no_scale'),
     CacheStat('cache_pages_requested', 'pages requested from the cache'),
     CacheStat('cache_read', 'pages read into cache'),
+    CacheStat('cache_read_app_count', 'application threads page read from disk to cache count'),
+    CacheStat('cache_read_app_time', 'application threads page read from disk to cache time (usecs)'),
     CacheStat('cache_read_lookaside', 'pages read into cache requiring lookaside entries'),
     CacheStat('cache_read_overflow', 'overflow pages read into cache'),
     CacheStat('cache_write', 'pages written from cache'),
+    CacheStat('cache_write_app_count', 'application threads page write from cache to disk count'),
+    CacheStat('cache_write_app_time', 'application threads page write from cache to disk time (usecs)'),
     CacheStat('cache_write_lookaside', 'page written requiring lookaside records'),
     CacheStat('cache_write_restore', 'pages written requiring in-memory restoration'),
 
diff --git a/src/btree/bt_io.c b/src/btree/bt_io.c
index 42c3a849a88..a8645f79dbe 100644
--- a/src/btree/bt_io.c
+++ b/src/btree/bt_io.c
@@ -171,6 +171,7 @@ __wt_bt_write(WT_SESSION_IMPL *session, WT_ITEM *buf,
     uint8_t *addr, size_t *addr_sizep,
     bool checkpoint, bool checkpoint_io, bool compressed)
 {
+	struct timespec start, stop;
 	WT_BM *bm;
 	WT_BTREE *btree;
 	WT_DECL_ITEM(ctmp);
@@ -356,6 +357,8 @@ __wt_bt_write(WT_SESSION_IMPL *session, WT_ITEM *buf,
 		data_checksum = !compressed;
 		break;
 	}
+	if (!F_ISSET(session, WT_SESSION_INTERNAL))
+		__wt_epoch(session, &start);
 
 	/* Call the block manager to write the block. */
 	WT_ERR(checkpoint ?
@@ -363,6 +366,14 @@ __wt_bt_write(WT_SESSION_IMPL *session, WT_ITEM *buf,
 	    bm->write(
 	    bm, session, ip, addr, addr_sizep, data_checksum, checkpoint_io));
 
+	/* Update some statistics now that the write is done */
+	if (!F_ISSET(session, WT_SESSION_INTERNAL)) {
+		__wt_epoch(session, &stop);
+		WT_STAT_CONN_INCR(session, cache_write_app_count);
+		WT_STAT_CONN_INCRV(session, cache_write_app_time,
+		    WT_TIMEDIFF_US(stop, start));
+	}
+
 	WT_STAT_CONN_INCR(session, cache_write);
 	WT_STAT_DATA_INCR(session, cache_write);
 	S2C(session)->cache->bytes_written += dsk->mem_size;
diff --git a/src/btree/bt_read.c b/src/btree/bt_read.c
index dd0bb7def92..679f20bdac5 100644
--- a/src/btree/bt_read.c
+++ b/src/btree/bt_read.c
@@ -357,6 +357,7 @@ __evict_force_check(WT_SESSION_IMPL *session, WT_REF *ref)
 static int
 __page_read(WT_SESSION_IMPL *session, WT_REF *ref)
 {
+	struct timespec start, stop;
 	const WT_PAGE_HEADER *dsk;
 	WT_BTREE *btree;
 	WT_DECL_RET;
@@ -404,7 +405,15 @@ __page_read(WT_SESSION_IMPL *session, WT_REF *ref)
 	 * There's an address, read or map the backing disk page and build an
 	 * in-memory version of the page.
 	 */
+	if (!F_ISSET(session, WT_SESSION_INTERNAL))
+		__wt_epoch(session, &start);
 	WT_ERR(__wt_bt_read(session, &tmp, addr, addr_size));
+	if (!F_ISSET(session, WT_SESSION_INTERNAL)) {
+		__wt_epoch(session, &stop);
+		WT_STAT_CONN_INCR(session, cache_read_app_count);
+		WT_STAT_CONN_INCRV(session, cache_read_app_time,
+		    WT_TIMEDIFF_US(stop, start));
+	}
 	WT_ERR(__wt_page_inmem(session, ref, tmp.data, tmp.memsize,
 	    WT_DATA_IN_ITEM(&tmp) ?
