控制台
存储引擎
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
===================================== 2024-09-19 01:50:40 0x7f83c01a9700 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 64 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 21064 srv_active, 0 srv_shutdown, 10305308 srv_idle srv_master_thread log flush and writes: 10324668 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 39994 OS WAIT ARRAY INFO: signal count 38717 RW-shared spins 36946, rounds 1108438, OS waits 36947 RW-excl spins 15, rounds 455, OS waits 15 RW-sx spins 0, rounds 0, OS waits 0 Spin rounds per wait: 30.00 RW-shared, 30.33 RW-excl, 0.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 161882 Purge done for trx's n:o < 161879 undo n:o < 0 state: running but idle History list length 0 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 421678864830728, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 421678864826512, 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 13075 OS file reads, 221776 OS file writes, 169830 OS fsyncs 0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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) 0.86 hash searches/s, 1.48 non-hash searches/s --- LOG --- Log sequence number 26269585 Log flushed up to 26269585 Pages flushed up to 26269585 Last checkpoint at 26269576 0 pending log flushes, 0 pending chkp writes 111511 log i/o's done, 0.00 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 80520 Buffer pool size 1002 Free buffers 741 Database pages 258 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 13038, created 768, written 89737 0.00 reads/s, 0.00 creates/s, 0.00 writes/s Buffer pool hit rate 1000 / 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: 258, unzip_LRU len: 0 I/O sum[0]: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=68793, Main thread ID=140202890749696, state: sleeping Number of rows inserted 6, updated 17410, deleted 0, read 624439 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.86 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 16551 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================