Moteurs de stockage

InnoDB

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

[ Variables | Mémoire tampon | État InnoDB ]

=====================================
2025-07-22 13:43:19 0x25d0 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 14 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 605787 srv_active, 0 srv_shutdown, 535199 srv_idle
srv_master_thread log flush and writes: 1140986
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 733592
OS WAIT ARRAY INFO: signal count 728555
RW-shared spins 422875, rounds 12544257, OS waits 417718
RW-excl spins 1062, rounds 25565, OS waits 801
RW-sx spins 61, rounds 1657, OS waits 53
Spin rounds per wait: 29.66 RW-shared, 24.07 RW-excl, 27.16 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 5695314
Purge done for trx's n:o < 5695314 undo n:o < 0 state: running but idle
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284398094852312, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284398094848144, 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
1423744 OS file reads, 7284103 OS file writes, 4353636 OS fsyncs
1.79 reads/s, 16384 avg bytes/read, 8.00 writes/s, 4.64 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)
10.21 hash searches/s, 18.57 non-hash searches/s
---
LOG
---
Log sequence number 3690792126
Log flushed up to   3690792126
Pages flushed up to 3690792126
Last checkpoint at  3690790804
0 pending log flushes, 0 pending chkp writes
2400938 log i/o's done, 2.36 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 247896
Buffer pool size   1003
Free buffers       741
Database pages     256
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 1423642, created 47581, written 4168379
1.79 reads/s, 0.00 creates/s, 4.86 writes/s
Buffer pool hit rate 974 / 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: 256, unzip_LRU len: 0
I/O sum[212]:cur[0], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=3684, Main thread ID=5212, state: sleeping
Number of rows inserted 1033, updated 934727, deleted 32, read 39663333
0.00 inserts/s, 1.00 updates/s, 0.00 deletes/s, 8.21 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 56308937
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================