控制台
存储引擎
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2025-11-08 03:48:04 0x7f66ac2ed700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 24 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 6612 srv_active, 0 srv_shutdown, 1396064 srv_idle srv_master_thread log flush and writes: 1402331 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 12942 OS WAIT ARRAY INFO: signal count 12934 RW-shared spins 12815, rounds 384270, OS waits 12806 RW-excl spins 37, rounds 1075, OS waits 35 RW-sx spins 4, rounds 120, OS waits 4 Spin rounds per wait: 29.99 RW-shared, 29.05 RW-excl, 30.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 119242 Purge done for trx's n:o < 119242 undo n:o < 0 state: running History list length 5 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421553946874240, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421553946870024, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421553946865808, not started flushing log mysql tables in use 1, locked 1 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: 1; buffer pool: 0 17186 OS file reads, 81023 OS file writes, 59638 OS fsyncs 1.33 reads/s, 16384 avg bytes/read, 3.58 writes/s, 1.21 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 1 buffer(s) Hash table size 4441, node heap has 0 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 0 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 3.79 hash searches/s, 9.37 non-hash searches/s --- LOG --- Log sequence number 84626110 Log flushed up to 84624882 Pages flushed up to 84624882 Last checkpoint at 84602938 1 pending log flushes, 0 pending chkp writes 39162 log i/o's done, 0.96 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 87840 Buffer pool size 1002 Free buffers 741 Database pages 257 Old database pages 0 Modified db pages 3 Percent of dirty pages(LRU & free pages): 0.300 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 17146, created 465, written 34841 1.33 reads/s, 0.08 creates/s, 2.54 writes/s Buffer pool hit rate 964 / 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: 257, unzip_LRU len: 0 I/O sum[152]:cur[36], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=12227, Main thread ID=140077707540224, state: sleeping Number of rows inserted 324, updated 6645, deleted 0, read 1556160 0.00 inserts/s, 0.71 updates/s, 0.00 deletes/s, 3.54 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 8234 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================