Motores de almacenamiento

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Variables | Reserva de búfers | Estado del InnoDB ]

=====================================
2025-04-05 22:31:03 0x42b4 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 12 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 7 srv_active, 0 srv_shutdown, 6346 srv_idle
srv_master_thread log flush and writes: 6353
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 237
OS WAIT ARRAY INFO: signal count 102
RW-shared spins 8, rounds 240, OS waits 8
RW-excl spins 2, rounds 2, OS waits 0
RW-sx spins 2, rounds 3, OS waits 0
Spin rounds per wait: 30.00 RW-shared, 1.00 RW-excl, 1.50 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 66532
Purge done for trx's n:o < 66532 undo n:o < 0 state: running but idle
History list length 6
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283121334657312, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283121334653144, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283121334648976, 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
535 OS file reads, 220 OS file writes, 61 OS fsyncs
0.92 reads/s, 16384 avg bytes/read, 2.75 writes/s, 1.58 fsyncs/s
-------------------------------------
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 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
4.92 hash searches/s, 28.50 non-hash searches/s
---
LOG
---
Log sequence number 19597223
Log flushed up to   19597203
Pages flushed up to 19591473
Last checkpoint at  19585974
0 pending log flushes, 0 pending chkp writes
45 log i/o's done, 1.08 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 85136
Buffer pool size   1003
Free buffers       739
Database pages     262
Old database pages 0
Modified db pages  13
Percent of dirty pages(LRU & free pages): 1.297
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 498, created 132, written 173
0.92 reads/s, 0.00 creates/s, 1.50 writes/s
Buffer pool hit rate 987 / 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: 262, unzip_LRU len: 0
I/O sum[12]:cur[17], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=6128, Main thread ID=7964, state: sleeping
Number of rows inserted 0, updated 16, deleted 0, read 536
0.00 inserts/s, 0.92 updates/s, 0.00 deletes/s, 8.50 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 0
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================