Moteurs de stockage
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variables
|
Mémoire tampon
|
État InnoDB
]
=====================================
2025-06-29 02:17:22 0x7f3c26ec9700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 32 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 13 srv_active, 0 srv_shutdown, 80 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 28
OS WAIT ARRAY INFO: signal count 28
RW-shared spins 1, rounds 2, OS waits 1
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 2.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 9853
Purge done for trx's n:o < 9853 undo n:o < 0 state: running but idle
History list length 83
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421371884985808, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421371884984936, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421371884984064, 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
1217 OS file reads, 459 OS file writes, 164 OS fsyncs
0.91 reads/s, 13735 avg bytes/read, 1.84 writes/s, 1.06 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 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
551.80 hash searches/s, 282.77 non-hash searches/s
---
LOG
---
Log sequence number 50969322
Log buffer assigned up to 50969322
Log buffer completed up to 50969322
Log written up to 50969322
Log flushed up to 50969322
Added dirty pages up to 50969322
Pages flushed up to 50966786
Last checkpoint at 50966786
137 log i/o's done, 0.85 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 611011
Buffer pool size 8192
Free buffers 6932
Database pages 1246
Old database pages 439
Modified db pages 13
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 53, not young 23
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1102, created 147, written 269
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: 1246, unzip_LRU len: 0
I/O sum[13]: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=363, Main thread ID=139896401364736 , state=sleeping
Number of rows inserted 71, updated 350, deleted 0, read 136745
1.41 inserts/s, 0.37 updates/s, 0.00 deletes/s, 1181.74 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
