Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2026-09-25 21:24:35 0x3b80 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 17 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 10862 srv_active, 0 srv_shutdown, 37820 srv_idle srv_master_thread log flush and writes: 48682 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 336893 OS WAIT ARRAY INFO: signal count 308287 RW-shared spins 773971, rounds 13896242, OS waits 322843 RW-excl spins 60693, rounds 744107, OS waits 4525 RW-sx spins 4, rounds 101, OS waits 3 Spin rounds per wait: 17.95 RW-shared, 12.26 RW-excl, 25.25 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 7776042 Purge done for trx's n:o < 7776042 undo n:o < 0 state: running but idle History list length 6 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 284268549128480, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 284268549124312, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 284268549120144, 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 3028082 OS file reads, 155087 OS file writes, 82630 OS fsyncs 99.05 reads/s, 16384 avg bytes/read, 11.41 writes/s, 6.47 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 15, seg size 17, 1849 merges merged operations: insert 1971, delete mark 12, delete 2 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 1 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 1 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 1 buffer(s) 15.29 hash searches/s, 59.11 non-hash searches/s --- LOG --- Log sequence number 4695303079 Log flushed up to 4695303059 Pages flushed up to 4695266427 Last checkpoint at 4695264101 0 pending log flushes, 0 pending chkp writes 42572 log i/o's done, 4.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 618488 Buffer pool size 1003 Free buffers 734 Database pages 261 Old database pages 0 Modified db pages 72 Percent of dirty pages(LRU & free pages): 7.229 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 295050, not young 85064412 2.41 youngs/s, 1362.16 non-youngs/s Pages read 3027833, created 1271, written 98234 99.05 reads/s, 0.29 creates/s, 6.23 writes/s Buffer pool hit rate 950 / 1000, young-making rate 1 / 1000 not 680 / 1000 Pages read ahead 32.00/s, evicted without access 4.00/s, Random read ahead 0.00/s LRU len: 261, unzip_LRU len: 0 I/O sum[4866]:cur[14], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=4336, Main thread ID=6540, state: sleeping Number of rows inserted 901, updated 26147, deleted 308, read 404044864 0.00 inserts/s, 2.59 updates/s, 0.00 deletes/s, 8010.18 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 98179 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================