 	    WT_PAGE_DISK_ALLOC : WT_PAGE_DISK_MAPPED, &page));
diff --git a/src/include/stat.h b/src/include/stat.h
index 15edce9ec85..d0b0b60585a 100644
--- a/src/include/stat.h
+++ b/src/include/stat.h
@@ -285,6 +285,10 @@ struct __wt_connection_stats {
 	int64_t block_byte_write_checkpoint;
 	int64_t block_map_read;
 	int64_t block_byte_map_read;
+	int64_t cache_read_app_count;
+	int64_t cache_read_app_time;
+	int64_t cache_write_app_count;
+	int64_t cache_write_app_time;
 	int64_t cache_bytes_image;
 	int64_t cache_bytes_inuse;
 	int64_t cache_bytes_other;
diff --git a/src/include/wiredtiger.in b/src/include/wiredtiger.in
index f3156609fed..7bbdf85d954 100644
--- a/src/include/wiredtiger.in
+++ b/src/include/wiredtiger.in
@@ -4280,429 +4280,437 @@ extern int wiredtiger_extension_terminate(WT_CONNECTION *connection);
 #define	WT_STAT_CONN_BLOCK_MAP_READ			1029
 /*! block-manager: mapped bytes read */
 #define	WT_STAT_CONN_BLOCK_BYTE_MAP_READ		1030
+/*! cache: application threads page read from disk to cache count */
+#define	WT_STAT_CONN_CACHE_READ_APP_COUNT		1031
+/*! cache: application threads page read from disk to cache time (usecs) */
+#define	WT_STAT_CONN_CACHE_READ_APP_TIME		1032
+/*! cache: application threads page write from cache to disk count */
+#define	WT_STAT_CONN_CACHE_WRITE_APP_COUNT		1033
+/*! cache: application threads page write from cache to disk time (usecs) */
+#define	WT_STAT_CONN_CACHE_WRITE_APP_TIME		1034
 /*! cache: bytes belonging to page images in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_IMAGE			1031
+#define	WT_STAT_CONN_CACHE_BYTES_IMAGE			1035
 /*! cache: bytes currently in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_INUSE			1032
+#define	WT_STAT_CONN_CACHE_BYTES_INUSE			1036
 /*! cache: bytes not belonging to page images in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_OTHER			1033
+#define	WT_STAT_CONN_CACHE_BYTES_OTHER			1037
 /*! cache: bytes read into cache */
-#define	WT_STAT_CONN_CACHE_BYTES_READ			1034
+#define	WT_STAT_CONN_CACHE_BYTES_READ			1038
 /*! cache: bytes written from cache */
-#define	WT_STAT_CONN_CACHE_BYTES_WRITE			1035
+#define	WT_STAT_CONN_CACHE_BYTES_WRITE			1039
 /*! cache: checkpoint blocked page eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_CHECKPOINT		1036
+#define	WT_STAT_CONN_CACHE_EVICTION_CHECKPOINT		1040
 /*! cache: eviction calls to get a page */
-#define	WT_STAT_CONN_CACHE_EVICTION_GET_REF		1037
+#define	WT_STAT_CONN_CACHE_EVICTION_GET_REF		1041
 /*! cache: eviction calls to get a page found queue empty */
-#define	WT_STAT_CONN_CACHE_EVICTION_GET_REF_EMPTY	1038
+#define	WT_STAT_CONN_CACHE_EVICTION_GET_REF_EMPTY	1042
 /*! cache: eviction calls to get a page found queue empty after locking */
-#define	WT_STAT_CONN_CACHE_EVICTION_GET_REF_EMPTY2	1039
+#define	WT_STAT_CONN_CACHE_EVICTION_GET_REF_EMPTY2	1043
 /*! cache: eviction currently operating in aggressive mode */
-#define	WT_STAT_CONN_CACHE_EVICTION_AGGRESSIVE_SET	1040
+#define	WT_STAT_CONN_CACHE_EVICTION_AGGRESSIVE_SET	1044
 /*! cache: eviction empty score */
-#define	WT_STAT_CONN_CACHE_EVICTION_EMPTY_SCORE		1041
+#define	WT_STAT_CONN_CACHE_EVICTION_EMPTY_SCORE		1045
 /*! cache: eviction server candidate queue empty when topping up */
-#define	WT_STAT_CONN_CACHE_EVICTION_QUEUE_EMPTY		1042
+#define	WT_STAT_CONN_CACHE_EVICTION_QUEUE_EMPTY		1046
 /*! cache: eviction server candidate queue not empty when topping up */
-#define	WT_STAT_CONN_CACHE_EVICTION_QUEUE_NOT_EMPTY	1043
+#define	WT_STAT_CONN_CACHE_EVICTION_QUEUE_NOT_EMPTY	1047
 /*! cache: eviction server evicting pages */
-#define	WT_STAT_CONN_CACHE_EVICTION_SERVER_EVICTING	1044
+#define	WT_STAT_CONN_CACHE_EVICTION_SERVER_EVICTING	1048
 /*!
  * cache: eviction server slept, because we did not make progress with
  * eviction
  */
-#define	WT_STAT_CONN_CACHE_EVICTION_SERVER_SLEPT	1045
+#define	WT_STAT_CONN_CACHE_EVICTION_SERVER_SLEPT	1049
 /*! cache: eviction server unable to reach eviction goal */
-#define	WT_STAT_CONN_CACHE_EVICTION_SLOW		1046
+#define	WT_STAT_CONN_CACHE_EVICTION_SLOW		1050
 /*! cache: eviction state */
-#define	WT_STAT_CONN_CACHE_EVICTION_STATE		1047
+#define	WT_STAT_CONN_CACHE_EVICTION_STATE		1051
 /*! cache: eviction walks abandoned */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_ABANDONED	1048
+#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_ABANDONED	1052
 /*! cache: eviction worker thread evicting pages */
-#define	WT_STAT_CONN_CACHE_EVICTION_WORKER_EVICTING	1049
+#define	WT_STAT_CONN_CACHE_EVICTION_WORKER_EVICTING	1053
 /*! cache: failed eviction of pages that exceeded the in-memory maximum */
-#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_FAIL		1050
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_FAIL		1054
 /*! cache: files with active eviction walks */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_ACTIVE	1051
+#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_ACTIVE	1055
 /*! cache: files with new eviction walks started */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_STARTED	1052
