Speicher-Engines
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variablen
|
Puffer-Pool
|
InnoDB-Status
]
=====================================
2026-04-02 13:42:55 0x7f4996bb5700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 56 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 45 srv_active, 0 srv_shutdown, 682 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 114
OS WAIT ARRAY INFO: signal count 114
RW-shared spins 3, rounds 4, OS waits 1
RW-excl spins 0, rounds 2, OS waits 2
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.33 RW-shared, 2.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 10016
Purge done for trx's n:o < 10016 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421430500933072, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421430500932200, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421430500931328, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (write thread)
I/O thread 7 state: waiting for completed aio requests (write thread)
I/O thread 8 state: waiting for completed aio requests (write thread)
I/O thread 9 state: waiting for completed aio requests (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
1559 OS file reads, 1314 OS file writes, 506 OS fsyncs
0.09 reads/s, 13312 avg bytes/read, 2.68 writes/s, 0.66 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 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 25 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 31 buffer(s)
2579.72 hash searches/s, 1721.36 non-hash searches/s
---
LOG
---
Log sequence number 51027129
Log buffer assigned up to 51027129
Log buffer completed up to 51027129
Log written up to 51027129
Log flushed up to 51027129
Added dirty pages up to 51027129
Pages flushed up to 51027129
Last checkpoint at 51027129
343 log i/o's done, 0.55 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 684375
Buffer pool size 8192
Free buffers 6550
Database pages 1568
Old database pages 558
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 447, not young 164275
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1416, created 167, written 828
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: 1568, unzip_LRU len: 0
I/O sum[88]: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=370, Main thread ID=139955012581120 , state=sleeping
Number of rows inserted 233, updated 433, deleted 0, read 2321500
1.71 inserts/s, 0.16 updates/s, 0.00 deletes/s, 3504.72 reads/s
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END OF INNODB MONITOR OUTPUT
============================
