Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Status do InnoDB ]

=====================================
2026-08-15 19:07:07 0x7170 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 35 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 7081 srv_active, 0 srv_shutdown, 122340 srv_idle
srv_master_thread log flush and writes: 129421
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 3427
OS WAIT ARRAY INFO: signal count 3414
RW-shared spins 1866, rounds 55127, OS waits 1834
RW-excl spins 466, rounds 7519, OS waits 223
RW-sx spins 2, rounds 60, OS waits 2
Spin rounds per wait: 29.54 RW-shared, 16.14 RW-excl, 30.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 26679
Purge done for trx's n:o < 26679 undo n:o < 0 state: running but idle
History list length 8
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283766097506520, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283766097502352, 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
22890 OS file reads, 82639 OS file writes, 45207 OS fsyncs
1.83 reads/s, 16384 avg bytes/read, 4.09 writes/s, 1.97 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 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)
7.31 hash searches/s, 18.89 non-hash searches/s
---
LOG
---
Log sequence number 14382741
Log flushed up to   14382721
Pages flushed up to 14357578
Last checkpoint at  14334071
0 pending log flushes, 0 pending chkp writes
23569 log i/o's done, 1.66 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 177784
Buffer pool size   1003
Free buffers       741
Database pages     256
Old database pages 0
Modified db pages  51
Percent of dirty pages(LRU & free pages): 5.110
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 22816, created 514, written 50671
1.83 reads/s, 0.06 creates/s, 2.31 writes/s
Buffer pool hit rate 974 / 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[321]:cur[2], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=4404, Main thread ID=4904, state: sleeping
Number of rows inserted 75, updated 12252, deleted 0, read 282618
0.00 inserts/s, 1.34 updates/s, 0.00 deletes/s, 7.14 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 31580
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================