Supports transactions, row-level locking, and foreign keys
===================================== 2024-09-28 23:27:54 0x7f61300e2700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 55 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 51 srv_active, 0 srv_shutdown, 674 srv_idle srv_master_thread log flush and writes: 0 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 122 OS WAIT ARRAY INFO: signal count 123 RW-shared spins 1, rounds 1, OS waits 0 RW-excl spins 6, rounds 180, OS waits 6 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 10067 Purge done for trx's n:o < 10060 undo n:o < 0 state: running but idle History list length 14 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421530926185064, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421530926185936, not started 0 lock struct(s), heap size 1136, 0 row lock(s) ---TRANSACTION 421530926184192, 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 1540 OS file reads, 1443 OS file writes, 524 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.11 writes/s, 0.04 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 2 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 31 buffer(s) 2847.33 hash searches/s, 935.49 non-hash searches/s --- LOG --- Log sequence number 51024789 Log buffer assigned up to 51024789 Log buffer completed up to 51024789 Log written up to 51024789 Log flushed up to 51024789 Added dirty pages up to 51024789 Pages flushed up to 51024789 Last checkpoint at 51024789 397 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 137363456 Dictionary memory allocated 670154 Buffer pool size 8192 Free buffers 6557 Database pages 1560 Old database pages 556 Modified db pages 0 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 578, not young 196661 0.00 youngs/s, 0.00 non-youngs/s Pages read 1413, created 286, written 853 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: 1560, unzip_LRU len: 0 I/O sum[2]: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=376, Main thread ID=140055440979712 , state=sleeping Number of rows inserted 33595, updated 435, deleted 0, read 2807925 1.64 inserts/s, 0.00 updates/s, 0.00 deletes/s, 3687.28 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================