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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2026-02-16 05:37:56 0x7f34008d9700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 1 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 37 srv_active, 0 srv_shutdown, 391 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 87
OS WAIT ARRAY INFO: signal count 115
RW-shared spins 29, rounds 35, OS waits 6
RW-excl spins 7, rounds 104, OS waits 14
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.21 RW-shared, 14.86 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9946
Purge done for trx's n:o < 9945 undo n:o < 0 state: running but idle
History list length 29
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421337235795408, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421337235793664, 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
1268 OS file reads, 2000 OS file writes, 364 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 0 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 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
14844.16 hash searches/s, 12357.64 non-hash searches/s
---
LOG
---
Log sequence number 50994921
Log buffer assigned up to 50994921
Log buffer completed up to 50994921
Log written up to 50994921
Log flushed up to 50994921
Added dirty pages up to 50994921
Pages flushed up to 50994921
Last checkpoint at 50994921
246 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 821972
Buffer pool size 8192
Free buffers 6882
Database pages 1294
Old database pages 487
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 420, not young 697
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1149, created 1906, written 819
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: 1294, unzip_LRU len: 0
I/O sum[0]: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
1 read views open inside InnoDB
Process ID=377, Main thread ID=139861752207104 , state=sleeping
Number of rows inserted 360505, updated 402, deleted 0, read 8258181
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 18294.71 reads/s
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END OF INNODB MONITOR OUTPUT
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