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Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[ Variáveis | Pool de buffer | Status do InnoDB ]
===================================== 2026-04-21 18:12:30 0x1430 INNODB MONITOR OUTPUT ===================================== Per second averages calculated from the last 28 seconds ----------------- BACKGROUND THREAD ----------------- srv_master_thread loops: 4595 srv_active, 0 srv_shutdown, 18869 srv_idle srv_master_thread log flush and writes: 23464 ---------- SEMAPHORES ---------- OS WAIT ARRAY INFO: reservation count 49581 OS WAIT ARRAY INFO: signal count 8868 RW-shared spins 1471, rounds 37943, OS waits 1208 RW-excl spins 227, rounds 4955, OS waits 141 RW-sx spins 4, rounds 120, OS waits 4 Spin rounds per wait: 25.79 RW-shared, 21.83 RW-excl, 30.00 RW-sx ------------ TRANSACTIONS ------------ Trx id counter 22915 Purge done for trx's n:o < 22915 undo n:o < 0 state: running History list length 13 LIST OF TRANSACTIONS FOR EACH SESSION: ---TRANSACTION 283585883808176, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283585883804008, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283585883799840, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283585883791504, not started 0 lock struct(s), heap size 1128, 0 row lock(s) ---TRANSACTION 283585883795672, 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 12650 OS file reads, 56491 OS file writes, 31261 OS fsyncs 0.29 reads/s, 16384 avg bytes/read, 0.25 writes/s, 0.25 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 1 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) 2.25 hash searches/s, 4.04 non-hash searches/s --- LOG --- Log sequence number 12127318 Log flushed up to 12127298 Pages flushed up to 12117959 Last checkpoint at 12117950 0 pending log flushes, 0 pending chkp writes 15890 log i/o's done, 0.25 log i/o's/second ---------------------- BUFFER POOL AND MEMORY ---------------------- Total large memory allocated 33554432 Dictionary memory allocated 90144 Buffer pool size 1003 Free buffers 735 Database pages 264 Old database pages 0 Modified db pages 17 Percent of dirty pages(LRU & free pages): 1.700 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 12600, created 397, written 34613 0.29 reads/s, 0.00 creates/s, 0.00 writes/s Buffer pool hit rate 974 / 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: 264, unzip_LRU len: 0 I/O sum[0]:cur[8], unzip sum[0]:cur[0] -------------- ROW OPERATIONS -------------- 0 queries inside InnoDB, 0 queries in queue 0 read views open inside InnoDB Process ID=10504, Main thread ID=11448, state: sleeping Number of rows inserted 49, updated 8540, deleted 0, read 214874 0.00 inserts/s, 0.25 updates/s, 0.00 deletes/s, 2.14 reads/s Number of system rows inserted 0, updated 0, deleted 0, read 10485 0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s ---------------------------- END OF INNODB MONITOR OUTPUT ============================