Motores de almacenamiento
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
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Variables
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Reserva de búfers
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Estado del InnoDB
]
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2026-09-04 19:10:17 0x16d8 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 42 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 23105 srv_active, 0 srv_shutdown, 1373462 srv_idle
srv_master_thread log flush and writes: 1396567
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 66430
OS WAIT ARRAY INFO: signal count 49902
RW-shared spins 34094, rounds 1000261, OS waits 33288
RW-excl spins 5704, rounds 24393, OS waits 65
RW-sx spins 9, rounds 144, OS waits 4
Spin rounds per wait: 29.34 RW-shared, 4.28 RW-excl, 16.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 130782
Purge done for trx's n:o < 130782 undo n:o < 0 state: running
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283583718490328, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283583718486160, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
56458 OS file reads, 272362 OS file writes, 191806 OS fsyncs
3.00 reads/s, 16384 avg bytes/read, 8.69 writes/s, 5.00 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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
11.38 hash searches/s, 29.57 non-hash searches/s
---
LOG
---
Log sequence number 80671310
Log flushed up to 80671290
Pages flushed up to 80653896
Last checkpoint at 80652442
0 pending log flushes, 0 pending chkp writes
115436 log i/o's done, 2.90 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 210336
Buffer pool size 1003
Free buffers 739
Database pages 256
Old database pages 0
Modified db pages 32
Percent of dirty pages(LRU & free pages): 3.213
Max dirty pages percent: 75.000
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 56371, created 1307, written 130648
3.00 reads/s, 0.05 creates/s, 4.95 writes/s
Buffer pool hit rate 971 / 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: 256, unzip_LRU len: 0
I/O sum[325]:cur[9], 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=7780, Main thread ID=1008, state: sleeping
Number of rows inserted 893, updated 25375, deleted 499, read 1775297
0.00 inserts/s, 1.62 updates/s, 0.00 deletes/s, 12.57 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 108544
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
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