Speicher-Engines
InnoDB
Supports transactions, row-level locking, foreign keys and encryption for tables
[
Variablen
|
Puffer-Pool
|
InnoDB-Status
]
=====================================
2026-10-03 00:13:38 0x10c1c INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 35 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 2046 srv_active, 0 srv_shutdown, 1250454 srv_idle
srv_master_thread log flush and writes: 1252461
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 1985
OS WAIT ARRAY INFO: signal count 1650
RW-shared spins 717, rounds 18200, OS waits 584
RW-excl spins 40, rounds 417, OS waits 8
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 25.38 RW-shared, 10.43 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 8664
Purge done for trx's n:o < 8664 undo n:o < 0 state: running
History list length 8
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284153255223800, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284153255219632, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284153255215464, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284153255211296, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284153255207128, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284153255202960, 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
6928 OS file reads, 26363 OS file writes, 14419 OS fsyncs
5.14 reads/s, 16384 avg bytes/read, 17.31 writes/s, 9.63 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)
12.83 hash searches/s, 34.03 non-hash searches/s
---
LOG
---
Log sequence number 5630026
Log flushed up to 5630006
Pages flushed up to 5620400
Last checkpoint at 5619048
0 pending log flushes, 0 pending chkp writes
7526 log i/o's done, 4.71 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 80128
Buffer pool size 1003
Free buffers 740
Database pages 259
Old database pages 0
Modified db pages 33
Percent of dirty pages(LRU & free pages): 3.300
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 6893, created 301, written 16168
5.14 reads/s, 0.00 creates/s, 10.54 writes/s
Buffer pool hit rate 965 / 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: 259, unzip_LRU len: 0
I/O sum[694]:cur[1], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=6060, Main thread ID=7708, state: sleeping
Number of rows inserted 24, updated 4174, deleted 0, read 24725
0.11 inserts/s, 3.06 updates/s, 0.00 deletes/s, 41.74 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 3055
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
