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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2024-09-19 23:40:00 0x7f5bf805f700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 11 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 50 srv_active, 0 srv_shutdown, 502 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 135
OS WAIT ARRAY INFO: signal count 122
RW-shared spins 3, rounds 4, OS waits 1
RW-excl spins 7, rounds 210, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.33 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10126
Purge done for trx's n:o < 10126 undo n:o < 0 state: running but idle
History list length 19
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421508151949928, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421508151949056, 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
1521 OS file reads, 1830 OS file writes, 699 OS fsyncs
0.09 reads/s, 16384 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 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
1520.95 hash searches/s, 313.61 non-hash searches/s
---
LOG
---
Log sequence number 51101527
Log buffer assigned up to 51101527
Log buffer completed up to 51101527
Log written up to 51101527
Log flushed up to 51101527
Added dirty pages up to 51101527
Pages flushed up to 51101527
Last checkpoint at 51101527
524 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 664182
Buffer pool size 8192
Free buffers 6609
Database pages 1564
Old database pages 557
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 408, not young 197
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1394, created 179, written 1136
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: 1564, unzip_LRU len: 0
I/O sum[25]: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=369, Main thread ID=140032665925376 , state=sleeping
Number of rows inserted 245, updated 504, deleted 0, read 1155313
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 2336.88 reads/s
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END OF INNODB MONITOR OUTPUT
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