Motori di memorizzazione
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabili
|
Buffer Pool
|
Stato InnoDB
]
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2025-10-21 02:42:55 0x7f24980ad700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 57 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 30 srv_active, 0 srv_shutdown, 696 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 83
OS WAIT ARRAY INFO: signal count 81
RW-shared spins 2, rounds 3, OS waits 1
RW-excl spins 4, rounds 120, OS waits 4
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.50 RW-shared, 30.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 9947
Purge done for trx's n:o < 9943 undo n:o < 0 state: running but idle
History list length 14
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421270160530024, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421270160529152, 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
1307 OS file reads, 1271 OS file writes, 447 OS fsyncs
0.07 reads/s, 12544 avg bytes/read, 2.54 writes/s, 1.26 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 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 6 buffer(s)
231.79 hash searches/s, 77.75 non-hash searches/s
---
LOG
---
Log sequence number 51048433
Log buffer assigned up to 51048433
Log buffer completed up to 51048433
Log written up to 51048433
Log flushed up to 51048433
Added dirty pages up to 51048433
Pages flushed up to 51048433
Last checkpoint at 51048433
303 log i/o's done, 0.72 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 702402
Buffer pool size 8192
Free buffers 6843
Database pages 1333
Old database pages 472
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 150, not young 58
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1172, created 337, written 760
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 1 / 1000 not 0 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1333, unzip_LRU len: 0
I/O sum[81]: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=368, Main thread ID=139794672719616 , state=sleeping
Number of rows inserted 24658, updated 434, deleted 0, read 296287
0.44 inserts/s, 0.35 updates/s, 0.00 deletes/s, 477.54 reads/s
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END OF INNODB MONITOR OUTPUT
============================
