Motores de almacenamiento
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variables
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Reserva de búfers
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Estado del InnoDB
]
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2025-12-21 22:26:31 0x7f51d00cb700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 33 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 62 srv_active, 0 srv_shutdown, 580 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 241
OS WAIT ARRAY INFO: signal count 241
RW-shared spins 18, rounds 33, OS waits 15
RW-excl spins 10, rounds 300, OS waits 10
RW-sx spins 2, rounds 31, OS waits 1
Spin rounds per wait: 1.83 RW-shared, 30.00 RW-excl, 15.50 RW-sx
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TRANSACTIONS
------------
Trx id counter 10564
Purge done for trx's n:o < 10563 undo n:o < 0 state: running but idle
History list length 9
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421464801016424, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421464801015552, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
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
1682 OS file reads, 3261 OS file writes, 1244 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.27 writes/s, 0.21 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 8 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 30 buffer(s)
279.14 hash searches/s, 81.18 non-hash searches/s
---
LOG
---
Log sequence number 51613956
Log buffer assigned up to 51613956
Log buffer completed up to 51613956
Log written up to 51613956
Log flushed up to 51613956
Added dirty pages up to 51613956
Pages flushed up to 51613956
Last checkpoint at 51613956
1302 log i/o's done, 0.09 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 1071641
Buffer pool size 8192
Free buffers 6362
Database pages 1757
Old database pages 628
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 788, not young 160019
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1479, created 290, written 1735
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: 1757, unzip_LRU len: 0
I/O sum[22]: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=366, Main thread ID=139989384873728 , state=sleeping
Number of rows inserted 846, updated 1156, deleted 0, read 727621
0.00 inserts/s, 0.03 updates/s, 0.00 deletes/s, 843.19 reads/s
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END OF INNODB MONITOR OUTPUT
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