Механізми зберігання
InnoDB
Supports transactions, row-level locking, and foreign keys
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Змінні
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Буферний пул
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Статус InnoDB
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2024-09-20 00:55:44 0x7ff69f0d1700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 12 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 40 srv_active, 0 srv_shutdown, 556 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 92
OS WAIT ARRAY INFO: signal count 92
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 6, rounds 180, OS waits 6
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10112
Purge done for trx's n:o < 10111 undo n:o < 0 state: running but idle
History list length 14
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422172767877736, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422172767876864, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
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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
1510 OS file reads, 1703 OS file writes, 630 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.33 writes/s, 0.25 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 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
1040.66 hash searches/s, 150.82 non-hash searches/s
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LOG
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Log sequence number 51100344
Log buffer assigned up to 51100344
Log buffer completed up to 51100344
Log written up to 51100344
Log flushed up to 51100344
Added dirty pages up to 51100344
Pages flushed up to 51099807
Last checkpoint at 51099807
488 log i/o's done, 0.36 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 137363456
Dictionary memory allocated 683467
Buffer pool size 8192
Free buffers 6627
Database pages 1544
Old database pages 589
Modified db pages 5
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1375, created 169, written 1070
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: 1544, unzip_LRU len: 0
I/O sum[0]: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=364, Main thread ID=140697278547712 , state=sleeping
Number of rows inserted 108, updated 511, deleted 0, read 1556909
0.08 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1108.82 reads/s
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END OF INNODB MONITOR OUTPUT
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