Speicher-Engines

InnoDB

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

[ Variablen | Puffer-Pool | InnoDB-Status ]

=====================================
2026-05-26 18:51:06 0x6c50 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 31 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 12684 srv_active, 0 srv_shutdown, 14675 srv_idle
srv_master_thread log flush and writes: 27359
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 10444
OS WAIT ARRAY INFO: signal count 10222
RW-shared spins 3653, rounds 108869, OS waits 3621
RW-excl spins 1117, rounds 24444, OS waits 765
RW-sx spins 13, rounds 326, OS waits 9
Spin rounds per wait: 29.80 RW-shared, 21.88 RW-excl, 25.08 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 58696
Purge done for trx's n:o < 58696 undo n:o < 0 state: running but idle
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284636351037944, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284636351033776, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284636351029608, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284636351025440, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284636351021272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284636351017104, 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
57783 OS file reads, 136722 OS file writes, 77001 OS fsyncs
5.61 reads/s, 16384 avg bytes/read, 13.84 writes/s, 6.29 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 2 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
11.77 hash searches/s, 25.71 non-hash searches/s
---
LOG
---
Log sequence number 44210738
Log flushed up to   44210718
Pages flushed up to 44209424
Last checkpoint at  44170880
0 pending log flushes, 0 pending chkp writes
40178 log i/o's done, 3.65 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 959032
Buffer pool size   1003
Free buffers       737
Database pages     258
Old database pages 0
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.301
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 557, not young 7799
0.00 youngs/s, 0.00 non-youngs/s
Pages read 57391, created 1150, written 82678
5.61 reads/s, 0.10 creates/s, 9.23 writes/s
Buffer pool hit rate 964 / 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: 258, unzip_LRU len: 0
I/O sum[657]:cur[33], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=3932, Main thread ID=18616, state: sleeping
Number of rows inserted 121, updated 19757, deleted 20, read 563708
0.06 inserts/s, 2.10 updates/s, 0.06 deletes/s, 227.64 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 226161
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================