控制台
存储引擎
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2025-08-30 10:46:48 0x7fa8d4164700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 50 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 13780 srv_active, 0 srv_shutdown, 5275617 srv_idle srv_master_thread log flush and writes: 5289091 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 78003 OS WAIT ARRAY INFO: signal count 46857 RW-shared spins 49328, rounds 1081114, OS waits 33541 RW-excl spins 50811, rounds 172052, OS waits 159 RW-sx spins 1109, rounds 8006, OS waits 91 Spin rounds per wait: 21.92 RW-shared, 3.39 RW-excl, 7.22 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 7339655 Purge done for trx's n:o < 7339655 undo n:o < 0 state: running History list length 6 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421838119235848, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421838119231632, 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 1659908 OS file reads, 617765 OS file writes, 250251 OS fsyncs 0.12 reads/s, 16384 avg bytes/read, 1.44 writes/s, 0.62 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 0, seg size 2, 2403 merges merged operations: insert 3084, delete mark 955, delete 455 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 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) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 4.04 hash searches/s, 3.14 non-hash searches/s --- LOG --- Log sequence number 1433086342 Log flushed up to 1433086342 Pages flushed up to 1433086342 Last checkpoint at 1433086333 0 pending log flushes, 0 pending chkp writes 155885 log i/o's done, 0.44 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 180560 Buffer pool size 1003 Free buffers 739 Database pages 256 Old database pages 0 Modified db pages 0 Percent of dirty pages(LRU & free pages): 0.000 Max dirty pages percent: 75.000 Pending reads 0 Pending writes: LRU 0, flush list 0, single page 0 Pages made young 27108, not young 588377 0.00 youngs/s, 0.00 non-youngs/s Pages read 1659831, created 10059, written 430541 0.12 reads/s, 0.00 creates/s, 0.92 writes/s Buffer pool hit rate 994 / 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[52]: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=2067, Main thread ID=140362869888768, state: sleeping Number of rows inserted 14322, updated 21776, deleted 16418, read 29502356 0.00 inserts/s, 0.26 updates/s, 0.00 deletes/s, 1.38 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 7519 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================