Supports transactions, row-level locking, and foreign keys
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===================================== 2024-09-20 02:48:19 0x7fb7c179c700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 30 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 36 srv_active, 0 srv_shutdown, 114 srv_idle srv_master_thread log flush and writes: 0 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 382 OS WAIT ARRAY INFO: signal count 362 RW-shared spins 64, rounds 119, OS waits 55 RW-excl spins 126, rounds 1110, OS waits 21 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 1.86 RW-shared, 8.81 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 10288 Purge done for trx's n:o < 10286 undo n:o < 0 state: running but idle History list length 22 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421902843783784, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421902843782912, 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 1431 OS file reads, 2864 OS file writes, 840 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 1.13 writes/s, 0.83 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 2 buffer(s) Hash table size 34679, node heap has 2 buffer(s) Hash table size 34679, node heap has 5 buffer(s) Hash table size 34679, node heap has 3 buffer(s) Hash table size 34679, node heap has 3 buffer(s) Hash table size 34679, node heap has 5 buffer(s) 508.68 hash searches/s, 242.59 non-hash searches/s --- LOG --- Log sequence number 52160125 Log buffer assigned up to 52160125 Log buffer completed up to 52160125 Log written up to 52160125 Log flushed up to 52160125 Added dirty pages up to 52160125 Pages flushed up to 52160125 Last checkpoint at 52160125 1355 log i/o's done, 0.37 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 137363456 Dictionary memory allocated 462754 Buffer pool size 8192 Free buffers 6696 Database pages 1473 Old database pages 524 Modified db pages 0 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 496, not young 1911 0.00 youngs/s, 0.00 non-youngs/s Pages read 1298, created 208, written 1369 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: 1473, unzip_LRU len: 0 I/O sum[102]: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=372, Main thread ID=140427358304000 , state=sleeping Number of rows inserted 587, updated 1882, deleted 1596, read 294509 1.57 inserts/s, 0.00 updates/s, 0.00 deletes/s, 698.64 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================