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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2026-02-23 05:26:01 0x7fbe98065700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 3 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 60 srv_active, 0 srv_shutdown, 553 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 180
OS WAIT ARRAY INFO: signal count 179
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 5, rounds 150, OS waits 5
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10585
Purge done for trx's n:o < 10581 undo n:o < 0 state: running but idle
History list length 48
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421931711409616, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421931711408744, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421931711407872, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
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
1622 OS file reads, 2738 OS file writes, 829 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 4 buffer(s)
Hash table size 34679, node heap has 32 buffer(s)
385.54 hash searches/s, 103.97 non-hash searches/s
---
LOG
---
Log sequence number 51126560
Log buffer assigned up to 51126560
Log buffer completed up to 51126560
Log written up to 51126560
Log flushed up to 51126560
Added dirty pages up to 51126560
Pages flushed up to 51126560
Last checkpoint at 51126560
810 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 732146
Buffer pool size 8192
Free buffers 6508
Database pages 1607
Old database pages 573
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 636, not young 320029
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1455, created 197, written 1752
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: 1607, 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=368, Main thread ID=140456223508224 , state=sleeping
Number of rows inserted 1011, updated 690, deleted 0, read 1239676
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 687.10 reads/s
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END OF INNODB MONITOR OUTPUT
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