Motori di memorizzazione
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabili
|
Buffer Pool
|
Stato InnoDB
]
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2025-07-03 06:12:26 0x7f88100cc700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 26 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 30 srv_active, 0 srv_shutdown, 667 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 53
OS WAIT ARRAY INFO: signal count 52
RW-shared spins 4, rounds 7, OS waits 3
RW-excl spins 2, rounds 30, OS waits 1
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.75 RW-shared, 15.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 9881
Purge done for trx's n:o < 9872 undo n:o < 0 state: running but idle
History list length 11
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421697387760232, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421697387759360, 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
1312 OS file reads, 1202 OS file writes, 380 OS fsyncs
0.35 reads/s, 14677 avg bytes/read, 2.23 writes/s, 0.46 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 2 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 4 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
624.36 hash searches/s, 374.95 non-hash searches/s
---
LOG
---
Log sequence number 51046093
Log buffer assigned up to 51046093
Log buffer completed up to 51046093
Log written up to 51046093
Log flushed up to 51046093
Added dirty pages up to 51046093
Pages flushed up to 51046093
Last checkpoint at 51046093
265 log i/o's done, 0.26 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 643655
Buffer pool size 8192
Free buffers 6831
Database pages 1339
Old database pages 479
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 93, not young 690964
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1181, created 334, written 743
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 1 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1339, unzip_LRU len: 0
I/O sum[40]: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=366, Main thread ID=140221901645568 , state=sleeping
Number of rows inserted 49234, updated 404, deleted 21, read 1350283
1260.37 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1907.12 reads/s
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END OF INNODB MONITOR OUTPUT
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