Supports transactions, row-level locking, and foreign keys
[ Zmienne | Rezerwy buforowe | Status InnoDB ]
===================================== 2025-07-12 03:13:41 0x7f441c149700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 16 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 59 srv_active, 0 srv_shutdown, 713 srv_idle srv_master_thread log flush and writes: 0 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 147 OS WAIT ARRAY INFO: signal count 124 RW-shared spins 6, rounds 12, OS waits 6 RW-excl spins 5, rounds 150, OS waits 5 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 2.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 10115 Purge done for trx's n:o < 10115 undo n:o < 0 state: running but idle History list length 5 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421405663525480, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421405663524608, not started 0 lock struct(s), heap size 1136, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: waiting for completed aio requests (insert buffer thread) I/O thread 1 state: waiting for completed aio requests (log thread) I/O thread 2 state: waiting for completed aio requests (read thread) I/O thread 3 state: waiting for completed aio requests (read thread) I/O thread 4 state: waiting for completed aio requests (read thread) I/O thread 5 state: waiting for completed aio requests (read thread) I/O thread 6 state: waiting for completed aio requests (write thread) I/O thread 7 state: waiting for completed aio requests (write thread) I/O thread 8 state: waiting for completed aio requests (write thread) I/O thread 9 state: waiting for completed aio requests (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 1573 OS file reads, 2065 OS file writes, 692 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 34679, node heap has 1 buffer(s) Hash table size 34679, node heap has 2 buffer(s) Hash table size 34679, node heap has 8 buffer(s) Hash table size 34679, node heap has 1 buffer(s) Hash table size 34679, node heap has 25 buffer(s) Hash table size 34679, node heap has 2 buffer(s) Hash table size 34679, node heap has 4 buffer(s) Hash table size 34679, node heap has 32 buffer(s) 518.09 hash searches/s, 119.31 non-hash searches/s --- LOG --- Log sequence number 51200470 Log buffer assigned up to 51200470 Log buffer completed up to 51200470 Log written up to 51200470 Log flushed up to 51200470 Added dirty pages up to 51200470 Pages flushed up to 51200470 Last checkpoint at 51200470 592 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 137363456 Dictionary memory allocated 741008 Buffer pool size 8192 Free buffers 6503 Database pages 1614 Old database pages 576 Modified db pages 0 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 597, not young 167299 0.00 youngs/s, 0.00 non-youngs/s Pages read 1428, created 668, written 1090 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: 1614, unzip_LRU len: 0 I/O sum[1]: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=366, Main thread ID=139930179413760 , state=sleeping Number of rows inserted 74608, updated 619, deleted 0, read 879797 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 968.69 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================