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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2026-10-13 20:10:34 0x7fb47851e640 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 14 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 39283 srv_active, 0 srv_shutdown, 61092 srv_idle
srv_master_thread log flush and writes: 100374
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 1437350
OS WAIT ARRAY INFO: signal count 1266272
RW-shared spins 1272096, rounds 22458743, OS waits 660757
RW-excl spins 855492, rounds 2885503, OS waits 20363
RW-sx spins 9345, rounds 54951, OS waits 1353
Spin rounds per wait: 17.65 RW-shared, 3.37 RW-excl, 5.88 RW-sx
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TRANSACTIONS
------------
Trx id counter 570759
Purge done for trx's n:o < 570759 undo n:o < 0 state: running but idle
History list length 8
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421888009117960, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421888009113744, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
29410502 OS file reads, 2119499 OS file writes, 525312 OS fsyncs
113.85 reads/s, 16384 avg bytes/read, 12.78 writes/s, 7.07 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 405, seg size 407, 537987 merges
merged operations:
insert 4630043, delete mark 836, delete 313
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 2 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)
70.35 hash searches/s, 273.48 non-hash searches/s
---
LOG
---
Log sequence number 23415517811
Log flushed up to 23415517791
Pages flushed up to 23415511187
Last checkpoint at 23415505852
0 pending log flushes, 0 pending chkp writes
262441 log i/o's done, 3.64 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 946720
Buffer pool size 1003
Free buffers 738
Database pages 256
Old database pages 0
Modified db pages 11
Percent of dirty pages(LRU & free pages): 1.106
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1457747, not young 405342296
9.86 youngs/s, 232.77 non-youngs/s
Pages read 29410194, created 156065, written 1765984
113.85 reads/s, 0.07 creates/s, 7.79 writes/s
Buffer pool hit rate 884 / 1000, young-making rate 9 / 1000 not 235 / 1000
Pages read ahead 27.07/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 256, unzip_LRU len: 0
I/O sum[6346]:cur[3], 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=16363, Main thread ID=140412169725504, state: sleeping
Number of rows inserted 6741966, updated 63948, deleted 20686, read 2471808176
0.07 inserts/s, 2.21 updates/s, 0.00 deletes/s, 768.02 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 141921
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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