Механізми зберігання

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Змінні | Буферний пул | Статус InnoDB ]

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2025-11-12 11:33:06 0x7fd7800b5700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 17 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 20 srv_active, 0 srv_shutdown, 118 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 252
OS WAIT ARRAY INFO: signal count 264
RW-shared spins 67, rounds 122, OS waits 55
RW-excl spins 196, rounds 1131, OS waits 18
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.82 RW-shared, 5.77 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10188
Purge done for trx's n:o < 10186 undo n:o < 0 state: running but idle
History list length 41
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422038570658408, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422038570657536, 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
1373 OS file reads, 2246 OS file writes, 601 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 2.65 writes/s, 0.12 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 4 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
200.34 hash searches/s, 98.11 non-hash searches/s
---
LOG
---
Log sequence number          52040036
Log buffer assigned up to    52040036
Log buffer completed up to   52040036
Log written up to            52040036
Log flushed up to            52040036
Added dirty pages up to      52040036
Pages flushed up to          52040036
Last checkpoint at           52040036
1088 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 467793
Buffer pool size   8192
Free buffers       6777
Database pages     1394
Old database pages 525
Modified db pages  1
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 676, not young 2420
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1240, created 339, written 994
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: 1394, unzip_LRU len: 0
I/O sum[9]: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=368, Main thread ID=140563085997824 , state=sleeping
Number of rows inserted 49351, updated 1752, deleted 1533, read 148414
966.35 inserts/s, 0.00 updates/s, 0.00 deletes/s, 309.28 reads/s
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END OF INNODB MONITOR OUTPUT
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