Storage engines

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Variabel | Penampungan Penyangga | Status InnoDB ]

=====================================
2026-08-06 01:39:09 0x7ef82434d640 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 36 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 6646 srv_active, 0 srv_shutdown, 762275 srv_idle
srv_master_thread log flush and writes: 768866
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 191258
OS WAIT ARRAY INFO: signal count 125124
RW-shared spins 8447, rounds 239479, OS waits 7889
RW-excl spins 1590, rounds 10945, OS waits 167
RW-sx spins 41, rounds 975, OS waits 19
Spin rounds per wait: 28.35 RW-shared, 6.88 RW-excl, 23.78 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 5357971
Purge done for trx's n:o < 5357971 undo n:o < 0 state: running but idle
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421082294871448, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294867224, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294863000, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294858776, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294854552, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294850328, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294846104, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294841880, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294837656, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294833432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421082294829208, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
177948 OS file reads, 129114 OS file writes, 63431 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 5.69 writes/s, 1.64 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
Ibuf: size 1, free list len 11, seg size 13, 7 merges
merged operations:
 insert 7, delete mark 0, delete 0
discarded operations:
 insert 0, delete mark 0, delete 0
0.00 hash searches/s, 9.67 non-hash searches/s
---
LOG
---
Log sequence number 11276531707
Log flushed up to   11276530544
Pages flushed up to 11276530544
Last checkpoint at  11276530535
0 pending log flushes, 0 pending chkp writes
51676 log i/o's done, 2.36 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 16777216000
Dictionary memory allocated 13000320
Buffer pool size   963217
Free buffers       791437
Database pages     171780
Old database pages 63568
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 3, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 171483, created 297, written 58811
0.00 reads/s, 0.00 creates/s, 2.78 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: 171780, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
----------------------
INDIVIDUAL BUFFER POOL INFO
----------------------
---BUFFER POOL 0
Buffer pool size   120390
Free buffers       98103
Database pages     22287
Old database pages 8247
Modified db pages  1
Percent of dirty pages(LRU & free pages): 0.001
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 22272, created 15, written 6148
0.00 reads/s, 0.00 creates/s, 0.25 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: 22287, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 1
Buffer pool size   120397
Free buffers       98986
Database pages     21411
Old database pages 7923
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 21394, created 17, written 4870
0.00 reads/s, 0.00 creates/s, 0.44 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: 21411, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 2
Buffer pool size   120405
Free buffers       99431
Database pages     20974
Old database pages 7762
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 20961, created 13, written 2767
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: 20974, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 3
Buffer pool size   120405
Free buffers       98968
Database pages     21437
Old database pages 7933
Modified db pages  1
Percent of dirty pages(LRU & free pages): 0.001
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 2, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 21416, created 21, written 15583
0.00 reads/s, 0.00 creates/s, 1.19 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: 21437, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 4
Buffer pool size   120405
Free buffers       98502
Database pages     21903
Old database pages 8105
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 21868, created 35, written 11446
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: 21903, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 5
Buffer pool size   120405
Free buffers       99464
Database pages     20941
Old database pages 7750
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 20893, created 48, written 9447
0.00 reads/s, 0.00 creates/s, 0.25 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: 20941, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 6
Buffer pool size   120405
Free buffers       99686
Database pages     20719
Old database pages 7668
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 20649, created 70, written 5754
0.00 reads/s, 0.00 creates/s, 0.08 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: 20719, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
---BUFFER POOL 7
Buffer pool size   120405
Free buffers       98297
Database pages     22108
Old database pages 8180
Modified db pages  1
Percent of dirty pages(LRU & free pages): 0.001
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 22030, created 78, written 2796
0.00 reads/s, 0.00 creates/s, 0.56 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: 22108, unzip_LRU len: 0
I/O sum[0]: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=1375, Main thread ID=139590170035776, state: sleeping
Number of rows inserted 5147, updated 11283, deleted 1290, read 12498397
0.00 inserts/s, 0.97 updates/s, 0.00 deletes/s, 1.19 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 19359
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================