Механізми зберігання
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Змінні
|
Буферний пул
|
Статус InnoDB
]
=====================================
2024-09-20 00:53:30 0x7ff69e3a6700 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 36 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 36 srv_active, 0 srv_shutdown, 426 srv_idle
srv_master_thread log flush and writes: 0
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 83
OS WAIT ARRAY INFO: signal count 83
RW-shared spins 1, rounds 1, OS waits 0
RW-excl spins 6, rounds 180, OS waits 6
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 10088
Purge done for trx's n:o < 10088 undo n:o < 0 state: running but idle
History list length 7
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422172767878608, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422172767877736, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422172767876864, 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
1508 OS file reads, 1573 OS file writes, 568 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 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
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 1 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 7 buffer(s)
1337.16 hash searches/s, 379.27 non-hash searches/s
---
LOG
---
Log sequence number 51077068
Log buffer assigned up to 51077068
Log buffer completed up to 51077068
Log written up to 51077068
Log flushed up to 51077068
Added dirty pages up to 51077068
Pages flushed up to 51077068
Last checkpoint at 51077068
444 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 673391
Buffer pool size 8192
Free buffers 6635
Database pages 1536
Old database pages 587
Modified db pages 0
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 1373, created 163, written 995
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: 1536, 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=364, Main thread ID=140697278547712 , state=sleeping
Number of rows inserted 87, updated 491, deleted 0, read 1336014
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1459.24 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================
