WT-3258 Add timers tracking time spent on failed evictions of large p… (#3428)

5 files changed, 262 insertions, 209 deletions

diff --git a/dist/stat_data.py b/dist/stat_data.py
index 203a88fb055..acc156b947e 100644
--- a/dist/stat_data.py
+++ b/dist/stat_data.py
@@ -204,9 +204,12 @@ connection_stats = [
     CacheStat('cache_eviction_dirty', 'modified pages evicted'),
     CacheStat('cache_eviction_empty_score', 'eviction empty score', 'no_clear,no_scale'),
     CacheStat('cache_eviction_fail', 'pages selected for eviction unable to be evicted'),
-    CacheStat('cache_eviction_force', 'pages evicted because they exceeded the in-memory maximum'),
-    CacheStat('cache_eviction_force_delete', 'pages evicted because they had chains of deleted items'),
-    CacheStat('cache_eviction_force_fail', 'failed eviction of pages that exceeded the in-memory maximum'),
+    CacheStat('cache_eviction_force', 'pages evicted because they exceeded the in-memory maximum count'),
+    CacheStat('cache_eviction_force_time', 'pages evicted because they exceeded the in-memory maximum time (usecs)'),
+    CacheStat('cache_eviction_force_delete', 'pages evicted because they had chains of deleted items count'),
+    CacheStat('cache_eviction_force_delete_time', 'pages evicted because they had chains of deleted items time (usecs)'),
+    CacheStat('cache_eviction_force_fail', 'failed eviction of pages that exceeded the in-memory maximum count'),
+    CacheStat('cache_eviction_force_fail_time',  'failed eviction of pages that exceeded the in-memory maximum time (usecs)'),
     CacheStat('cache_eviction_force_retune', 'force re-tuning of eviction workers once in a while'),
     CacheStat('cache_eviction_get_ref', 'eviction calls to get a page'),
     CacheStat('cache_eviction_get_ref_empty', 'eviction calls to get a page found queue empty'),
diff --git a/src/evict/evict_page.c b/src/evict/evict_page.c
index 80aba818153..01818f106fc 100644
--- a/src/evict/evict_page.c
+++ b/src/evict/evict_page.c
@@ -55,10 +55,12 @@ __wt_page_release_evict(WT_SESSION_IMPL *session, WT_REF *ref)
 	WT_BTREE *btree;
 	WT_DECL_RET;
 	WT_PAGE *page;
+	struct timespec start, stop;
 	bool locked, too_big;
 
 	btree = S2BT(session);
 	page = ref->page;
+	__wt_epoch(session, &start);
 
 	/*
 	 * Take some care with order of operations: if we release the hazard
@@ -75,19 +77,34 @@ __wt_page_release_evict(WT_SESSION_IMPL *session, WT_REF *ref)
 	(void)__wt_atomic_addv32(&btree->evict_busy, 1);
 
 	too_big = page->memory_footprint >= btree->splitmempage;
-	if ((ret = __wt_evict(session, ref, false)) == 0) {
-		if (too_big)
+
+	/*
+	 * Track how long the call to evict took. If eviction is successful then
+	 * we have one of two pairs of stats to increment.
+	 */
+	ret = __wt_evict(session, ref, false);
+	__wt_epoch(session, &stop);
+	if (ret == 0) {
+		if (too_big) {
 			WT_STAT_CONN_INCR(session, cache_eviction_force);
-		else
+			WT_STAT_CONN_INCRV(session, cache_eviction_force_time,
+			    WT_TIMEDIFF_US(stop, start));
+		} else {
 			/*
 			 * If the page isn't too big, we are evicting it because
 			 * it had a chain of deleted entries that make traversal
 			 * expensive.
 			 */
-			WT_STAT_CONN_INCR(
-			    session, cache_eviction_force_delete);
-	} else
+			WT_STAT_CONN_INCR(session, cache_eviction_force_delete);
+			WT_STAT_CONN_INCRV(session,
+			    cache_eviction_force_delete_time,
+			    WT_TIMEDIFF_US(stop, start));
+		}
+	} else {
 		WT_STAT_CONN_INCR(session, cache_eviction_force_fail);
+		WT_STAT_CONN_INCRV(session, cache_eviction_force_fail_time,
+		    WT_TIMEDIFF_US(stop, start));
+	}
 
 	(void)__wt_atomic_subv32(&btree->evict_busy, 1);
 
diff --git a/src/include/stat.h b/src/include/stat.h
index fa62cf27693..7c2529f1746 100644
--- a/src/include/stat.h
+++ b/src/include/stat.h
@@ -316,6 +316,7 @@ struct __wt_connection_stats {
 	int64_t cache_eviction_worker_removed;
 	int64_t cache_eviction_stable_state_workers;
 	int64_t cache_eviction_force_fail;
+	int64_t cache_eviction_force_fail_time;
 	int64_t cache_eviction_walks_active;
 	int64_t cache_eviction_walks_started;
 	int64_t cache_eviction_force_retune;
@@ -340,7 +341,9 @@ struct __wt_connection_stats {
 	int64_t cache_write_lookaside;
 	int64_t cache_pages_inuse;
 	int64_t cache_eviction_force;
+	int64_t cache_eviction_force_time;
 	int64_t cache_eviction_force_delete;
+	int64_t cache_eviction_force_delete_time;
 	int64_t cache_eviction_app;
 	int64_t cache_eviction_pages_queued;
 	int64_t cache_eviction_pages_queued_urgent;
diff --git a/src/include/wiredtiger.in b/src/include/wiredtiger.in
index 5e76b2915b1..2bbe812d7f7 100644
--- a/src/include/wiredtiger.in
+++ b/src/include/wiredtiger.in
@@ -4560,414 +4560,432 @@ extern int wiredtiger_extension_terminate(WT_CONNECTION *connection);
 #define	WT_STAT_CONN_CACHE_EVICTION_WORKER_REMOVED	1056
 /*! cache: eviction worker thread stable number */
 #define	WT_STAT_CONN_CACHE_EVICTION_STABLE_STATE_WORKERS	1057
-/*! cache: failed eviction of pages that exceeded the in-memory maximum */
+/*!
