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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2026-02-06 04:14:46 0x7fe6e416a700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 46 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 49 srv_active, 0 srv_shutdown, 789 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 97
OS WAIT ARRAY INFO: signal count 101
RW-shared spins 10, rounds 14, OS waits 4
RW-excl spins 5, rounds 150, OS waits 5
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.40 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10072
Purge done for trx's n:o < 10072 undo n:o < 0 state: running but idle
History list length 14
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422104778533480, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422104778532608, 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
1372 OS file reads, 1824 OS file writes, 692 OS fsyncs
0.07 reads/s, 16384 avg bytes/read, 1.09 writes/s, 0.54 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 1 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 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
761.01 hash searches/s, 447.51 non-hash searches/s
---
LOG
---
Log sequence number 51202114
Log buffer assigned up to 51202114
Log buffer completed up to 51202114
Log written up to 51202114
Log flushed up to 51202114
Added dirty pages up to 51202114
Pages flushed up to 51202114
Last checkpoint at 51202114
556 log i/o's done, 0.47 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 893702
Buffer pool size 8192
Free buffers 6769
Database pages 1403
Old database pages 497
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 275, not young 69
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1212, created 282, written 1052
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: 1403, unzip_LRU len: 0
I/O sum[28]: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=368, Main thread ID=140629294380800 , state=sleeping
Number of rows inserted 16724, updated 626, deleted 0, read 2437096
0.11 inserts/s, 0.13 updates/s, 0.00 deletes/s, 1133.02 reads/s
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END OF INNODB MONITOR OUTPUT
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