+#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_STARTED	1056
 /*! cache: hazard pointer blocked page eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_HAZARD		1053
+#define	WT_STAT_CONN_CACHE_EVICTION_HAZARD		1057
 /*! cache: hazard pointer check calls */
-#define	WT_STAT_CONN_CACHE_HAZARD_CHECKS		1054
+#define	WT_STAT_CONN_CACHE_HAZARD_CHECKS		1058
 /*! cache: hazard pointer check entries walked */
-#define	WT_STAT_CONN_CACHE_HAZARD_WALKS			1055
+#define	WT_STAT_CONN_CACHE_HAZARD_WALKS			1059
 /*! cache: hazard pointer maximum array length */
-#define	WT_STAT_CONN_CACHE_HAZARD_MAX			1056
+#define	WT_STAT_CONN_CACHE_HAZARD_MAX			1060
 /*! cache: in-memory page passed criteria to be split */
-#define	WT_STAT_CONN_CACHE_INMEM_SPLITTABLE		1057
+#define	WT_STAT_CONN_CACHE_INMEM_SPLITTABLE		1061
 /*! cache: in-memory page splits */
-#define	WT_STAT_CONN_CACHE_INMEM_SPLIT			1058
+#define	WT_STAT_CONN_CACHE_INMEM_SPLIT			1062
 /*! cache: internal pages evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_INTERNAL		1059
+#define	WT_STAT_CONN_CACHE_EVICTION_INTERNAL		1063
 /*! cache: internal pages split during eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_INTERNAL	1060
+#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_INTERNAL	1064
 /*! cache: leaf pages split during eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_LEAF		1061
+#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_LEAF		1065
 /*! cache: lookaside table insert calls */
-#define	WT_STAT_CONN_CACHE_LOOKASIDE_INSERT		1062
+#define	WT_STAT_CONN_CACHE_LOOKASIDE_INSERT		1066
 /*! cache: lookaside table remove calls */
-#define	WT_STAT_CONN_CACHE_LOOKASIDE_REMOVE		1063
+#define	WT_STAT_CONN_CACHE_LOOKASIDE_REMOVE		1067
 /*! cache: maximum bytes configured */
-#define	WT_STAT_CONN_CACHE_BYTES_MAX			1064
+#define	WT_STAT_CONN_CACHE_BYTES_MAX			1068
 /*! cache: maximum page size at eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_MAXIMUM_PAGE_SIZE	1065
+#define	WT_STAT_CONN_CACHE_EVICTION_MAXIMUM_PAGE_SIZE	1069
 /*! cache: modified pages evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_DIRTY		1066
+#define	WT_STAT_CONN_CACHE_EVICTION_DIRTY		1070
 /*! cache: modified pages evicted by application threads */
-#define	WT_STAT_CONN_CACHE_EVICTION_APP_DIRTY		1067
+#define	WT_STAT_CONN_CACHE_EVICTION_APP_DIRTY		1071
 /*! cache: overflow pages read into cache */
-#define	WT_STAT_CONN_CACHE_READ_OVERFLOW		1068
+#define	WT_STAT_CONN_CACHE_READ_OVERFLOW		1072
 /*! cache: overflow values cached in memory */
-#define	WT_STAT_CONN_CACHE_OVERFLOW_VALUE		1069
+#define	WT_STAT_CONN_CACHE_OVERFLOW_VALUE		1073
 /*! cache: page split during eviction deepened the tree */
-#define	WT_STAT_CONN_CACHE_EVICTION_DEEPEN		1070
+#define	WT_STAT_CONN_CACHE_EVICTION_DEEPEN		1074
 /*! cache: page written requiring lookaside records */
-#define	WT_STAT_CONN_CACHE_WRITE_LOOKASIDE		1071
+#define	WT_STAT_CONN_CACHE_WRITE_LOOKASIDE		1075
 /*! cache: pages currently held in the cache */
-#define	WT_STAT_CONN_CACHE_PAGES_INUSE			1072
+#define	WT_STAT_CONN_CACHE_PAGES_INUSE			1076
 /*! cache: pages evicted because they exceeded the in-memory maximum */
-#define	WT_STAT_CONN_CACHE_EVICTION_FORCE		1073
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE		1077
 /*! cache: pages evicted because they had chains of deleted items */
-#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_DELETE	1074
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_DELETE	1078
 /*! cache: pages evicted by application threads */
-#define	WT_STAT_CONN_CACHE_EVICTION_APP			1075
+#define	WT_STAT_CONN_CACHE_EVICTION_APP			1079
 /*! cache: pages queued for eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED	1076
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED	1080
 /*! cache: pages queued for urgent eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_URGENT	1077
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_URGENT	1081
 /*! cache: pages queued for urgent eviction during walk */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_OLDEST	1078
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_OLDEST	1082
 /*! cache: pages read into cache */
-#define	WT_STAT_CONN_CACHE_READ				1079
+#define	WT_STAT_CONN_CACHE_READ				1083
 /*! cache: pages read into cache requiring lookaside entries */
-#define	WT_STAT_CONN_CACHE_READ_LOOKASIDE		1080
+#define	WT_STAT_CONN_CACHE_READ_LOOKASIDE		1084
 /*! cache: pages requested from the cache */
-#define	WT_STAT_CONN_CACHE_PAGES_REQUESTED		1081
+#define	WT_STAT_CONN_CACHE_PAGES_REQUESTED		1085
 /*! cache: pages seen by eviction walk */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_SEEN		1082
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_SEEN		1086
 /*! cache: pages selected for eviction unable to be evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_FAIL		1083
+#define	WT_STAT_CONN_CACHE_EVICTION_FAIL		1087
 /*! cache: pages walked for eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALK		1084
