控制台
存储引擎
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2025-03-15 08:29:00 0x9e0 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 23 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 172291 srv_active, 0 srv_shutdown, 2461791 srv_idle srv_master_thread log flush and writes: 2634082 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 11491528 OS WAIT ARRAY INFO: signal count 255447 RW-shared spins 342721, rounds 10281511, OS waits 188828 RW-excl spins 12193, rounds 362135, OS waits 9413 RW-sx spins 17, rounds 480, OS waits 8 Spin rounds per wait: 30.00 RW-shared, 29.70 RW-excl, 28.24 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 384967 Purge done for trx's n:o < 384967 undo n:o < 0 state: running but idle History list length 4 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 282850182410528, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282850182406360, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 282850182402192, not started 0 lock struct(s), heap size 1128, 0 row lock(s) -------- FILE I/O -------- I/O thread 0 state: native aio handle (insert buffer thread) I/O thread 1 state: native aio handle (log thread) I/O thread 2 state: native aio handle (read thread) I/O thread 3 state: native aio handle (read thread) I/O thread 4 state: native aio handle (read thread) I/O thread 5 state: native aio handle (read thread) I/O thread 6 state: native aio handle (write thread) I/O thread 7 state: native aio handle (write thread) I/O thread 8 state: native aio handle (write thread) I/O thread 9 state: native aio handle (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 128692 OS file reads, 2162812 OS file writes, 1642241 OS fsyncs 0.04 reads/s, 16384 avg bytes/read, 0.43 writes/s, 0.39 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 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 1 buffer(s) 1.61 hash searches/s, 3.91 non-hash searches/s --- LOG --- Log sequence number 255634819 Log flushed up to 255634819 Pages flushed up to 255634819 Last checkpoint at 255634810 0 pending log flushes, 0 pending chkp writes 1041343 log i/o's done, 0.26 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 95152 Buffer pool size 1003 Free buffers 743 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 0, not young 0 0.00 youngs/s, 0.00 non-youngs/s Pages read 128650, created 8433, written 906382 0.04 reads/s, 0.00 creates/s, 0.13 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[4]: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=3900, Main thread ID=1092, state: sleeping Number of rows inserted 190, updated 171443, deleted 134, read 3547738 0.00 inserts/s, 0.04 updates/s, 0.00 deletes/s, 1.52 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 3768 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================