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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2024-12-20 19:22:16 0x7ff0b3952700 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: 45 srv_active, 0 srv_shutdown, 344 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 227
OS WAIT ARRAY INFO: signal count 207
RW-shared spins 30, rounds 56, OS waits 26
RW-excl spins 32, rounds 710, OS waits 21
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.87 RW-shared, 22.19 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10616
Purge done for trx's n:o < 10610 undo n:o < 0 state: running but idle
History list length 34
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422148223588968, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422148223588096, 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
1220 OS file reads, 3887 OS file writes, 1486 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 1.29 writes/s, 1.00 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 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 1 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
529.98 hash searches/s, 196.20 non-hash searches/s
---
LOG
---
Log sequence number 52465702
Log buffer assigned up to 52465702
Log buffer completed up to 52465702
Log written up to 52465702
Log flushed up to 52465702
Added dirty pages up to 52465702
Pages flushed up to 52465702
Last checkpoint at 52465702
1935 log i/o's done, 0.46 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 675062
Buffer pool size 8192
Free buffers 6688
Database pages 1489
Old database pages 529
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1309, not young 1463
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1121, created 371, written 1687
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: 1489, unzip_LRU len: 0
I/O sum[12]: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=363, Main thread ID=140672738993920 , state=sleeping
Number of rows inserted 1340, updated 1649, deleted 517, read 559703
0.08 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1313.61 reads/s
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END OF INNODB MONITOR OUTPUT
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