Механизмы хранилища

InnoDB

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

[ Переменные | Буферный пул | Состояние InnoDB ]

=====================================
2025-07-10 05:09:57 0x7f38441cb700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 11 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 24587 srv_active, 0 srv_shutdown, 442728 srv_idle
srv_master_thread log flush and writes: 467224
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 67238
OS WAIT ARRAY INFO: signal count 56920
RW-shared spins 19801, rounds 593562, OS waits 19704
RW-excl spins 15, rounds 450, OS waits 15
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 29.98 RW-shared, 30.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 173388
Purge done for trx's n:o < 173369 undo n:o < 0 state: running but idle
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421354851524872, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421354851520656, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
150751 OS file reads, 256877 OS file writes, 172649 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
4.36 hash searches/s, 1.45 non-hash searches/s
---
LOG
---
Log sequence number 191533328
Log flushed up to   191533328
Pages flushed up to 191533328
Last checkpoint at  191533319
0 pending log flushes, 0 pending chkp writes
91336 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 107360
Buffer pool size   1003
Free buffers       741
Database pages     256
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 2732, not young 1837168
0.00 youngs/s, 0.00 non-youngs/s
Pages read 150703, created 1051, written 138266
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: 256, unzip_LRU len: 0
I/O sum[0]: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=281008, Main thread ID=139879283414784, state: sleeping
Number of rows inserted 1, updated 27387, deleted 0, read 13521276
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.91 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 40052
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================