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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2026-02-13 05:12:04 0x7fd114092700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 6 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 49 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 184
OS WAIT ARRAY INFO: signal count 193
RW-shared spins 8, rounds 9, OS waits 1
RW-excl spins 11, rounds 132, OS waits 8
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.12 RW-shared, 12.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10161
Purge done for trx's n:o < 10160 undo n:o < 0 state: running but idle
History list length 20
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422011077913192, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422011077912320, 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
1568 OS file reads, 2453 OS file writes, 600 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
-------------------------------------
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 8 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
Hash table size 34679, node heap has 32 buffer(s)
6950.17 hash searches/s, 5819.03 non-hash searches/s
---
LOG
---
Log sequence number 51042373
Log buffer assigned up to 51042373
Log buffer completed up to 51042373
Log written up to 51042373
Log flushed up to 51042373
Added dirty pages up to 51042373
Pages flushed up to 51042373
Last checkpoint at 51042373
483 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 723800
Buffer pool size 8192
Free buffers 6558
Database pages 1556
Old database pages 582
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 536, not young 1055
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1409, created 1388, written 1253
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: 1556, 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
0 read views open inside InnoDB
Process ID=366, Main thread ID=140535593621248 , state=sleeping
Number of rows inserted 262430, updated 476, deleted 0, read 6766049
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 8357.11 reads/s
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END OF INNODB MONITOR OUTPUT
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