+ * cache: failed eviction of pages that exceeded the in-memory maximum
+ * count
+ */
 #define	WT_STAT_CONN_CACHE_EVICTION_FORCE_FAIL		1058
+/*!
+ * cache: failed eviction of pages that exceeded the in-memory maximum
+ * time (usecs)
+ */
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_FAIL_TIME	1059
 /*! cache: files with active eviction walks */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_ACTIVE	1059
+#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_ACTIVE	1060
 /*! cache: files with new eviction walks started */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_STARTED	1060
+#define	WT_STAT_CONN_CACHE_EVICTION_WALKS_STARTED	1061
 /*! cache: force re-tuning of eviction workers once in a while */
-#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_RETUNE	1061
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_RETUNE	1062
 /*! cache: hazard pointer blocked page eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_HAZARD		1062
+#define	WT_STAT_CONN_CACHE_EVICTION_HAZARD		1063
 /*! cache: hazard pointer check calls */
-#define	WT_STAT_CONN_CACHE_HAZARD_CHECKS		1063
+#define	WT_STAT_CONN_CACHE_HAZARD_CHECKS		1064
 /*! cache: hazard pointer check entries walked */
-#define	WT_STAT_CONN_CACHE_HAZARD_WALKS			1064
+#define	WT_STAT_CONN_CACHE_HAZARD_WALKS			1065
 /*! cache: hazard pointer maximum array length */
-#define	WT_STAT_CONN_CACHE_HAZARD_MAX			1065
+#define	WT_STAT_CONN_CACHE_HAZARD_MAX			1066
 /*! cache: in-memory page passed criteria to be split */
-#define	WT_STAT_CONN_CACHE_INMEM_SPLITTABLE		1066
+#define	WT_STAT_CONN_CACHE_INMEM_SPLITTABLE		1067
 /*! cache: in-memory page splits */
-#define	WT_STAT_CONN_CACHE_INMEM_SPLIT			1067
+#define	WT_STAT_CONN_CACHE_INMEM_SPLIT			1068
 /*! cache: internal pages evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_INTERNAL		1068
+#define	WT_STAT_CONN_CACHE_EVICTION_INTERNAL		1069
 /*! cache: internal pages split during eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_INTERNAL	1069
+#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_INTERNAL	1070
 /*! cache: leaf pages split during eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_LEAF		1070
+#define	WT_STAT_CONN_CACHE_EVICTION_SPLIT_LEAF		1071
 /*! cache: lookaside table insert calls */
-#define	WT_STAT_CONN_CACHE_LOOKASIDE_INSERT		1071
+#define	WT_STAT_CONN_CACHE_LOOKASIDE_INSERT		1072
 /*! cache: lookaside table remove calls */
-#define	WT_STAT_CONN_CACHE_LOOKASIDE_REMOVE		1072
+#define	WT_STAT_CONN_CACHE_LOOKASIDE_REMOVE		1073
 /*! cache: maximum bytes configured */
-#define	WT_STAT_CONN_CACHE_BYTES_MAX			1073
+#define	WT_STAT_CONN_CACHE_BYTES_MAX			1074
 /*! cache: maximum page size at eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_MAXIMUM_PAGE_SIZE	1074
+#define	WT_STAT_CONN_CACHE_EVICTION_MAXIMUM_PAGE_SIZE	1075
 /*! cache: modified pages evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_DIRTY		1075
+#define	WT_STAT_CONN_CACHE_EVICTION_DIRTY		1076
 /*! cache: modified pages evicted by application threads */
-#define	WT_STAT_CONN_CACHE_EVICTION_APP_DIRTY		1076
+#define	WT_STAT_CONN_CACHE_EVICTION_APP_DIRTY		1077
 /*! cache: overflow pages read into cache */
-#define	WT_STAT_CONN_CACHE_READ_OVERFLOW		1077
+#define	WT_STAT_CONN_CACHE_READ_OVERFLOW		1078
 /*! cache: overflow values cached in memory */
-#define	WT_STAT_CONN_CACHE_OVERFLOW_VALUE		1078
+#define	WT_STAT_CONN_CACHE_OVERFLOW_VALUE		1079
 /*! cache: page split during eviction deepened the tree */
-#define	WT_STAT_CONN_CACHE_EVICTION_DEEPEN		1079
+#define	WT_STAT_CONN_CACHE_EVICTION_DEEPEN		1080
 /*! cache: page written requiring lookaside records */
-#define	WT_STAT_CONN_CACHE_WRITE_LOOKASIDE		1080
+#define	WT_STAT_CONN_CACHE_WRITE_LOOKASIDE		1081
 /*! cache: pages currently held in the cache */
-#define	WT_STAT_CONN_CACHE_PAGES_INUSE			1081
-/*! cache: pages evicted because they exceeded the in-memory maximum */
-#define	WT_STAT_CONN_CACHE_EVICTION_FORCE		1082
-/*! cache: pages evicted because they had chains of deleted items */
-#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_DELETE	1083
+#define	WT_STAT_CONN_CACHE_PAGES_INUSE			1082
+/*! cache: pages evicted because they exceeded the in-memory maximum count */
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE		1083
+/*!
+ * cache: pages evicted because they exceeded the in-memory maximum time
+ * (usecs)
+ */
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_TIME		1084
+/*! cache: pages evicted because they had chains of deleted items count */
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_DELETE	1085
+/*!
