控制台
存储引擎
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2025-04-29 01:27:11 0x7f3e50541640 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 21 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 456237 srv_active, 0 srv_shutdown, 1419670 srv_idle srv_master_thread log flush and writes: 1875563 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 9098067 OS WAIT ARRAY INFO: signal count 4217237 RW-shared spins 112898, rounds 3373029, OS waits 112171 RW-excl spins 2743, rounds 80975, OS waits 2618 RW-sx spins 20, rounds 535, OS waits 16 Spin rounds per wait: 29.88 RW-shared, 29.52 RW-excl, 26.75 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 1906851 Purge done for trx's n:o < 1906851 undo n:o < 0 state: running History list length 2 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421380643668352, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421380643664136, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421380643659920, 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 497028 OS file reads, 5604185 OS file writes, 3299742 OS fsyncs 1.95 reads/s, 16384 avg bytes/read, 14.57 writes/s, 8.33 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 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 0 buffer(s) Hash table size 4441, node heap has 0 buffer(s) Hash table size 4441, node heap has 1 buffer(s) 24.71 hash searches/s, 55.43 non-hash searches/s --- LOG --- Log sequence number 1111237792 Log flushed up to 1111237772 Pages flushed up to 1111236418 Last checkpoint at 1111214605 0 pending log flushes, 0 pending chkp writes 1631118 log i/o's done, 3.95 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 75640 Buffer pool size 1003 Free buffers 743 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 496994, created 34994, written 3285941 1.95 reads/s, 0.00 creates/s, 8.67 writes/s Buffer pool hit rate 989 / 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[460]:cur[29], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=47352, Main thread ID=139904734459456, state: sleeping Number of rows inserted 2, updated 899144, deleted 0, read 8441667 0.00 inserts/s, 2.52 updates/s, 0.00 deletes/s, 19.76 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 4844 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================