+#define	WT_STAT_CONN_CACHE_EVICTION_WALK		1088
 /*! cache: pages written from cache */
-#define	WT_STAT_CONN_CACHE_WRITE			1085
+#define	WT_STAT_CONN_CACHE_WRITE			1089
 /*! cache: pages written requiring in-memory restoration */
-#define	WT_STAT_CONN_CACHE_WRITE_RESTORE		1086
+#define	WT_STAT_CONN_CACHE_WRITE_RESTORE		1090
 /*! cache: percentage overhead */
-#define	WT_STAT_CONN_CACHE_OVERHEAD			1087
+#define	WT_STAT_CONN_CACHE_OVERHEAD			1091
 /*! cache: tracked bytes belonging to internal pages in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_INTERNAL		1088
+#define	WT_STAT_CONN_CACHE_BYTES_INTERNAL		1092
 /*! cache: tracked bytes belonging to leaf pages in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_LEAF			1089
+#define	WT_STAT_CONN_CACHE_BYTES_LEAF			1093
 /*! cache: tracked dirty bytes in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_DIRTY			1090
+#define	WT_STAT_CONN_CACHE_BYTES_DIRTY			1094
 /*! cache: tracked dirty pages in the cache */
-#define	WT_STAT_CONN_CACHE_PAGES_DIRTY			1091
+#define	WT_STAT_CONN_CACHE_PAGES_DIRTY			1095
 /*! cache: unmodified pages evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_CLEAN		1092
+#define	WT_STAT_CONN_CACHE_EVICTION_CLEAN		1096
 /*! connection: auto adjusting condition resets */
-#define	WT_STAT_CONN_COND_AUTO_WAIT_RESET		1093
+#define	WT_STAT_CONN_COND_AUTO_WAIT_RESET		1097
 /*! connection: auto adjusting condition wait calls */
-#define	WT_STAT_CONN_COND_AUTO_WAIT			1094
+#define	WT_STAT_CONN_COND_AUTO_WAIT			1098
 /*! connection: files currently open */
-#define	WT_STAT_CONN_FILE_OPEN				1095
+#define	WT_STAT_CONN_FILE_OPEN				1099
 /*! connection: memory allocations */
-#define	WT_STAT_CONN_MEMORY_ALLOCATION			1096
+#define	WT_STAT_CONN_MEMORY_ALLOCATION			1100
 /*! connection: memory frees */
-#define	WT_STAT_CONN_MEMORY_FREE			1097
+#define	WT_STAT_CONN_MEMORY_FREE			1101
 /*! connection: memory re-allocations */
-#define	WT_STAT_CONN_MEMORY_GROW			1098
+#define	WT_STAT_CONN_MEMORY_GROW			1102
 /*! connection: pthread mutex condition wait calls */
-#define	WT_STAT_CONN_COND_WAIT				1099
+#define	WT_STAT_CONN_COND_WAIT				1103
 /*! connection: pthread mutex shared lock read-lock calls */
-#define	WT_STAT_CONN_RWLOCK_READ			1100
+#define	WT_STAT_CONN_RWLOCK_READ			1104
 /*! connection: pthread mutex shared lock write-lock calls */
-#define	WT_STAT_CONN_RWLOCK_WRITE			1101
+#define	WT_STAT_CONN_RWLOCK_WRITE			1105
 /*! connection: total fsync I/Os */
-#define	WT_STAT_CONN_FSYNC_IO				1102
+#define	WT_STAT_CONN_FSYNC_IO				1106
 /*! connection: total read I/Os */
-#define	WT_STAT_CONN_READ_IO				1103
+#define	WT_STAT_CONN_READ_IO				1107
 /*! connection: total write I/Os */
-#define	WT_STAT_CONN_WRITE_IO				1104
+#define	WT_STAT_CONN_WRITE_IO				1108
 /*! cursor: cursor create calls */
-#define	WT_STAT_CONN_CURSOR_CREATE			1105
+#define	WT_STAT_CONN_CURSOR_CREATE			1109
 /*! cursor: cursor insert calls */
-#define	WT_STAT_CONN_CURSOR_INSERT			1106
+#define	WT_STAT_CONN_CURSOR_INSERT			1110
 /*! cursor: cursor next calls */
-#define	WT_STAT_CONN_CURSOR_NEXT			1107
+#define	WT_STAT_CONN_CURSOR_NEXT			1111
 /*! cursor: cursor prev calls */
-#define	WT_STAT_CONN_CURSOR_PREV			1108
+#define	WT_STAT_CONN_CURSOR_PREV			1112
 /*! cursor: cursor remove calls */
-#define	WT_STAT_CONN_CURSOR_REMOVE			1109
+#define	WT_STAT_CONN_CURSOR_REMOVE			1113
 /*! cursor: cursor reset calls */
-#define	WT_STAT_CONN_CURSOR_RESET			1110
+#define	WT_STAT_CONN_CURSOR_RESET			1114
 /*! cursor: cursor restarted searches */
-#define	WT_STAT_CONN_CURSOR_RESTART			1111
+#define	WT_STAT_CONN_CURSOR_RESTART			1115
 /*! cursor: cursor search calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH			1112
+#define	WT_STAT_CONN_CURSOR_SEARCH			1116
 /*! cursor: cursor search near calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH_NEAR			1113
+#define	WT_STAT_CONN_CURSOR_SEARCH_NEAR			1117
 /*! cursor: cursor update calls */
-#define	WT_STAT_CONN_CURSOR_UPDATE			1114
+#define	WT_STAT_CONN_CURSOR_UPDATE			1118
 /*! cursor: truncate calls */
-#define	WT_STAT_CONN_CURSOR_TRUNCATE			1115
+#define	WT_STAT_CONN_CURSOR_TRUNCATE			1119
 /*! data-handle: connection data handles currently active */
-#define	WT_STAT_CONN_DH_CONN_HANDLE_COUNT		1116
+#define	WT_STAT_CONN_DH_CONN_HANDLE_COUNT		1120
 /*! data-handle: connection sweep candidate became referenced */
-#define	WT_STAT_CONN_DH_SWEEP_REF			1117
+#define	WT_STAT_CONN_DH_SWEEP_REF			1121
 /*! data-handle: connection sweep dhandles closed */
-#define	WT_STAT_CONN_DH_SWEEP_CLOSE			1118
+#define	WT_STAT_CONN_DH_SWEEP_CLOSE			1122
 /*! data-handle: connection sweep dhandles removed from hash list */
-#define	WT_STAT_CONN_DH_SWEEP_REMOVE			1119
+#define	WT_STAT_CONN_DH_SWEEP_REMOVE			1123
 /*! data-handle: connection sweep time-of-death sets */
-#define	WT_STAT_CONN_DH_SWEEP_TOD			1120
+#define	WT_STAT_CONN_DH_SWEEP_TOD			1124
 /*! data-handle: connection sweeps */
-#define	WT_STAT_CONN_DH_SWEEPS				1121
+#define	WT_STAT_CONN_DH_SWEEPS				1125
