ストレージエンジン
InnoDB
Supports transactions, row-level locking, and foreign keys
[
変数
|
バッファプール
|
InnoDB ステータス
]
=====================================
2025-06-02 02:36:21 0x7f79541ce700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 29 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 40 srv_active, 0 srv_shutdown, 293 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 110
OS WAIT ARRAY INFO: signal count 111
RW-shared spins 8, rounds 15, OS waits 7
RW-excl spins 10, rounds 291, OS waits 7
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.88 RW-shared, 29.10 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 10168
Purge done for trx's n:o < 10159 undo n:o < 0 state: running but idle
History list length 27
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421634106686056, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421634106685184, 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
1470 OS file reads, 2388 OS file writes, 910 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.66 writes/s, 0.55 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 2 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 2 buffer(s)
Hash table size 34679, node heap has 32 buffer(s)
660.70 hash searches/s, 287.99 non-hash searches/s
---
LOG
---
Log sequence number 51509754
Log buffer assigned up to 51509754
Log buffer completed up to 51509754
Log written up to 51509754
Log flushed up to 51509754
Added dirty pages up to 51509754
Pages flushed up to 51509754
Last checkpoint at 51509754
924 log i/o's done, 0.20 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 873052
Buffer pool size 8192
Free buffers 6526
Database pages 1592
Old database pages 567
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 818, not young 449
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1337, created 261, written 1267
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: 1592, unzip_LRU len: 0
I/O sum[13]: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=367, Main thread ID=140158620874496 , state=sleeping
Number of rows inserted 618, updated 1130, deleted 0, read 607157
0.03 inserts/s, 0.00 updates/s, 0.00 deletes/s, 996.69 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
