Moteurs de stockage
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[
Variables
|
Mémoire tampon
|
État InnoDB
]
=====================================
2026-10-31 21:33:55 0x2f9c INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 43 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 12585 srv_active, 0 srv_shutdown, 1082981 srv_idle
srv_master_thread log flush and writes: 1095566
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 36033
OS WAIT ARRAY INFO: signal count 35844
RW-shared spins 25354, rounds 733075, OS waits 23714
RW-excl spins 127, rounds 960, OS waits 23
RW-sx spins 5, rounds 143, OS waits 4
Spin rounds per wait: 28.91 RW-shared, 7.56 RW-excl, 28.60 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 5251675
Purge done for trx's n:o < 5251675 undo n:o < 0 state: running but idle
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283425819181344, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283425819177176, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283425819173008, 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
185013 OS file reads, 166550 OS file writes, 120243 OS fsyncs
2.23 reads/s, 16384 avg bytes/read, 7.35 writes/s, 3.35 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 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)
6.16 hash searches/s, 19.65 non-hash searches/s
---
LOG
---
Log sequence number 45532368367
Log flushed up to 45532368347
Pages flushed up to 45532347895
Last checkpoint at 45532347807
0 pending log flushes, 0 pending chkp writes
75624 log i/o's done, 2.44 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size 1003
Free buffers 732
Database pages 265
Old database pages 0
Modified db pages 55
Percent of dirty pages(LRU & free pages): 5.511
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 17499, not young 566207
0.00 youngs/s, 0.00 non-youngs/s
Pages read 184910, created 842, written 74835
2.23 reads/s, 0.07 creates/s, 4.49 writes/s
Buffer pool hit rate 970 / 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: 265, unzip_LRU len: 0
I/O sum[286]:cur[7], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=6176, Main thread ID=7784, state: sleeping
Number of rows inserted 349, updated 15140, deleted 27, read 118868018
0.00 inserts/s, 1.84 updates/s, 0.00 deletes/s, 5.74 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 25069
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