 /*! data-handle: session dhandles swept */
-#define	WT_STAT_CONN_DH_SESSION_HANDLES			1122
+#define	WT_STAT_CONN_DH_SESSION_HANDLES			1126
 /*! data-handle: session sweep attempts */
-#define	WT_STAT_CONN_DH_SESSION_SWEEPS			1123
+#define	WT_STAT_CONN_DH_SESSION_SWEEPS			1127
 /*! lock: checkpoint lock acquisitions */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_COUNT		1124
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_COUNT		1128
 /*! lock: checkpoint lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_APPLICATION	1125
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_APPLICATION	1129
 /*! lock: checkpoint lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_INTERNAL	1126
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_INTERNAL	1130
 /*! lock: handle-list lock acquisitions */
-#define	WT_STAT_CONN_LOCK_HANDLE_LIST_COUNT		1127
+#define	WT_STAT_CONN_LOCK_HANDLE_LIST_COUNT		1131
 /*! lock: handle-list lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_HANDLE_LIST_WAIT_APPLICATION	1128
+#define	WT_STAT_CONN_LOCK_HANDLE_LIST_WAIT_APPLICATION	1132
 /*! lock: handle-list lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_HANDLE_LIST_WAIT_INTERNAL	1129
+#define	WT_STAT_CONN_LOCK_HANDLE_LIST_WAIT_INTERNAL	1133
 /*! lock: metadata lock acquisitions */
-#define	WT_STAT_CONN_LOCK_METADATA_COUNT		1130
+#define	WT_STAT_CONN_LOCK_METADATA_COUNT		1134
 /*! lock: metadata lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_METADATA_WAIT_APPLICATION	1131
+#define	WT_STAT_CONN_LOCK_METADATA_WAIT_APPLICATION	1135
 /*! lock: metadata lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_METADATA_WAIT_INTERNAL	1132
+#define	WT_STAT_CONN_LOCK_METADATA_WAIT_INTERNAL	1136
 /*! lock: schema lock acquisitions */
-#define	WT_STAT_CONN_LOCK_SCHEMA_COUNT			1133
+#define	WT_STAT_CONN_LOCK_SCHEMA_COUNT			1137
 /*! lock: schema lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_APPLICATION	1134
+#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_APPLICATION	1138
 /*! lock: schema lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_INTERNAL		1135
+#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_INTERNAL		1139
 /*! lock: table lock acquisitions */
-#define	WT_STAT_CONN_LOCK_TABLE_COUNT			1136
+#define	WT_STAT_CONN_LOCK_TABLE_COUNT			1140
 /*!
  * lock: table lock application thread time waiting for the table lock
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_TABLE_WAIT_APPLICATION	1137
+#define	WT_STAT_CONN_LOCK_TABLE_WAIT_APPLICATION	1141
 /*!
  * lock: table lock internal thread time waiting for the table lock
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_TABLE_WAIT_INTERNAL		1138
+#define	WT_STAT_CONN_LOCK_TABLE_WAIT_INTERNAL		1142
 /*! log: busy returns attempting to switch slots */
-#define	WT_STAT_CONN_LOG_SLOT_SWITCH_BUSY		1139
+#define	WT_STAT_CONN_LOG_SLOT_SWITCH_BUSY		1143
 /*! log: consolidated slot closures */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSES			1140
+#define	WT_STAT_CONN_LOG_SLOT_CLOSES			1144
 /*! log: consolidated slot join races */
-#define	WT_STAT_CONN_LOG_SLOT_RACES			1141
+#define	WT_STAT_CONN_LOG_SLOT_RACES			1145
 /*! log: consolidated slot join transitions */
-#define	WT_STAT_CONN_LOG_SLOT_TRANSITIONS		1142
+#define	WT_STAT_CONN_LOG_SLOT_TRANSITIONS		1146
 /*! log: consolidated slot joins */
-#define	WT_STAT_CONN_LOG_SLOT_JOINS			1143
+#define	WT_STAT_CONN_LOG_SLOT_JOINS			1147
 /*! log: consolidated slot unbuffered writes */
-#define	WT_STAT_CONN_LOG_SLOT_UNBUFFERED		1144
+#define	WT_STAT_CONN_LOG_SLOT_UNBUFFERED		1148
 /*! log: log bytes of payload data */
-#define	WT_STAT_CONN_LOG_BYTES_PAYLOAD			1145
+#define	WT_STAT_CONN_LOG_BYTES_PAYLOAD			1149
 /*! log: log bytes written */
-#define	WT_STAT_CONN_LOG_BYTES_WRITTEN			1146
+#define	WT_STAT_CONN_LOG_BYTES_WRITTEN			1150
 /*! log: log files manually zero-filled */
-#define	WT_STAT_CONN_LOG_ZERO_FILLS			1147
+#define	WT_STAT_CONN_LOG_ZERO_FILLS			1151
 /*! log: log flush operations */
-#define	WT_STAT_CONN_LOG_FLUSH				1148
+#define	WT_STAT_CONN_LOG_FLUSH				1152
 /*! log: log force write operations */
-#define	WT_STAT_CONN_LOG_FORCE_WRITE			1149
+#define	WT_STAT_CONN_LOG_FORCE_WRITE			1153
 /*! log: log force write operations skipped */
-#define	WT_STAT_CONN_LOG_FORCE_WRITE_SKIP		1150
+#define	WT_STAT_CONN_LOG_FORCE_WRITE_SKIP		1154
 /*! log: log records compressed */
-#define	WT_STAT_CONN_LOG_COMPRESS_WRITES		1151
+#define	WT_STAT_CONN_LOG_COMPRESS_WRITES		1155
 /*! log: log records not compressed */
-#define	WT_STAT_CONN_LOG_COMPRESS_WRITE_FAILS		1152
+#define	WT_STAT_CONN_LOG_COMPRESS_WRITE_FAILS		1156
 /*! log: log records too small to compress */
-#define	WT_STAT_CONN_LOG_COMPRESS_SMALL			1153
+#define	WT_STAT_CONN_LOG_COMPRESS_SMALL			1157
 /*! log: log release advances write LSN */
-#define	WT_STAT_CONN_LOG_RELEASE_WRITE_LSN		1154
+#define	WT_STAT_CONN_LOG_RELEASE_WRITE_LSN		1158
 /*! log: log scan operations */
-#define	WT_STAT_CONN_LOG_SCANS				1155
+#define	WT_STAT_CONN_LOG_SCANS				1159
