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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2025-07-03 06:26:28 0x7fc60d4ac700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 30 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 17 srv_active, 0 srv_shutdown, 623 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 43
OS WAIT ARRAY INFO: signal count 36
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 7, rounds 101, OS waits 3
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 14.43 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 9846
Purge done for trx's n:o < 9845 undo n:o < 0 state: running but idle
History list length 84
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421964158074320, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421964158073448, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421964158072576, 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
1241 OS file reads, 652 OS file writes, 256 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.23 writes/s, 0.23 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 1 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 6 buffer(s)
724.31 hash searches/s, 346.52 non-hash searches/s
---
LOG
---
Log sequence number 51016534
Log buffer assigned up to 51016534
Log buffer completed up to 51016534
Log written up to 51016534
Log flushed up to 51016534
Added dirty pages up to 51016534
Pages flushed up to 51016534
Last checkpoint at 51016534
188 log i/o's done, 0.07 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 616384
Buffer pool size 8192
Free buffers 6894
Database pages 1282
Old database pages 493
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1128, created 154, written 384
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: 1282, 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=371, Main thread ID=140488745039616 , state=sleeping
Number of rows inserted 55, updated 380, deleted 23, read 466619
0.03 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1093.10 reads/s
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END OF INNODB MONITOR OUTPUT
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