+ * cache: pages evicted because they had chains of deleted items time
+ * (usecs)
+ */
+#define	WT_STAT_CONN_CACHE_EVICTION_FORCE_DELETE_TIME	1086
 /*! cache: pages evicted by application threads */
-#define	WT_STAT_CONN_CACHE_EVICTION_APP			1084
+#define	WT_STAT_CONN_CACHE_EVICTION_APP			1087
 /*! cache: pages queued for eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED	1085
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED	1088
 /*! cache: pages queued for urgent eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_URGENT	1086
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_URGENT	1089
 /*! cache: pages queued for urgent eviction during walk */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_OLDEST	1087
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_QUEUED_OLDEST	1090
 /*! cache: pages read into cache */
-#define	WT_STAT_CONN_CACHE_READ				1088
+#define	WT_STAT_CONN_CACHE_READ				1091
 /*! cache: pages read into cache requiring lookaside entries */
-#define	WT_STAT_CONN_CACHE_READ_LOOKASIDE		1089
+#define	WT_STAT_CONN_CACHE_READ_LOOKASIDE		1092
 /*! cache: pages requested from the cache */
-#define	WT_STAT_CONN_CACHE_PAGES_REQUESTED		1090
+#define	WT_STAT_CONN_CACHE_PAGES_REQUESTED		1093
 /*! cache: pages seen by eviction walk */
-#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_SEEN		1091
+#define	WT_STAT_CONN_CACHE_EVICTION_PAGES_SEEN		1094
 /*! cache: pages selected for eviction unable to be evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_FAIL		1092
+#define	WT_STAT_CONN_CACHE_EVICTION_FAIL		1095
 /*! cache: pages walked for eviction */
-#define	WT_STAT_CONN_CACHE_EVICTION_WALK		1093
+#define	WT_STAT_CONN_CACHE_EVICTION_WALK		1096
 /*! cache: pages written from cache */
-#define	WT_STAT_CONN_CACHE_WRITE			1094
+#define	WT_STAT_CONN_CACHE_WRITE			1097
 /*! cache: pages written requiring in-memory restoration */
-#define	WT_STAT_CONN_CACHE_WRITE_RESTORE		1095
+#define	WT_STAT_CONN_CACHE_WRITE_RESTORE		1098
 /*! cache: percentage overhead */
-#define	WT_STAT_CONN_CACHE_OVERHEAD			1096
+#define	WT_STAT_CONN_CACHE_OVERHEAD			1099
 /*! cache: tracked bytes belonging to internal pages in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_INTERNAL		1097
+#define	WT_STAT_CONN_CACHE_BYTES_INTERNAL		1100
 /*! cache: tracked bytes belonging to leaf pages in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_LEAF			1098
+#define	WT_STAT_CONN_CACHE_BYTES_LEAF			1101
 /*! cache: tracked dirty bytes in the cache */
-#define	WT_STAT_CONN_CACHE_BYTES_DIRTY			1099
+#define	WT_STAT_CONN_CACHE_BYTES_DIRTY			1102
 /*! cache: tracked dirty pages in the cache */
-#define	WT_STAT_CONN_CACHE_PAGES_DIRTY			1100
+#define	WT_STAT_CONN_CACHE_PAGES_DIRTY			1103
 /*! cache: unmodified pages evicted */
-#define	WT_STAT_CONN_CACHE_EVICTION_CLEAN		1101
+#define	WT_STAT_CONN_CACHE_EVICTION_CLEAN		1104
 /*! connection: auto adjusting condition resets */
-#define	WT_STAT_CONN_COND_AUTO_WAIT_RESET		1102
+#define	WT_STAT_CONN_COND_AUTO_WAIT_RESET		1105
 /*! connection: auto adjusting condition wait calls */
-#define	WT_STAT_CONN_COND_AUTO_WAIT			1103
+#define	WT_STAT_CONN_COND_AUTO_WAIT			1106
 /*! connection: detected system time went backwards */
-#define	WT_STAT_CONN_TIME_TRAVEL			1104
+#define	WT_STAT_CONN_TIME_TRAVEL			1107
 /*! connection: files currently open */
-#define	WT_STAT_CONN_FILE_OPEN				1105
+#define	WT_STAT_CONN_FILE_OPEN				1108
 /*! connection: memory allocations */
-#define	WT_STAT_CONN_MEMORY_ALLOCATION			1106
+#define	WT_STAT_CONN_MEMORY_ALLOCATION			1109
 /*! connection: memory frees */
-#define	WT_STAT_CONN_MEMORY_FREE			1107
+#define	WT_STAT_CONN_MEMORY_FREE			1110
 /*! connection: memory re-allocations */
-#define	WT_STAT_CONN_MEMORY_GROW			1108
+#define	WT_STAT_CONN_MEMORY_GROW			1111
 /*! connection: pthread mutex condition wait calls */
-#define	WT_STAT_CONN_COND_WAIT				1109
+#define	WT_STAT_CONN_COND_WAIT				1112
 /*! connection: pthread mutex shared lock read-lock calls */
-#define	WT_STAT_CONN_RWLOCK_READ			1110
+#define	WT_STAT_CONN_RWLOCK_READ			1113
 /*! connection: pthread mutex shared lock write-lock calls */
-#define	WT_STAT_CONN_RWLOCK_WRITE			1111
+#define	WT_STAT_CONN_RWLOCK_WRITE			1114
 /*! connection: total fsync I/Os */
-#define	WT_STAT_CONN_FSYNC_IO				1112
+#define	WT_STAT_CONN_FSYNC_IO				1115
 /*! connection: total read I/Os */
-#define	WT_STAT_CONN_READ_IO				1113
+#define	WT_STAT_CONN_READ_IO				1116
 /*! connection: total write I/Os */
-#define	WT_STAT_CONN_WRITE_IO				1114
+#define	WT_STAT_CONN_WRITE_IO				1117
 /*! cursor: cursor create calls */
-#define	WT_STAT_CONN_CURSOR_CREATE			1115
