Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variabel
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Penampungan Penyangga
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Status InnoDB
]
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2025-08-02 09:31:29 0x7faf3c055700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 42 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 9 srv_active, 0 srv_shutdown, 32 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 15
OS WAIT ARRAY INFO: signal count 15
RW-shared spins 0, rounds 0, 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: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9765
Purge done for trx's n:o < 9764 undo n:o < 0 state: running but idle
History list length 59
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421865604016744, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421865604015872, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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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
1140 OS file reads, 292 OS file writes, 92 OS fsyncs
26.51 reads/s, 20720 avg bytes/read, 6.79 writes/s, 2.14 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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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 0 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 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
414.94 hash searches/s, 335.06 non-hash searches/s
---
LOG
---
Log sequence number 50953390
Log buffer assigned up to 50953390
Log buffer completed up to 50953390
Log written up to 50953390
Log flushed up to 50953390
Added dirty pages up to 50953390
Pages flushed up to 50953390
Last checkpoint at 50953390
49 log i/o's done, 1.14 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 440182
Buffer pool size 8192
Free buffers 6995
Database pages 1187
Old database pages 418
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 45, not young 450
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1045, created 145, written 196
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 986 / 1000, young-making rate 0 / 1000 not 6 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1187, unzip_LRU len: 0
I/O sum[18]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=373, Main thread ID=140390118389504 , state=sleeping
Number of rows inserted 48, updated 326, deleted 0, read 30996
1.14 inserts/s, 7.76 updates/s, 0.00 deletes/s, 737.98 reads/s
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END OF INNODB MONITOR OUTPUT
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