Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variáveis
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Pool de buffer
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Estado do InnoDB
]
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2026-03-27 16:26:51 0x7fcb9d39b700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 53 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 37 srv_active, 0 srv_shutdown, 626 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 101
OS WAIT ARRAY INFO: signal count 102
RW-shared spins 7, rounds 13, OS waits 6
RW-excl spins 16, rounds 250, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.86 RW-shared, 15.62 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9975
Purge done for trx's n:o < 9974 undo n:o < 0 state: running but idle
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421988531911272, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421988531910400, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (write thread)
I/O thread 7 state: waiting for completed aio requests (write thread)
I/O thread 8 state: waiting for completed aio requests (write thread)
I/O thread 9 state: waiting for completed aio requests (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
1330 OS file reads, 1548 OS file writes, 542 OS fsyncs
0.08 reads/s, 12544 avg bytes/read, 2.34 writes/s, 0.55 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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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 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
2225.24 hash searches/s, 1651.23 non-hash searches/s
---
LOG
---
Log sequence number 51132208
Log buffer assigned up to 51132208
Log buffer completed up to 51132208
Log written up to 51132208
Log flushed up to 51132208
Added dirty pages up to 51132208
Pages flushed up to 51132208
Last checkpoint at 51132208
409 log i/o's done, 0.31 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 644007
Buffer pool size 8192
Free buffers 6799
Database pages 1375
Old database pages 487
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 347, not young 461
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1199, created 179, written 997
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: 1375, unzip_LRU len: 0
I/O sum[100]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=365, Main thread ID=140513048958720 , state=sleeping
Number of rows inserted 165, updated 504, deleted 74, read 1794957
0.04 inserts/s, 0.09 updates/s, 0.00 deletes/s, 2792.21 reads/s
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END OF INNODB MONITOR OUTPUT
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