+#define	WT_STAT_CONN_CURSOR_CREATE			1118
 /*! cursor: cursor insert calls */
-#define	WT_STAT_CONN_CURSOR_INSERT			1116
+#define	WT_STAT_CONN_CURSOR_INSERT			1119
 /*! cursor: cursor modify calls */
-#define	WT_STAT_CONN_CURSOR_MODIFY			1117
+#define	WT_STAT_CONN_CURSOR_MODIFY			1120
 /*! cursor: cursor next calls */
-#define	WT_STAT_CONN_CURSOR_NEXT			1118
+#define	WT_STAT_CONN_CURSOR_NEXT			1121
 /*! cursor: cursor prev calls */
-#define	WT_STAT_CONN_CURSOR_PREV			1119
+#define	WT_STAT_CONN_CURSOR_PREV			1122
 /*! cursor: cursor remove calls */
-#define	WT_STAT_CONN_CURSOR_REMOVE			1120
+#define	WT_STAT_CONN_CURSOR_REMOVE			1123
 /*! cursor: cursor reserve calls */
-#define	WT_STAT_CONN_CURSOR_RESERVE			1121
+#define	WT_STAT_CONN_CURSOR_RESERVE			1124
 /*! cursor: cursor reset calls */
-#define	WT_STAT_CONN_CURSOR_RESET			1122
+#define	WT_STAT_CONN_CURSOR_RESET			1125
 /*! cursor: cursor restarted searches */
-#define	WT_STAT_CONN_CURSOR_RESTART			1123
+#define	WT_STAT_CONN_CURSOR_RESTART			1126
 /*! cursor: cursor search calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH			1124
+#define	WT_STAT_CONN_CURSOR_SEARCH			1127
 /*! cursor: cursor search near calls */
-#define	WT_STAT_CONN_CURSOR_SEARCH_NEAR			1125
+#define	WT_STAT_CONN_CURSOR_SEARCH_NEAR			1128
 /*! cursor: cursor update calls */
-#define	WT_STAT_CONN_CURSOR_UPDATE			1126
+#define	WT_STAT_CONN_CURSOR_UPDATE			1129
 /*! cursor: truncate calls */
-#define	WT_STAT_CONN_CURSOR_TRUNCATE			1127
+#define	WT_STAT_CONN_CURSOR_TRUNCATE			1130
 /*! data-handle: connection data handles currently active */
-#define	WT_STAT_CONN_DH_CONN_HANDLE_COUNT		1128
+#define	WT_STAT_CONN_DH_CONN_HANDLE_COUNT		1131
 /*! data-handle: connection sweep candidate became referenced */
-#define	WT_STAT_CONN_DH_SWEEP_REF			1129
+#define	WT_STAT_CONN_DH_SWEEP_REF			1132
 /*! data-handle: connection sweep dhandles closed */
-#define	WT_STAT_CONN_DH_SWEEP_CLOSE			1130
+#define	WT_STAT_CONN_DH_SWEEP_CLOSE			1133
 /*! data-handle: connection sweep dhandles removed from hash list */
-#define	WT_STAT_CONN_DH_SWEEP_REMOVE			1131
+#define	WT_STAT_CONN_DH_SWEEP_REMOVE			1134
 /*! data-handle: connection sweep time-of-death sets */
-#define	WT_STAT_CONN_DH_SWEEP_TOD			1132
+#define	WT_STAT_CONN_DH_SWEEP_TOD			1135
 /*! data-handle: connection sweeps */
-#define	WT_STAT_CONN_DH_SWEEPS				1133
+#define	WT_STAT_CONN_DH_SWEEPS				1136
 /*! data-handle: session dhandles swept */
-#define	WT_STAT_CONN_DH_SESSION_HANDLES			1134
+#define	WT_STAT_CONN_DH_SESSION_HANDLES			1137
 /*! data-handle: session sweep attempts */
-#define	WT_STAT_CONN_DH_SESSION_SWEEPS			1135
+#define	WT_STAT_CONN_DH_SESSION_SWEEPS			1138
 /*! lock: checkpoint lock acquisitions */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_COUNT		1136
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_COUNT		1139
 /*! lock: checkpoint lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_APPLICATION	1137
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_APPLICATION	1140
 /*! lock: checkpoint lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_INTERNAL	1138
+#define	WT_STAT_CONN_LOCK_CHECKPOINT_WAIT_INTERNAL	1141
 /*! lock: handle-list lock eviction thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_HANDLE_LIST_WAIT_EVICTION	1139
+#define	WT_STAT_CONN_LOCK_HANDLE_LIST_WAIT_EVICTION	1142
 /*! lock: metadata lock acquisitions */
-#define	WT_STAT_CONN_LOCK_METADATA_COUNT		1140
+#define	WT_STAT_CONN_LOCK_METADATA_COUNT		1143
 /*! lock: metadata lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_METADATA_WAIT_APPLICATION	1141
+#define	WT_STAT_CONN_LOCK_METADATA_WAIT_APPLICATION	1144
 /*! lock: metadata lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_METADATA_WAIT_INTERNAL	1142
+#define	WT_STAT_CONN_LOCK_METADATA_WAIT_INTERNAL	1145
 /*! lock: schema lock acquisitions */
-#define	WT_STAT_CONN_LOCK_SCHEMA_COUNT			1143
+#define	WT_STAT_CONN_LOCK_SCHEMA_COUNT			1146
 /*! lock: schema lock application thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_APPLICATION	1144
+#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_APPLICATION	1147
 /*! lock: schema lock internal thread wait time (usecs) */
-#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_INTERNAL		1145
+#define	WT_STAT_CONN_LOCK_SCHEMA_WAIT_INTERNAL		1148
 /*! lock: table lock acquisitions */
-#define	WT_STAT_CONN_LOCK_TABLE_COUNT			1146
+#define	WT_STAT_CONN_LOCK_TABLE_COUNT			1149
 /*!
  * lock: table lock application thread time waiting for the table lock
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_TABLE_WAIT_APPLICATION	1147
+#define	WT_STAT_CONN_LOCK_TABLE_WAIT_APPLICATION	1150
 /*!
