Механізми зберігання

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Змінні | Буферний пул | Статус InnoDB ]

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2025-10-15 14:47:21 0x7ff9dcff9700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 32 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 13 srv_active, 0 srv_shutdown, 80 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 85
OS WAIT ARRAY INFO: signal count 83
RW-shared spins 12, rounds 23, OS waits 11
RW-excl spins 25, rounds 264, OS waits 6
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.92 RW-shared, 10.56 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9956
Purge done for trx's n:o < 9956 undo n:o < 0 state: running but idle
History list length 23
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422186757499496, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422186757498624, 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
1382 OS file reads, 1150 OS file writes, 270 OS fsyncs
2.66 reads/s, 15841 avg bytes/read, 5.69 writes/s, 2.34 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 3 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 5 buffer(s)
235.12 hash searches/s, 88.50 non-hash searches/s
---
LOG
---
Log sequence number          51130088
Log buffer assigned up to    51130088
Log buffer completed up to   51130088
Log written up to            51130088
Log flushed up to            51130088
Added dirty pages up to      51130088
Pages flushed up to          51130088
Last checkpoint at           51130088
305 log i/o's done, 1.88 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 581152
Buffer pool size   8192
Free buffers       6761
Database pages     1414
Old database pages 541
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 3, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1267, created 147, written 779
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 998 / 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: 1414, 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=367, Main thread ID=140711270758144 , state=sleeping
Number of rows inserted 5, updated 440, deleted 207, read 68334
0.03 inserts/s, 0.78 updates/s, 1.34 deletes/s, 563.14 reads/s
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END OF INNODB MONITOR OUTPUT
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