Speicher-Engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[
Variablen
|
Puffer-Pool
|
InnoDB-Status
]
=====================================
2026-09-29 02:31:42 0x144c INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 51 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 4194 srv_active, 0 srv_shutdown, 11020 srv_idle
srv_master_thread log flush and writes: 15173
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 105198
OS WAIT ARRAY INFO: signal count 2086
RW-shared spins 1019, rounds 29490, OS waits 895
RW-excl spins 30, rounds 687, OS waits 14
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 28.94 RW-shared, 22.90 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 16348
Purge done for trx's n:o < 16348 undo n:o < 0 state: running
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283407626891480, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283407626887312, 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
12135 OS file reads, 52403 OS file writes, 28718 OS fsyncs
1.10 reads/s, 16384 avg bytes/read, 9.92 writes/s, 6.24 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 0 buffer(s)
Hash table size 4441, node heap has 0 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)
6.33 hash searches/s, 15.18 non-hash searches/s
---
LOG
---
Log sequence number 9738656
Log flushed up to 9738656
Pages flushed up to 9738656
Last checkpoint at 9737318
0 pending log flushes, 0 pending chkp writes
14404 log i/o's done, 2.76 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 92648
Buffer pool size 1003
Free buffers 743
Database pages 256
Old database pages 0
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 12099, created 468, written 32508
1.10 reads/s, 0.00 creates/s, 5.80 writes/s
Buffer pool hit rate 982 / 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: 256, unzip_LRU len: 0
I/O sum[349]:cur[3], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=5032, Main thread ID=9712, state: sleeping
Number of rows inserted 65, updated 7914, deleted 1, read 103975
0.00 inserts/s, 1.27 updates/s, 0.00 deletes/s, 5.73 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 10683
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