  * lock: table lock internal thread time waiting for the table lock
  * (usecs)
  */
-#define	WT_STAT_CONN_LOCK_TABLE_WAIT_INTERNAL		1148
+#define	WT_STAT_CONN_LOCK_TABLE_WAIT_INTERNAL		1151
 /*! log: busy returns attempting to switch slots */
-#define	WT_STAT_CONN_LOG_SLOT_SWITCH_BUSY		1149
+#define	WT_STAT_CONN_LOG_SLOT_SWITCH_BUSY		1152
 /*! log: log bytes of payload data */
-#define	WT_STAT_CONN_LOG_BYTES_PAYLOAD			1150
+#define	WT_STAT_CONN_LOG_BYTES_PAYLOAD			1153
 /*! log: log bytes written */
-#define	WT_STAT_CONN_LOG_BYTES_WRITTEN			1151
+#define	WT_STAT_CONN_LOG_BYTES_WRITTEN			1154
 /*! log: log files manually zero-filled */
-#define	WT_STAT_CONN_LOG_ZERO_FILLS			1152
+#define	WT_STAT_CONN_LOG_ZERO_FILLS			1155
 /*! log: log flush operations */
-#define	WT_STAT_CONN_LOG_FLUSH				1153
+#define	WT_STAT_CONN_LOG_FLUSH				1156
 /*! log: log force write operations */
-#define	WT_STAT_CONN_LOG_FORCE_WRITE			1154
+#define	WT_STAT_CONN_LOG_FORCE_WRITE			1157
 /*! log: log force write operations skipped */
-#define	WT_STAT_CONN_LOG_FORCE_WRITE_SKIP		1155
+#define	WT_STAT_CONN_LOG_FORCE_WRITE_SKIP		1158
 /*! log: log records compressed */
-#define	WT_STAT_CONN_LOG_COMPRESS_WRITES		1156
+#define	WT_STAT_CONN_LOG_COMPRESS_WRITES		1159
 /*! log: log records not compressed */
-#define	WT_STAT_CONN_LOG_COMPRESS_WRITE_FAILS		1157
+#define	WT_STAT_CONN_LOG_COMPRESS_WRITE_FAILS		1160
 /*! log: log records too small to compress */
-#define	WT_STAT_CONN_LOG_COMPRESS_SMALL			1158
+#define	WT_STAT_CONN_LOG_COMPRESS_SMALL			1161
 /*! log: log release advances write LSN */
-#define	WT_STAT_CONN_LOG_RELEASE_WRITE_LSN		1159
+#define	WT_STAT_CONN_LOG_RELEASE_WRITE_LSN		1162
 /*! log: log scan operations */
-#define	WT_STAT_CONN_LOG_SCANS				1160
+#define	WT_STAT_CONN_LOG_SCANS				1163
 /*! log: log scan records requiring two reads */
-#define	WT_STAT_CONN_LOG_SCAN_REREADS			1161
+#define	WT_STAT_CONN_LOG_SCAN_REREADS			1164
 /*! log: log server thread advances write LSN */
-#define	WT_STAT_CONN_LOG_WRITE_LSN			1162
+#define	WT_STAT_CONN_LOG_WRITE_LSN			1165
 /*! log: log server thread write LSN walk skipped */
-#define	WT_STAT_CONN_LOG_WRITE_LSN_SKIP			1163
+#define	WT_STAT_CONN_LOG_WRITE_LSN_SKIP			1166
 /*! log: log sync operations */
-#define	WT_STAT_CONN_LOG_SYNC				1164
+#define	WT_STAT_CONN_LOG_SYNC				1167
 /*! log: log sync time duration (usecs) */
-#define	WT_STAT_CONN_LOG_SYNC_DURATION			1165
+#define	WT_STAT_CONN_LOG_SYNC_DURATION			1168
 /*! log: log sync_dir operations */
-#define	WT_STAT_CONN_LOG_SYNC_DIR			1166
+#define	WT_STAT_CONN_LOG_SYNC_DIR			1169
 /*! log: log sync_dir time duration (usecs) */
-#define	WT_STAT_CONN_LOG_SYNC_DIR_DURATION		1167
+#define	WT_STAT_CONN_LOG_SYNC_DIR_DURATION		1170
 /*! log: log write operations */
-#define	WT_STAT_CONN_LOG_WRITES				1168
+#define	WT_STAT_CONN_LOG_WRITES				1171
 /*! log: logging bytes consolidated */
-#define	WT_STAT_CONN_LOG_SLOT_CONSOLIDATED		1169
+#define	WT_STAT_CONN_LOG_SLOT_CONSOLIDATED		1172
 /*! log: maximum log file size */
-#define	WT_STAT_CONN_LOG_MAX_FILESIZE			1170
+#define	WT_STAT_CONN_LOG_MAX_FILESIZE			1173
 /*! log: number of pre-allocated log files to create */
-#define	WT_STAT_CONN_LOG_PREALLOC_MAX			1171
+#define	WT_STAT_CONN_LOG_PREALLOC_MAX			1174
 /*! log: pre-allocated log files not ready and missed */
-#define	WT_STAT_CONN_LOG_PREALLOC_MISSED		1172
+#define	WT_STAT_CONN_LOG_PREALLOC_MISSED		1175
 /*! log: pre-allocated log files prepared */
-#define	WT_STAT_CONN_LOG_PREALLOC_FILES			1173
+#define	WT_STAT_CONN_LOG_PREALLOC_FILES			1176
 /*! log: pre-allocated log files used */
-#define	WT_STAT_CONN_LOG_PREALLOC_USED			1174
+#define	WT_STAT_CONN_LOG_PREALLOC_USED			1177
 /*! log: records processed by log scan */
-#define	WT_STAT_CONN_LOG_SCAN_RECORDS			1175
+#define	WT_STAT_CONN_LOG_SCAN_RECORDS			1178
 /*! log: slot close lost race */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSE_RACE		1176
+#define	WT_STAT_CONN_LOG_SLOT_CLOSE_RACE		1179
 /*! log: slot close unbuffered waits */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSE_UNBUF		1177
+#define	WT_STAT_CONN_LOG_SLOT_CLOSE_UNBUF		1180
 /*! log: slot closures */
-#define	WT_STAT_CONN_LOG_SLOT_CLOSES			1178
+#define	WT_STAT_CONN_LOG_SLOT_CLOSES			1181
 /*! log: slot join atomic update races */
-#define	WT_STAT_CONN_LOG_SLOT_RACES			1179
+#define	WT_STAT_CONN_LOG_SLOT_RACES			1182
 /*! log: slot join calls atomic updates raced */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_RACE		1180
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_RACE		1183
 /*! log: slot join calls did not yield */
-#define	WT_STAT_CONN_LOG_SLOT_IMMEDIATE			1181
+#define	WT_STAT_CONN_LOG_SLOT_IMMEDIATE			1184
 /*! log: slot join calls found active slot closed */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_CLOSE		1182
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_CLOSE		1185
