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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2025-12-24 05:46:11 0x7f2c6604f700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 24 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 6 srv_active, 0 srv_shutdown, 18 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 9
OS WAIT ARRAY INFO: signal count 9
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9812
Purge done for trx's n:o < 9807 undo n:o < 0 state: running but idle
History list length 73
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421304992434792, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421304992433920, 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
1421 OS file reads, 333 OS file writes, 97 OS fsyncs
56.84 reads/s, 19636 avg bytes/read, 13.32 writes/s, 3.88 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 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 2 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
1030.62 hash searches/s, 755.97 non-hash searches/s
---
LOG
---
Log sequence number 50958945
Log buffer assigned up to 50958945
Log buffer completed up to 50958945
Log written up to 50958945
Log flushed up to 50958945
Added dirty pages up to 50958945
Pages flushed up to 50958945
Last checkpoint at 50958945
73 log i/o's done, 2.92 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 611352
Buffer pool size 8192
Free buffers 6751
Database pages 1427
Old database pages 546
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1284, created 143, written 219
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: 1427, 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=365, Main thread ID=139829507725056 , state=sleeping
Number of rows inserted 2, updated 340, deleted 0, read 45530
0.08 inserts/s, 14.17 updates/s, 0.00 deletes/s, 1897.00 reads/s
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END OF INNODB MONITOR OUTPUT
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