Motori di memorizzazione
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabili
|
Buffer Pool
|
Stato InnoDB
]
=====================================
2024-12-20 22:50:15 0x7f619c6e8700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 23 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 36 srv_active, 0 srv_shutdown, 231 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 222
OS WAIT ARRAY INFO: signal count 219
RW-shared spins 25, rounds 49, OS waits 24
RW-excl spins 20, rounds 586, OS waits 14
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.96 RW-shared, 29.30 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 10527
Purge done for trx's n:o < 10526 undo n:o < 0 state: running but idle
History list length 8
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421532731419240, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421532731418368, 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
1397 OS file reads, 3107 OS file writes, 1191 OS fsyncs
0.30 reads/s, 14189 avg bytes/read, 0.65 writes/s, 0.52 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)
530.93 hash searches/s, 111.00 non-hash searches/s
---
LOG
---
Log sequence number 52227306
Log buffer assigned up to 52227306
Log buffer completed up to 52227306
Log written up to 52227306
Log flushed up to 52227306
Added dirty pages up to 52227306
Pages flushed up to 52227306
Last checkpoint at 52227306
1635 log i/o's done, 0.04 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 677156
Buffer pool size 8192
Free buffers 6578
Database pages 1600
Old database pages 583
Modified db pages 0
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 1274, created 326, written 1273
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: 1600, unzip_LRU len: 0
I/O sum[0]: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=369, Main thread ID=140057248720640 , state=sleeping
Number of rows inserted 951, updated 1426, deleted 459, read 411746
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1350.12 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
