Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabel
|
Penampungan Penyangga
|
Status InnoDB
]
=====================================
2025-05-31 20:25:17 0x7ff9600cb700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 20 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 28 srv_active, 0 srv_shutdown, 540 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 49
OS WAIT ARRAY INFO: signal count 45
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 9862
Purge done for trx's n:o < 9862 undo n:o < 0 state: running but idle
History list length 91
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422184552626792, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422184552625920, 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
1314 OS file reads, 662 OS file writes, 259 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.15 writes/s, 0.05 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 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 1 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 6 buffer(s)
306.08 hash searches/s, 74.45 non-hash searches/s
---
LOG
---
Log sequence number 50993702
Log buffer assigned up to 50993702
Log buffer completed up to 50993702
Log written up to 50993702
Log flushed up to 50993702
Added dirty pages up to 50993702
Pages flushed up to 50993702
Last checkpoint at 50993702
170 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 631836
Buffer pool size 8192
Free buffers 6838
Database pages 1339
Old database pages 475
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 183, not young 1179
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1191, created 256, written 360
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: 1339, unzip_LRU len: 0
I/O sum[1]: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=372, Main thread ID=140709068723968 , state=sleeping
Number of rows inserted 33221, updated 385, deleted 0, read 530379
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 514.42 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
