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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2025-02-22 17:38:20 0x7f47d00af700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 25 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 25 srv_active, 0 srv_shutdown, 427 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 80
OS WAIT ARRAY INFO: signal count 80
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 2, rounds 60, OS waits 2
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9922
Purge done for trx's n:o < 9921 undo n:o < 0 state: running but idle
History list length 29
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421421530786408, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421421530785536, 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
1441 OS file reads, 910 OS file writes, 337 OS fsyncs
0.68 reads/s, 15480 avg bytes/read, 0.88 writes/s, 0.60 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 7 buffer(s)
557.06 hash searches/s, 137.87 non-hash searches/s
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LOG
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Log sequence number 51003194
Log buffer assigned up to 51003194
Log buffer completed up to 51003194
Log written up to 51003194
Log flushed up to 51003194
Added dirty pages up to 51003194
Pages flushed up to 51003194
Last checkpoint at 51003194
243 log i/o's done, 0.20 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 642816
Buffer pool size 8192
Free buffers 6712
Database pages 1461
Old database pages 542
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 106, not young 1258
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1312, created 161, written 566
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: 1461, unzip_LRU len: 0
I/O sum[42]: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=139946046445312 , state=sleeping
Number of rows inserted 254, updated 396, deleted 0, read 1250114
1.80 inserts/s, 0.08 updates/s, 0.00 deletes/s, 1570.02 reads/s
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END OF INNODB MONITOR OUTPUT
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