 /*! log: log scan records requiring two reads */
-#define	WT_STAT_CONN_LOG_SCAN_REREADS			1156
+#define	WT_STAT_CONN_LOG_SCAN_REREADS			1160
 /*! log: log server thread advances write LSN */
-#define	WT_STAT_CONN_LOG_WRITE_LSN			1157
+#define	WT_STAT_CONN_LOG_WRITE_LSN			1161
 /*! log: log server thread write LSN walk skipped */
-#define	WT_STAT_CONN_LOG_WRITE_LSN_SKIP			1158
+#define	WT_STAT_CONN_LOG_WRITE_LSN_SKIP			1162
 /*! log: log sync operations */
-#define	WT_STAT_CONN_LOG_SYNC				1159
+#define	WT_STAT_CONN_LOG_SYNC				1163
 /*! log: log sync time duration (usecs) */
-#define	WT_STAT_CONN_LOG_SYNC_DURATION			1160
+#define	WT_STAT_CONN_LOG_SYNC_DURATION			1164
 /*! log: log sync_dir operations */
-#define	WT_STAT_CONN_LOG_SYNC_DIR			1161
+#define	WT_STAT_CONN_LOG_SYNC_DIR			1165
 /*! log: log sync_dir time duration (usecs) */
-#define	WT_STAT_CONN_LOG_SYNC_DIR_DURATION		1162
+#define	WT_STAT_CONN_LOG_SYNC_DIR_DURATION		1166
 /*! log: log write operations */
-#define	WT_STAT_CONN_LOG_WRITES				1163
+#define	WT_STAT_CONN_LOG_WRITES				1167
 /*! log: logging bytes consolidated */
-#define	WT_STAT_CONN_LOG_SLOT_CONSOLIDATED		1164
+#define	WT_STAT_CONN_LOG_SLOT_CONSOLIDATED		1168
 /*! log: maximum log file size */
-#define	WT_STAT_CONN_LOG_MAX_FILESIZE			1165
+#define	WT_STAT_CONN_LOG_MAX_FILESIZE			1169
 /*! log: number of pre-allocated log files to create */
-#define	WT_STAT_CONN_LOG_PREALLOC_MAX			1166
+#define	WT_STAT_CONN_LOG_PREALLOC_MAX			1170
 /*! log: pre-allocated log files not ready and missed */
-#define	WT_STAT_CONN_LOG_PREALLOC_MISSED		1167
+#define	WT_STAT_CONN_LOG_PREALLOC_MISSED		1171
 /*! log: pre-allocated log files prepared */
-#define	WT_STAT_CONN_LOG_PREALLOC_FILES			1168
+#define	WT_STAT_CONN_LOG_PREALLOC_FILES			1172
 /*! log: pre-allocated log files used */
-#define	WT_STAT_CONN_LOG_PREALLOC_USED			1169
+#define	WT_STAT_CONN_LOG_PREALLOC_USED			1173
 /*! log: records processed by log scan */
-#define	WT_STAT_CONN_LOG_SCAN_RECORDS			1170
+#define	WT_STAT_CONN_LOG_SCAN_RECORDS			1174
 /*! log: total in-memory size of compressed records */
-#define	WT_STAT_CONN_LOG_COMPRESS_MEM			1171
+#define	WT_STAT_CONN_LOG_COMPRESS_MEM			1175
 /*! log: total log buffer size */
-#define	WT_STAT_CONN_LOG_BUFFER_SIZE			1172
+#define	WT_STAT_CONN_LOG_BUFFER_SIZE			1176
 /*! log: total size of compressed records */
-#define	WT_STAT_CONN_LOG_COMPRESS_LEN			1173
+#define	WT_STAT_CONN_LOG_COMPRESS_LEN			1177
 /*! log: written slots coalesced */
-#define	WT_STAT_CONN_LOG_SLOT_COALESCED			1174
+#define	WT_STAT_CONN_LOG_SLOT_COALESCED			1178
 /*! log: yields waiting for previous log file close */
-#define	WT_STAT_CONN_LOG_CLOSE_YIELDS			1175
+#define	WT_STAT_CONN_LOG_CLOSE_YIELDS			1179
 /*! reconciliation: fast-path pages deleted */
-#define	WT_STAT_CONN_REC_PAGE_DELETE_FAST		1176
+#define	WT_STAT_CONN_REC_PAGE_DELETE_FAST		1180
 /*! reconciliation: page reconciliation calls */
-#define	WT_STAT_CONN_REC_PAGES				1177
+#define	WT_STAT_CONN_REC_PAGES				1181
 /*! reconciliation: page reconciliation calls for eviction */
-#define	WT_STAT_CONN_REC_PAGES_EVICTION			1178
+#define	WT_STAT_CONN_REC_PAGES_EVICTION			1182
 /*! reconciliation: pages deleted */
-#define	WT_STAT_CONN_REC_PAGE_DELETE			1179
+#define	WT_STAT_CONN_REC_PAGE_DELETE			1183
 /*! reconciliation: split bytes currently awaiting free */
-#define	WT_STAT_CONN_REC_SPLIT_STASHED_BYTES		1180
+#define	WT_STAT_CONN_REC_SPLIT_STASHED_BYTES		1184
 /*! reconciliation: split objects currently awaiting free */
-#define	WT_STAT_CONN_REC_SPLIT_STASHED_OBJECTS		1181
+#define	WT_STAT_CONN_REC_SPLIT_STASHED_OBJECTS		1185
 /*! session: open cursor count */
-#define	WT_STAT_CONN_SESSION_CURSOR_OPEN		1182
+#define	WT_STAT_CONN_SESSION_CURSOR_OPEN		1186
 /*! session: open session count */
-#define	WT_STAT_CONN_SESSION_OPEN			1183
+#define	WT_STAT_CONN_SESSION_OPEN			1187
 /*! session: table compact failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_FAIL		1184
+#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_FAIL		1188
 /*! session: table compact successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_SUCCESS	1185
+#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_SUCCESS	1189
 /*! session: table create failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_CREATE_FAIL		1186
+#define	WT_STAT_CONN_SESSION_TABLE_CREATE_FAIL		1190
 /*! session: table create successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_CREATE_SUCCESS	1187
+#define	WT_STAT_CONN_SESSION_TABLE_CREATE_SUCCESS	1191
 /*! session: table drop failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_DROP_FAIL		1188
+#define	WT_STAT_CONN_SESSION_TABLE_DROP_FAIL		1192
 /*! session: table drop successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_DROP_SUCCESS		1189
+#define	WT_STAT_CONN_SESSION_TABLE_DROP_SUCCESS		1193
 /*! session: table rebalance failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_FAIL	1190
+#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_FAIL	1194
