Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variáveis
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Pool de buffer
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Status do InnoDB
]
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2025-07-14 22:48:21 0x7fef9b07f700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 32 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 5 srv_active, 0 srv_shutdown, 148 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 19
OS WAIT ARRAY INFO: signal count 19
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
------------
Trx id counter 9792
Purge done for trx's n:o < 9791 undo n:o < 0 state: running but idle
History list length 68
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422143385096504, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422143385095632, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422143385094760, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422143385093888, 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: 18446744073709551615
1221 OS file reads, 325 OS file writes, 93 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.78 writes/s, 0.41 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 0 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 5 buffer(s)
347.65 hash searches/s, 68.94 non-hash searches/s
---
LOG
---
Log sequence number 50957795
Log buffer assigned up to 50957795
Log buffer completed up to 50957795
Log written up to 50957795
Log flushed up to 50957795
Added dirty pages up to 50957795
Pages flushed up to 50957795
Last checkpoint at 50957795
67 log i/o's done, 0.31 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 559482
Buffer pool size 8192
Free buffers 6931
Database pages 1247
Old database pages 442
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 82, not young 2749
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1104, created 146, written 213
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: 1247, unzip_LRU len: 0
I/O sum[14]: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=140667901650688 , state=sleeping
Number of rows inserted 47, updated 335, deleted 0, read 98114
0.00 inserts/s, 0.16 updates/s, 0.00 deletes/s, 586.67 reads/s
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END OF INNODB MONITOR OUTPUT
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