 /*! log: slot join calls slept */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_SLEEP		1183
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_SLEEP		1186
 /*! log: slot join calls yielded */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD			1184
+#define	WT_STAT_CONN_LOG_SLOT_YIELD			1187
 /*! log: slot join found active slot closed */
-#define	WT_STAT_CONN_LOG_SLOT_ACTIVE_CLOSED		1185
+#define	WT_STAT_CONN_LOG_SLOT_ACTIVE_CLOSED		1188
 /*! log: slot joins yield time (usecs) */
-#define	WT_STAT_CONN_LOG_SLOT_YIELD_DURATION		1186
+#define	WT_STAT_CONN_LOG_SLOT_YIELD_DURATION		1189
 /*! log: slot transitions unable to find free slot */
-#define	WT_STAT_CONN_LOG_SLOT_NO_FREE_SLOTS		1187
+#define	WT_STAT_CONN_LOG_SLOT_NO_FREE_SLOTS		1190
 /*! log: slot unbuffered writes */
-#define	WT_STAT_CONN_LOG_SLOT_UNBUFFERED		1188
+#define	WT_STAT_CONN_LOG_SLOT_UNBUFFERED		1191
 /*! log: total in-memory size of compressed records */
-#define	WT_STAT_CONN_LOG_COMPRESS_MEM			1189
+#define	WT_STAT_CONN_LOG_COMPRESS_MEM			1192
 /*! log: total log buffer size */
-#define	WT_STAT_CONN_LOG_BUFFER_SIZE			1190
+#define	WT_STAT_CONN_LOG_BUFFER_SIZE			1193
 /*! log: total size of compressed records */
-#define	WT_STAT_CONN_LOG_COMPRESS_LEN			1191
+#define	WT_STAT_CONN_LOG_COMPRESS_LEN			1194
 /*! log: written slots coalesced */
-#define	WT_STAT_CONN_LOG_SLOT_COALESCED			1192
+#define	WT_STAT_CONN_LOG_SLOT_COALESCED			1195
 /*! log: yields waiting for previous log file close */
-#define	WT_STAT_CONN_LOG_CLOSE_YIELDS			1193
+#define	WT_STAT_CONN_LOG_CLOSE_YIELDS			1196
 /*! reconciliation: fast-path pages deleted */
-#define	WT_STAT_CONN_REC_PAGE_DELETE_FAST		1194
+#define	WT_STAT_CONN_REC_PAGE_DELETE_FAST		1197
 /*! reconciliation: page reconciliation calls */
-#define	WT_STAT_CONN_REC_PAGES				1195
+#define	WT_STAT_CONN_REC_PAGES				1198
 /*! reconciliation: page reconciliation calls for eviction */
-#define	WT_STAT_CONN_REC_PAGES_EVICTION			1196
+#define	WT_STAT_CONN_REC_PAGES_EVICTION			1199
 /*! reconciliation: pages deleted */
-#define	WT_STAT_CONN_REC_PAGE_DELETE			1197
+#define	WT_STAT_CONN_REC_PAGE_DELETE			1200
 /*! reconciliation: split bytes currently awaiting free */
-#define	WT_STAT_CONN_REC_SPLIT_STASHED_BYTES		1198
+#define	WT_STAT_CONN_REC_SPLIT_STASHED_BYTES		1201
 /*! reconciliation: split objects currently awaiting free */
-#define	WT_STAT_CONN_REC_SPLIT_STASHED_OBJECTS		1199
+#define	WT_STAT_CONN_REC_SPLIT_STASHED_OBJECTS		1202
 /*! session: open cursor count */
-#define	WT_STAT_CONN_SESSION_CURSOR_OPEN		1200
+#define	WT_STAT_CONN_SESSION_CURSOR_OPEN		1203
 /*! session: open session count */
-#define	WT_STAT_CONN_SESSION_OPEN			1201
+#define	WT_STAT_CONN_SESSION_OPEN			1204
 /*! session: table alter failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_ALTER_FAIL		1202
+#define	WT_STAT_CONN_SESSION_TABLE_ALTER_FAIL		1205
 /*! session: table alter successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SUCCESS	1203
+#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SUCCESS	1206
 /*! session: table alter unchanged and skipped */
-#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SKIP		1204
+#define	WT_STAT_CONN_SESSION_TABLE_ALTER_SKIP		1207
 /*! session: table compact failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_FAIL		1205
+#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_FAIL		1208
 /*! session: table compact successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_SUCCESS	1206
+#define	WT_STAT_CONN_SESSION_TABLE_COMPACT_SUCCESS	1209
 /*! session: table create failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_CREATE_FAIL		1207
+#define	WT_STAT_CONN_SESSION_TABLE_CREATE_FAIL		1210
 /*! session: table create successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_CREATE_SUCCESS	1208
+#define	WT_STAT_CONN_SESSION_TABLE_CREATE_SUCCESS	1211
 /*! session: table drop failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_DROP_FAIL		1209
+#define	WT_STAT_CONN_SESSION_TABLE_DROP_FAIL		1212
 /*! session: table drop successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_DROP_SUCCESS		1210
+#define	WT_STAT_CONN_SESSION_TABLE_DROP_SUCCESS		1213
 /*! session: table rebalance failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_FAIL	1211
+#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_FAIL	1214
 /*! session: table rebalance successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_SUCCESS	1212
+#define	WT_STAT_CONN_SESSION_TABLE_REBALANCE_SUCCESS	1215
 /*! session: table rename failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_RENAME_FAIL		1213
+#define	WT_STAT_CONN_SESSION_TABLE_RENAME_FAIL		1216
 /*! session: table rename successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_RENAME_SUCCESS	1214
+#define	WT_STAT_CONN_SESSION_TABLE_RENAME_SUCCESS	1217
