控制台
存储引擎
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2024-12-26 07:00:04 0x7332a8a3d640 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 65 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 6428 srv_active, 0 srv_shutdown, 65878 srv_idle srv_master_thread log flush and writes: 72303 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 260404 OS WAIT ARRAY INFO: signal count 109360 RW-shared spins 12173, rounds 343147, OS waits 10980 RW-excl spins 837, rounds 6478, OS waits 167 RW-sx spins 23, rounds 322, OS waits 4 Spin rounds per wait: 28.19 RW-shared, 7.74 RW-excl, 14.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 2040496 Purge done for trx's n:o < 2040496 undo n:o < 0 state: running History list length 8 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 408136330518792, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 408136330514576, 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 782738 OS file reads, 115363 OS file writes, 64257 OS fsyncs 4.34 reads/s, 16384 avg bytes/read, 3.49 writes/s, 1.32 fsyncs/s ------------------------------------- INSERT BUFFER AND ADAPTIVE HASH INDEX ------------------------------------- Ibuf: size 1, free list len 12, seg size 14, 1610 merges merged operations: insert 1722, delete mark 1806, delete 1514 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 2 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 2 buffer(s) Hash table size 4441, node heap has 1 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 22.98 hash searches/s, 30.37 non-hash searches/s --- LOG --- Log sequence number 1395817794 Log flushed up to 1395817794 Pages flushed up to 1395817794 Last checkpoint at 1395816501 0 pending log flushes, 0 pending chkp writes 40168 log i/o's done, 0.88 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 880840 Buffer pool size 1003 Free buffers 747 Database pages 246 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 84650, not young 1088238 0.00 youngs/s, 0.00 non-youngs/s Pages read 782373, created 657, written 66128 4.34 reads/s, 0.00 creates/s, 2.48 writes/s Buffer pool hit rate 971 / 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: 246, unzip_LRU len: 0 I/O sum[426]:cur[3], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=310907, Main thread ID=126660798056000, state: sleeping Number of rows inserted 3297, updated 6993, deleted 3120, read 32370392 0.09 inserts/s, 0.34 updates/s, 0.09 deletes/s, 91.28 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 62783 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================