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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2025-10-24 07:43:17 0x7f0f6009a700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 17 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 56 srv_active, 0 srv_shutdown, 692 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 127
OS WAIT ARRAY INFO: signal count 125
RW-shared spins 14, rounds 26, OS waits 12
RW-excl spins 7, rounds 188, OS waits 5
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.86 RW-shared, 26.86 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10055
Purge done for trx's n:o < 10052 undo n:o < 0 state: running but idle
History list length 35
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421179551885928, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421179551885056, 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
1327 OS file reads, 2244 OS file writes, 819 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 1 buffer(s)
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 2 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
274.10 hash searches/s, 91.82 non-hash searches/s
---
LOG
---
Log sequence number 51333546
Log buffer assigned up to 51333546
Log buffer completed up to 51333546
Log written up to 51333546
Log flushed up to 51333546
Added dirty pages up to 51333546
Pages flushed up to 51333546
Last checkpoint at 51333546
630 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 716787
Buffer pool size 8192
Free buffers 6748
Database pages 1426
Old database pages 531
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 584, not young 1462
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1216, created 310, written 1356
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: 1426, unzip_LRU len: 0
I/O sum[9]: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=139704067360512 , state=sleeping
Number of rows inserted 16946, updated 705, deleted 106, read 641629
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 676.67 reads/s
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END OF INNODB MONITOR OUTPUT
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