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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2025-07-27 07:24:16 0x1ee0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 26 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 1960 srv_active, 0 srv_shutdown, 467287 srv_idle
srv_master_thread log flush and writes: 469246
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 31430
OS WAIT ARRAY INFO: signal count 5866
RW-shared spins 3134, rounds 93535, OS waits 3114
RW-excl spins 71, rounds 180, OS waits 1
RW-sx spins 1, rounds 0, OS waits 0
Spin rounds per wait: 29.85 RW-shared, 2.54 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 8827
Purge done for trx's n:o < 8827 undo n:o < 0 state: running
History list length 1
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283910961750232, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283910961746064, 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
3991 OS file reads, 22686 OS file writes, 16553 OS fsyncs
0.15 reads/s, 16384 avg bytes/read, 0.04 writes/s, 0.04 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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 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 0 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)
0.85 hash searches/s, 1.92 non-hash searches/s
---
LOG
---
Log sequence number 5615459
Log flushed up to 5615439
Pages flushed up to 5613956
Last checkpoint at 5613947
0 pending log flushes, 0 pending chkp writes
10211 log i/o's done, 0.04 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 110176
Buffer pool size 1003
Free buffers 737
Database pages 260
Old database pages 0
Modified db pages 11
Percent of dirty pages(LRU & free pages): 1.102
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 3943, created 213, written 10288
0.15 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 983 / 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: 260, unzip_LRU len: 0
I/O sum[11]:cur[2], 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=10216, Main thread ID=5776, state: sleeping
Number of rows inserted 5, updated 1962, deleted 22, read 26649
0.00 inserts/s, 0.04 updates/s, 0.00 deletes/s, 0.77 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 2380
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
============================