 /*! session: table rebalance successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_SUCCESS	1191
+#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_SUCCESS	1195
 /*! session: table rename failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_RENAME_FAIL		1192
+#define	WT_STAT_CONN_SESSION_TABLE_RENAME_FAIL		1196
 /*! session: table rename successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_RENAME_SUCCESS	1193
+#define	WT_STAT_CONN_SESSION_TABLE_RENAME_SUCCESS	1197
 /*! session: table salvage failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_FAIL		1194
+#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_FAIL		1198
 /*! session: table salvage successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_SUCCESS	1195
+#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_SUCCESS	1199
 /*! session: table truncate failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_FAIL	1196
+#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_FAIL	1200
 /*! session: table truncate successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_SUCCESS	1197
+#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_SUCCESS	1201
 /*! session: table verify failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_FAIL		1198
+#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_FAIL		1202
 /*! session: table verify successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_SUCCESS	1199
+#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_SUCCESS	1203
 /*! thread-state: active filesystem fsync calls */
-#define	WT_STAT_CONN_THREAD_FSYNC_ACTIVE		1200
+#define	WT_STAT_CONN_THREAD_FSYNC_ACTIVE		1204
 /*! thread-state: active filesystem read calls */
-#define	WT_STAT_CONN_THREAD_READ_ACTIVE			1201
+#define	WT_STAT_CONN_THREAD_READ_ACTIVE			1205
 /*! thread-state: active filesystem write calls */
-#define	WT_STAT_CONN_THREAD_WRITE_ACTIVE		1202
+#define	WT_STAT_CONN_THREAD_WRITE_ACTIVE		1206
 /*! thread-yield: application thread time evicting (usecs) */
-#define	WT_STAT_CONN_APPLICATION_EVICT_TIME		1203
+#define	WT_STAT_CONN_APPLICATION_EVICT_TIME		1207
 /*! thread-yield: application thread time waiting for cache (usecs) */
-#define	WT_STAT_CONN_APPLICATION_CACHE_TIME		1204
+#define	WT_STAT_CONN_APPLICATION_CACHE_TIME		1208
 /*! thread-yield: page acquire busy blocked */
-#define	WT_STAT_CONN_PAGE_BUSY_BLOCKED			1205
+#define	WT_STAT_CONN_PAGE_BUSY_BLOCKED			1209
 /*! thread-yield: page acquire eviction blocked */
-#define	WT_STAT_CONN_PAGE_FORCIBLE_EVICT_BLOCKED	1206
+#define	WT_STAT_CONN_PAGE_FORCIBLE_EVICT_BLOCKED	1210
 /*! thread-yield: page acquire locked blocked */
-#define	WT_STAT_CONN_PAGE_LOCKED_BLOCKED		1207
+#define	WT_STAT_CONN_PAGE_LOCKED_BLOCKED		1211
 /*! thread-yield: page acquire read blocked */
-#define	WT_STAT_CONN_PAGE_READ_BLOCKED			1208
+#define	WT_STAT_CONN_PAGE_READ_BLOCKED			1212
 /*! thread-yield: page acquire time sleeping (usecs) */
-#define	WT_STAT_CONN_PAGE_SLEEP				1209
+#define	WT_STAT_CONN_PAGE_SLEEP				1213
 /*! transaction: number of named snapshots created */
-#define	WT_STAT_CONN_TXN_SNAPSHOTS_CREATED		1210
+#define	WT_STAT_CONN_TXN_SNAPSHOTS_CREATED		1214
 /*! transaction: number of named snapshots dropped */
-#define	WT_STAT_CONN_TXN_SNAPSHOTS_DROPPED		1211
+#define	WT_STAT_CONN_TXN_SNAPSHOTS_DROPPED		1215
 /*! transaction: transaction begins */
-#define	WT_STAT_CONN_TXN_BEGIN				1212
+#define	WT_STAT_CONN_TXN_BEGIN				1216
 /*! transaction: transaction checkpoint currently running */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_RUNNING		1213
+#define	WT_STAT_CONN_TXN_CHECKPOINT_RUNNING		1217
 /*! transaction: transaction checkpoint generation */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_GENERATION		1214
+#define	WT_STAT_CONN_TXN_CHECKPOINT_GENERATION		1218
 /*! transaction: transaction checkpoint max time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MAX		1215
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MAX		1219
 /*! transaction: transaction checkpoint min time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MIN		1216
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MIN		1220
 /*! transaction: transaction checkpoint most recent time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_RECENT		1217
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_RECENT		1221
 /*! transaction: transaction checkpoint scrub dirty target */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TARGET	1218
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TARGET	1222
 /*! transaction: transaction checkpoint scrub time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TIME		1219
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TIME		1223
 /*! transaction: transaction checkpoint total time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_TOTAL		1220
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_TOTAL		1224
 /*! transaction: transaction checkpoints */
-#define	WT_STAT_CONN_TXN_CHECKPOINT			1221
+#define	WT_STAT_CONN_TXN_CHECKPOINT			1225
 /*!
