存储引擎

InnoDB

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

[ 变量 | 缓冲池 | InnoDB 状态 ]

=====================================
2026-02-24 07:26:04 0x1acac INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 56 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 28183 srv_active, 0 srv_shutdown, 13081824 srv_idle
srv_master_thread log flush and writes: 13030683
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 41867
OS WAIT ARRAY INFO: signal count 41075
RW-shared spins 0, rounds 79303, OS waits 39642
RW-excl spins 0, rounds 1340, OS waits 43
RW-sx spins 4, rounds 120, OS waits 4
Spin rounds per wait: 79303.00 RW-shared, 1340.00 RW-excl, 30.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 108772
Purge done for trx's n:o < 108772 undo n:o < 0 state: running
History list length 12
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 282973602517784, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602509352, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602505136, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602526216, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602522000, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602513568, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602500920, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282973602496704, 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
67851 OS file reads, 372987 OS file writes, 244923 OS fsyncs
10.32 reads/s, 16384 avg bytes/read, 20.32 writes/s, 12.05 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 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)
14.77 hash searches/s, 65.36 non-hash searches/s
---
LOG
---
Log sequence number 71550703
Log flushed up to   71550683
Pages flushed up to 71426494
Last checkpoint at  71356289
0 pending log flushes, 0 pending chkp writes
154117 log i/o's done, 7.61 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 88128
Buffer pool size   1002
Free buffers       744
Database pages     255
Old database pages 0
Modified db pages  195
Percent of dirty pages(LRU & free pages): 19.500
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 67689, created 2239, written 186437
10.32 reads/s, 0.00 creates/s, 10.61 writes/s
Buffer pool hit rate 956 / 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: 255, unzip_LRU len: 0
I/O sum[1091]:cur[20], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=59476, Main thread ID=64504, state: sleeping
Number of rows inserted 1, updated 43491, deleted 0, read 268233
0.00 inserts/s, 6.16 updates/s, 0.00 deletes/s, 14.37 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 26821
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 5.48 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================