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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2024-09-19 20:49:14 0x7f066405e700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 49 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 34 srv_active, 0 srv_shutdown, 172 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 97
OS WAIT ARRAY INFO: signal count 97
RW-shared spins 2, rounds 3, 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: 1.50 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10053
Purge done for trx's n:o < 10053 undo n:o < 0 state: running but idle
History list length 10
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421140555192936, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421140555192064, 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
1363 OS file reads, 1351 OS file writes, 500 OS fsyncs
0.18 reads/s, 14677 avg bytes/read, 8.59 writes/s, 2.61 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 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 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 2 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
1921.51 hash searches/s, 739.62 non-hash searches/s
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LOG
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Log sequence number 51045085
Log buffer assigned up to 51045085
Log buffer completed up to 51045085
Log written up to 51045085
Log flushed up to 51045085
Added dirty pages up to 51045085
Pages flushed up to 51045085
Last checkpoint at 51045085
382 log i/o's done, 2.41 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 704495
Buffer pool size 8192
Free buffers 6768
Database pages 1408
Old database pages 499
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 405, not young 2039
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1252, created 165, written 844
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 5 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1408, unzip_LRU len: 0
I/O sum[336]: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=378, Main thread ID=139665068717824 , state=sleeping
Number of rows inserted 204, updated 446, deleted 0, read 557400
1.61 inserts/s, 1.14 updates/s, 0.00 deletes/s, 2672.17 reads/s
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END OF INNODB MONITOR OUTPUT
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