 /*! session: table salvage failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_FAIL		1215
+#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_FAIL		1218
 /*! session: table salvage successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_SUCCESS	1216
+#define	WT_STAT_CONN_SESSION_TABLE_SALVAGE_SUCCESS	1219
 /*! session: table truncate failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_FAIL	1217
+#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_FAIL	1220
 /*! session: table truncate successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_SUCCESS	1218
+#define	WT_STAT_CONN_SESSION_TABLE_TRUNCATE_SUCCESS	1221
 /*! session: table verify failed calls */
-#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_FAIL		1219
+#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_FAIL		1222
 /*! session: table verify successful calls */
-#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_SUCCESS	1220
+#define	WT_STAT_CONN_SESSION_TABLE_VERIFY_SUCCESS	1223
 /*! thread-state: active filesystem fsync calls */
-#define	WT_STAT_CONN_THREAD_FSYNC_ACTIVE		1221
+#define	WT_STAT_CONN_THREAD_FSYNC_ACTIVE		1224
 /*! thread-state: active filesystem read calls */
-#define	WT_STAT_CONN_THREAD_READ_ACTIVE			1222
+#define	WT_STAT_CONN_THREAD_READ_ACTIVE			1225
 /*! thread-state: active filesystem write calls */
-#define	WT_STAT_CONN_THREAD_WRITE_ACTIVE		1223
+#define	WT_STAT_CONN_THREAD_WRITE_ACTIVE		1226
 /*! thread-yield: application thread time evicting (usecs) */
-#define	WT_STAT_CONN_APPLICATION_EVICT_TIME		1224
+#define	WT_STAT_CONN_APPLICATION_EVICT_TIME		1227
 /*! thread-yield: application thread time waiting for cache (usecs) */
-#define	WT_STAT_CONN_APPLICATION_CACHE_TIME		1225
+#define	WT_STAT_CONN_APPLICATION_CACHE_TIME		1228
 /*! thread-yield: page acquire busy blocked */
-#define	WT_STAT_CONN_PAGE_BUSY_BLOCKED			1226
+#define	WT_STAT_CONN_PAGE_BUSY_BLOCKED			1229
 /*! thread-yield: page acquire eviction blocked */
-#define	WT_STAT_CONN_PAGE_FORCIBLE_EVICT_BLOCKED	1227
+#define	WT_STAT_CONN_PAGE_FORCIBLE_EVICT_BLOCKED	1230
 /*! thread-yield: page acquire locked blocked */
-#define	WT_STAT_CONN_PAGE_LOCKED_BLOCKED		1228
+#define	WT_STAT_CONN_PAGE_LOCKED_BLOCKED		1231
 /*! thread-yield: page acquire read blocked */
-#define	WT_STAT_CONN_PAGE_READ_BLOCKED			1229
+#define	WT_STAT_CONN_PAGE_READ_BLOCKED			1232
 /*! thread-yield: page acquire time sleeping (usecs) */
-#define	WT_STAT_CONN_PAGE_SLEEP				1230
+#define	WT_STAT_CONN_PAGE_SLEEP				1233
 /*! transaction: number of named snapshots created */
-#define	WT_STAT_CONN_TXN_SNAPSHOTS_CREATED		1231
+#define	WT_STAT_CONN_TXN_SNAPSHOTS_CREATED		1234
 /*! transaction: number of named snapshots dropped */
-#define	WT_STAT_CONN_TXN_SNAPSHOTS_DROPPED		1232
+#define	WT_STAT_CONN_TXN_SNAPSHOTS_DROPPED		1235
 /*! transaction: transaction begins */
-#define	WT_STAT_CONN_TXN_BEGIN				1233
+#define	WT_STAT_CONN_TXN_BEGIN				1236
 /*! transaction: transaction checkpoint currently running */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_RUNNING		1234
+#define	WT_STAT_CONN_TXN_CHECKPOINT_RUNNING		1237
 /*! transaction: transaction checkpoint generation */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_GENERATION		1235
+#define	WT_STAT_CONN_TXN_CHECKPOINT_GENERATION		1238
 /*! transaction: transaction checkpoint max time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MAX		1236
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MAX		1239
 /*! transaction: transaction checkpoint min time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MIN		1237
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_MIN		1240
 /*! transaction: transaction checkpoint most recent time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_RECENT		1238
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_RECENT		1241
 /*! transaction: transaction checkpoint scrub dirty target */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TARGET	1239
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TARGET	1242
 /*! transaction: transaction checkpoint scrub time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TIME		1240
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SCRUB_TIME		1243
 /*! transaction: transaction checkpoint total time (msecs) */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_TOTAL		1241
+#define	WT_STAT_CONN_TXN_CHECKPOINT_TIME_TOTAL		1244
 /*! transaction: transaction checkpoints */
-#define	WT_STAT_CONN_TXN_CHECKPOINT			1242
+#define	WT_STAT_CONN_TXN_CHECKPOINT			1245
 /*!
  * transaction: transaction checkpoints skipped because database was
  * clean
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_SKIPPED		1243
+#define	WT_STAT_CONN_TXN_CHECKPOINT_SKIPPED		1246
 /*! transaction: transaction failures due to cache overflow */
-#define	WT_STAT_CONN_TXN_FAIL_CACHE			1244
+#define	WT_STAT_CONN_TXN_FAIL_CACHE			1247
 /*!