  * transaction: transaction checkpoints skipped because database was
  * clean
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SKIPPED		1222
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SKIPPED		1226
 /*! transaction: transaction failures due to cache overflow */
-#define	WT_STAT_CONN_TXN_FAIL_CACHE			1223
+#define	WT_STAT_CONN_TXN_FAIL_CACHE			1227
 /*!
  * transaction: transaction fsync calls for checkpoint after allocating
  * the transaction ID
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST		1224
+#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST		1228
 /*!
  * transaction: transaction fsync duration for checkpoint after
  * allocating the transaction ID (usecs)
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST_DURATION	1225
+#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST_DURATION	1229
 /*! transaction: transaction range of IDs currently pinned */
-#define	WT_STAT_CONN_TXN_PINNED_RANGE			1226
+#define	WT_STAT_CONN_TXN_PINNED_RANGE			1230
 /*! transaction: transaction range of IDs currently pinned by a checkpoint */
-#define	WT_STAT_CONN_TXN_PINNED_CHECKPOINT_RANGE	1227
+#define	WT_STAT_CONN_TXN_PINNED_CHECKPOINT_RANGE	1231
 /*!
  * transaction: transaction range of IDs currently pinned by named
  * snapshots
  */
-#define	WT_STAT_CONN_TXN_PINNED_SNAPSHOT_RANGE		1228
+#define	WT_STAT_CONN_TXN_PINNED_SNAPSHOT_RANGE		1232
 /*! transaction: transaction sync calls */
-#define	WT_STAT_CONN_TXN_SYNC				1229
+#define	WT_STAT_CONN_TXN_SYNC				1233
 /*! transaction: transactions committed */
-#define	WT_STAT_CONN_TXN_COMMIT				1230
+#define	WT_STAT_CONN_TXN_COMMIT				1234
 /*! transaction: transactions rolled back */
-#define	WT_STAT_CONN_TXN_ROLLBACK			1231
+#define	WT_STAT_CONN_TXN_ROLLBACK			1235
 
 /*!
  * @}
diff --git a/src/support/stat.c b/src/support/stat.c
index d6457ed64bb..6e8e218a0db 100644
--- a/src/support/stat.c
+++ b/src/support/stat.c
@@ -639,6 +639,10 @@ static const char * const __stats_connection_desc[] = {
 	"block-manager: bytes written for checkpoint",
 	"block-manager: mapped blocks read",
 	"block-manager: mapped bytes read",
+	"cache: application threads page read from disk to cache count",
+	"cache: application threads page read from disk to cache time (usecs)",
+	"cache: application threads page write from cache to disk count",
+	"cache: application threads page write from cache to disk time (usecs)",
 	"cache: bytes belonging to page images in the cache",
 	"cache: bytes currently in the cache",
 	"cache: bytes not belonging to page images in the cache",
@@ -901,6 +905,10 @@ __wt_stat_connection_clear_single(WT_CONNECTION_STATS *stats)
 	stats->block_byte_write_checkpoint = 0;
 	stats->block_map_read = 0;
 	stats->block_byte_map_read = 0;
+	stats->cache_read_app_count = 0;
+	stats->cache_read_app_time = 0;
+	stats->cache_write_app_count = 0;
+	stats->cache_write_app_time = 0;
 		/* not clearing cache_bytes_image */
 		/* not clearing cache_bytes_inuse */
 		/* not clearing cache_bytes_other */
@@ -1156,6 +1164,11 @@ __wt_stat_connection_aggregate(
 	    WT_STAT_READ(from, block_byte_write_checkpoint);
 	to->block_map_read += WT_STAT_READ(from, block_map_read);
 	to->block_byte_map_read += WT_STAT_READ(from, block_byte_map_read);
+	to->cache_read_app_count += WT_STAT_READ(from, cache_read_app_count);
+	to->cache_read_app_time += WT_STAT_READ(from, cache_read_app_time);
+	to->cache_write_app_count +=
+	    WT_STAT_READ(from, cache_write_app_count);
+	to->cache_write_app_time += WT_STAT_READ(from, cache_write_app_time);
 	to->cache_bytes_image += WT_STAT_READ(from, cache_bytes_image);
 	to->cache_bytes_inuse += WT_STAT_READ(from, cache_bytes_inuse);
 	to->cache_bytes_other += WT_STAT_READ(from, cache_bytes_other);