Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabel
|
Penampungan Penyangga
|
Status InnoDB
]
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2025-04-19 11:24:18 0x7f37c43db700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 23 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 17 srv_active, 0 srv_shutdown, 493 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 31
OS WAIT ARRAY INFO: signal count 27
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 2, rounds 60, OS waits 2
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 9855
Purge done for trx's n:o < 9853 undo n:o < 0 state: running but idle
History list length 84
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421353126252856, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421353126251984, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421353126251112, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421353126250240, 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
1463 OS file reads, 500 OS file writes, 217 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 0 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 25 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 30 buffer(s)
1154.04 hash searches/s, 624.84 non-hash searches/s
---
LOG
---
Log sequence number 50968377
Log buffer assigned up to 50968377
Log buffer completed up to 50968377
Log written up to 50968377
Log flushed up to 50968377
Added dirty pages up to 50968377
Pages flushed up to 50968377
Last checkpoint at 50968377
133 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 670443
Buffer pool size 8192
Free buffers 6665
Database pages 1458
Old database pages 518
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 160, not young 89076
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1314, created 147, written 293
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: 1458, unzip_LRU len: 0
I/O sum[6]: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=365, Main thread ID=139877641561856 , state=sleeping
Number of rows inserted 19, updated 351, deleted 0, read 629513
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1807.01 reads/s
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END OF INNODB MONITOR OUTPUT
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