Storage engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[
Variabel
|
Penampungan Penyangga
|
Status InnoDB
]
=====================================
2026-08-27 10:41:32 0x3628 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 7 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 9358 srv_active, 0 srv_shutdown, 12815 srv_idle
srv_master_thread log flush and writes: 22173
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 174757
OS WAIT ARRAY INFO: signal count 47164
RW-shared spins 5509, rounds 143990, OS waits 4549
RW-excl spins 7343, rounds 54363, OS waits 883
RW-sx spins 28, rounds 961, OS waits 29
Spin rounds per wait: 26.14 RW-shared, 7.40 RW-excl, 34.32 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 28374
Purge done for trx's n:o < 28374 undo n:o < 0 state: running
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283316499297264, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499351448, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499334776, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499347280, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499338944, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499330608, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499326440, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499322272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499318104, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499313936, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499309768, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499305600, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499301432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499293096, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499288928, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499284760, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499280592, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499276424, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499255584, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499247248, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499272256, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499268088, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499263920, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499259752, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283316499251416, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
67316 OS file reads, 101818 OS file writes, 60686 OS fsyncs
8.57 reads/s, 16384 avg bytes/read, 11.71 writes/s, 7.28 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 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
44.99 hash searches/s, 40.71 non-hash searches/s
---
LOG
---
Log sequence number 25375832
Log flushed up to 25375812
Pages flushed up to 25357153
Last checkpoint at 25356821
0 pending log flushes, 0 pending chkp writes
30047 log i/o's done, 4.43 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 165264
Buffer pool size 1003
Free buffers 722
Database pages 274
Old database pages 0
Modified db pages 42
Percent of dirty pages(LRU & free pages): 4.213
Max dirty pages percent: 75.000
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 67280, created 1857, written 60809
8.57 reads/s, 0.00 creates/s, 6.43 writes/s
Buffer pool hit rate 984 / 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: 274, unzip_LRU len: 0
I/O sum[858]:cur[2], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=1544, Main thread ID=11712, state: sleeping
Number of rows inserted 16916, updated 12610, deleted 1, read 12711423
0.00 inserts/s, 3.00 updates/s, 0.00 deletes/s, 646.19 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 20996
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
