Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabel
|
Penampungan Penyangga
|
Status InnoDB
]
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2025-12-15 07:07:08 0x7f1404079700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 15 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 38 srv_active, 0 srv_shutdown, 342 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 88
OS WAIT ARRAY INFO: signal count 87
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 3, rounds 90, OS waits 3
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 10003
Purge done for trx's n:o < 10003 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421198942042728, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421198942041856, 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
1418 OS file reads, 1203 OS file writes, 426 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 fsyncs/s
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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 8 buffer(s)
320.91 hash searches/s, 105.53 non-hash searches/s
---
LOG
---
Log sequence number 51023631
Log buffer assigned up to 51023631
Log buffer completed up to 51023631
Log written up to 51023631
Log flushed up to 51023631
Added dirty pages up to 51023631
Pages flushed up to 51023631
Last checkpoint at 51023631
326 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 841263
Buffer pool size 8192
Free buffers 6753
Database pages 1422
Old database pages 504
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 266, not young 65
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1271, created 242, written 728
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: 1422, unzip_LRU len: 0
I/O sum[165]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=370, Main thread ID=139723453429504 , state=sleeping
Number of rows inserted 32868, updated 417, deleted 0, read 448623
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 800.35 reads/s
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END OF INNODB MONITOR OUTPUT
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