Console
Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variables | Buffer Pool | InnoDB Status ]
===================================== 2025-09-04 16:53:31 0x76f1f9cd3640 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 19 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 16361 srv_active, 0 srv_shutdown, 6545211 srv_idle srv_master_thread log flush and writes: 6561442 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 26381 OS WAIT ARRAY INFO: signal count 26115 RW-shared spins 24554, rounds 722613, OS waits 24014 RW-excl spins 2188, rounds 17389, OS waits 465 RW-sx spins 385, rounds 2101, OS waits 6 Spin rounds per wait: 29.43 RW-shared, 7.95 RW-excl, 5.46 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 113965 Purge done for trx's n:o < 113965 undo n:o < 0 state: running but idle History list length 7 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 412256382742792, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 412256382738576, not started 0 lock struct(s), heap size 1128, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: waiting for i/o request (insert buffer thread) I/O thread 1 state: waiting for i/o request (log thread) I/O thread 2 state: waiting for i/o request (read thread) I/O thread 3 state: waiting for i/o request (read thread) I/O thread 4 state: waiting for i/o request (read thread) I/O thread 5 state: waiting for i/o request (read thread) I/O thread 6 state: waiting for i/o request (write thread) I/O thread 7 state: waiting for i/o request (write thread) I/O thread 8 state: waiting for i/o request (write thread) I/O thread 9 state: waiting for i/o request (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 60386 OS file reads, 226398 OS file writes, 146333 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.05 writes/s, 0.05 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 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) 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) 0.68 hash searches/s, 1.00 non-hash searches/s --- LOG --- Log sequence number 98981980 Log flushed up to 98981960 Pages flushed up to 98980688 Last checkpoint at 98980679 0 pending log flushes, 0 pending chkp writes 91675 log i/o's done, 0.05 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 192760 Buffer pool size 1003 Free buffers 741 Database pages 256 Old database pages 0 Modified db pages 3 Percent of dirty pages(LRU & free pages): 0.301 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 0, not young 0 0.00 youngs/s, 0.00 non-youngs/s Pages read 60313, created 1352, written 114893 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: 256, unzip_LRU len: 0 I/O sum[0]:cur[0], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=18539, Main thread ID=130781125002816, state: sleeping Number of rows inserted 4256, updated 25466, deleted 1889, read 15456523 0.00 inserts/s, 0.05 updates/s, 0.00 deletes/s, 0.79 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 55479 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================