  * transaction: transaction fsync calls for checkpoint after allocating
  * the transaction ID
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST		1245
+#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST		1248
 /*!
  * transaction: transaction fsync duration for checkpoint after
  * allocating the transaction ID (usecs)
  */
-#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST_DURATION	1246
+#define	WT_STAT_CONN_TXN_CHECKPOINT_FSYNC_POST_DURATION	1249
 /*! transaction: transaction range of IDs currently pinned */
-#define	WT_STAT_CONN_TXN_PINNED_RANGE			1247
+#define	WT_STAT_CONN_TXN_PINNED_RANGE			1250
 /*! transaction: transaction range of IDs currently pinned by a checkpoint */
-#define	WT_STAT_CONN_TXN_PINNED_CHECKPOINT_RANGE	1248
+#define	WT_STAT_CONN_TXN_PINNED_CHECKPOINT_RANGE	1251
 /*!
  * transaction: transaction range of IDs currently pinned by named
  * snapshots
  */
-#define	WT_STAT_CONN_TXN_PINNED_SNAPSHOT_RANGE		1249
+#define	WT_STAT_CONN_TXN_PINNED_SNAPSHOT_RANGE		1252
 /*! transaction: transaction sync calls */
-#define	WT_STAT_CONN_TXN_SYNC				1250
+#define	WT_STAT_CONN_TXN_SYNC				1253
 /*! transaction: transactions committed */
-#define	WT_STAT_CONN_TXN_COMMIT				1251
+#define	WT_STAT_CONN_TXN_COMMIT				1254
 /*! transaction: transactions rolled back */
-#define	WT_STAT_CONN_TXN_ROLLBACK			1252
+#define	WT_STAT_CONN_TXN_ROLLBACK			1255
 
 /*!
  * @}
diff --git a/src/support/stat.c b/src/support/stat.c
index bc40244f5e6..061615c0931 100644
--- a/src/support/stat.c
+++ b/src/support/stat.c
@@ -690,7 +690,8 @@ static const char * const __stats_connection_desc[] = {
 	"cache: eviction worker thread evicting pages",
 	"cache: eviction worker thread removed",
 	"cache: eviction worker thread stable number",
-	"cache: failed eviction of pages that exceeded the in-memory maximum",
+	"cache: failed eviction of pages that exceeded the in-memory maximum count",
+	"cache: failed eviction of pages that exceeded the in-memory maximum time (usecs)",
 	"cache: files with active eviction walks",
 	"cache: files with new eviction walks started",
 	"cache: force re-tuning of eviction workers once in a while",
@@ -714,8 +715,10 @@ static const char * const __stats_connection_desc[] = {
 	"cache: page split during eviction deepened the tree",
 	"cache: page written requiring lookaside records",
 	"cache: pages currently held in the cache",
-	"cache: pages evicted because they exceeded the in-memory maximum",
-	"cache: pages evicted because they had chains of deleted items",
+	"cache: pages evicted because they exceeded the in-memory maximum count",
+	"cache: pages evicted because they exceeded the in-memory maximum time (usecs)",
+	"cache: pages evicted because they had chains of deleted items count",
+	"cache: pages evicted because they had chains of deleted items time (usecs)",
 	"cache: pages evicted by application threads",
 	"cache: pages queued for eviction",
 	"cache: pages queued for urgent eviction",
@@ -986,6 +989,7 @@ __wt_stat_connection_clear_single(WT_CONNECTION_STATS *stats)
 	stats->cache_eviction_worker_removed = 0;
 		/* not clearing cache_eviction_stable_state_workers */
 	stats->cache_eviction_force_fail = 0;
+	stats->cache_eviction_force_fail_time = 0;
 		/* not clearing cache_eviction_walks_active */
 	stats->cache_eviction_walks_started = 0;
 	stats->cache_eviction_force_retune = 0;
@@ -1010,7 +1014,9 @@ __wt_stat_connection_clear_single(WT_CONNECTION_STATS *stats)
 	stats->cache_write_lookaside = 0;
 		/* not clearing cache_pages_inuse */
 	stats->cache_eviction_force = 0;
+	stats->cache_eviction_force_time = 0;
 	stats->cache_eviction_force_delete = 0;
+	stats->cache_eviction_force_delete_time = 0;
 	stats->cache_eviction_app = 0;
 	stats->cache_eviction_pages_queued = 0;
 	stats->cache_eviction_pages_queued_urgent = 0;
@@ -1280,6 +1286,8 @@ __wt_stat_connection_aggregate(
 	    WT_STAT_READ(from, cache_eviction_stable_state_workers);
 	to->cache_eviction_force_fail +=
 	    WT_STAT_READ(from, cache_eviction_force_fail);
+	to->cache_eviction_force_fail_time +=
+	    WT_STAT_READ(from, cache_eviction_force_fail_time);
 	to->cache_eviction_walks_active +=
 	    WT_STAT_READ(from, cache_eviction_walks_active);
 	to->cache_eviction_walks_started +=
@@ -1319,8 +1327,12 @@ __wt_stat_connection_aggregate(
 	    WT_STAT_READ(from, cache_write_lookaside);
 	to->cache_pages_inuse += WT_STAT_READ(from, cache_pages_inuse);
 	to->cache_eviction_force += WT_STAT_READ(from, cache_eviction_force);
+	to->cache_eviction_force_time +=
+	    WT_STAT_READ(from, cache_eviction_force_time);
 	to->cache_eviction_force_delete +=
 	    WT_STAT_READ(from, cache_eviction_force_delete);
+	to->cache_eviction_force_delete_time +=
+	    WT_STAT_READ(from, cache_eviction_force_delete_time);
 	to->cache_eviction_app += WT_STAT_READ(from, cache_eviction_app);
 	to->cache_eviction_pages_queued +=
 	    WT_STAT_READ(from, cache_eviction_pages_queued);