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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2026-03-31 05:39:41 0x7f3ab008d700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 44 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 54 srv_active, 0 srv_shutdown, 478 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 159
OS WAIT ARRAY INFO: signal count 159
RW-shared spins 11, rounds 21, OS waits 10
RW-excl spins 12, rounds 309, OS waits 10
RW-sx spins 1, rounds 30, OS waits 1
Spin rounds per wait: 1.91 RW-shared, 25.75 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 10164
Purge done for trx's n:o < 10160 undo n:o < 0 state: running but idle
History list length 47
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421365538699880, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421365538699008, 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
1391 OS file reads, 2474 OS file writes, 906 OS fsyncs
0.02 reads/s, 16384 avg bytes/read, 1.07 writes/s, 0.52 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 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 4 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
2899.30 hash searches/s, 1842.37 non-hash searches/s
---
LOG
---
Log sequence number 51323436
Log buffer assigned up to 51323436
Log buffer completed up to 51323436
Log written up to 51323436
Log flushed up to 51323436
Added dirty pages up to 51323436
Pages flushed up to 51323436
Last checkpoint at 51323436
742 log i/o's done, 0.41 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 735861
Buffer pool size 8192
Free buffers 6710
Database pages 1464
Old database pages 520
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 538, not young 184928
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1262, created 211, written 1522
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: 1464, unzip_LRU len: 0
I/O sum[15]:cur[17], 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=375, Main thread ID=139890051200768 , state=sleeping
Number of rows inserted 439, updated 652, deleted 107, read 2111118
0.00 inserts/s, 0.20 updates/s, 0.00 deletes/s, 3252.02 reads/s
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END OF INNODB MONITOR OUTPUT
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