Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2025-12-07 14:49:37 0x1d9c INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 4 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 76265 srv_active, 0 srv_shutdown, 32537 srv_idle srv_master_thread log flush and writes: 108802 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 89236 OS WAIT ARRAY INFO: signal count 85290 RW-shared spins 41623, rounds 1124902, OS waits 37133 RW-excl spins 784, rounds 14528, OS waits 430 RW-sx spins 35, rounds 997, OS waits 27 Spin rounds per wait: 27.03 RW-shared, 18.53 RW-excl, 28.49 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 27702161 Purge done for trx's n:o < 27702161 undo n:o < 0 state: running but idle History list length 4 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 283686629302776, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283686629298608, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283686629294440, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283686629290272, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283686629286104, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283686629281936, not started 0 lock struct(s), heap size 1128, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: native aio handle (insert buffer thread) I/O thread 1 state: native aio handle (log thread) I/O thread 2 state: native aio handle (read thread) I/O thread 3 state: native aio handle (read thread) I/O thread 4 state: native aio handle (read thread) I/O thread 5 state: native aio handle (read thread) I/O thread 6 state: native aio handle (write thread) I/O thread 7 state: native aio handle (write thread) I/O thread 8 state: native aio handle (write thread) I/O thread 9 state: native aio handle (write thread) Pending normal aio reads: [0, 0, 0, 0] , aio writes: [0, 0, 0, 0] , ibuf aio reads:, log i/o's:, sync i/o's: Pending flushes (fsync) log: 0; buffer pool: 0 373469 OS file reads, 1197595 OS file writes, 664463 OS fsyncs 4.00 reads/s, 16384 avg bytes/read, 12.25 writes/s, 7.25 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 0, seg size 2, 0 merges merged operations: insert 0, delete mark 0, delete 0 discarded operations: insert 0, delete mark 0, delete 0 Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 42.74 hash searches/s, 76.48 non-hash searches/s --- LOG --- Log sequence number 17747469270 Log flushed up to 17747469250 Pages flushed up to 17747463058 Last checkpoint at 17747449418 0 pending log flushes, 0 pending chkp writes 361646 log i/o's done, 4.50 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 247896 Buffer pool size 1003 Free buffers 739 Database pages 259 Old database pages 0 Modified db pages 20 Percent of dirty pages(LRU & free pages): 2.002 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 108, not young 8514 0.00 youngs/s, 0.00 non-youngs/s Pages read 373353, created 9804, written 710977 0.00 reads/s, 0.00 creates/s, 0.00 writes/s Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 0 / 1000 Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s LRU len: 259, unzip_LRU len: 0 I/O sum[611]:cur[2], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=5156, Main thread ID=7396, state: sleeping Number of rows inserted 356, updated 199635, deleted 16, read 16235294 0.00 inserts/s, 3.50 updates/s, 0.00 deletes/s, 36.49 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 471840 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================