Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Status do InnoDB ]

=====================================
2026-10-21 11:51:16 0xe30 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 17 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 7469 srv_active, 0 srv_shutdown, 4412 srv_idle
srv_master_thread log flush and writes: 11881
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 4515
OS WAIT ARRAY INFO: signal count 4364
RW-shared spins 2042, rounds 59590, OS waits 1976
RW-excl spins 773, rounds 10658, OS waits 304
RW-sx spins 3, rounds 90, OS waits 3
Spin rounds per wait: 29.18 RW-shared, 13.79 RW-excl, 30.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 102610
Purge done for trx's n:o < 102610 undo n:o < 0 state: running but idle
History list length 6
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283884018479680, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283884018475512, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283884018458840, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283884018454672, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283884018471344, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283884018467176, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283884018463008, not started flushing log
mysql tables in use 1, locked 1
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: 1; buffer pool: 0
52900 OS file reads, 99152 OS file writes, 54480 OS fsyncs
15.88 reads/s, 16384 avg bytes/read, 18.35 writes/s, 11.06 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 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 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 1 buffer(s)
32.29 hash searches/s, 83.11 non-hash searches/s
---
LOG
---
Log sequence number 50474787
Log flushed up to   50473513
Pages flushed up to 50385203
Last checkpoint at  50353964
1 pending log flushes, 0 pending chkp writes
27503 log i/o's done, 7.94 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 1317104
Buffer pool size   1003
Free buffers       741
Database pages     254
Old database pages 0
Modified db pages  113
Percent of dirty pages(LRU & free pages): 11.345
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 119, not young 5085
0.00 youngs/s, 0.00 non-youngs/s
Pages read 52371, created 894, written 60689
15.88 reads/s, 0.29 creates/s, 8.88 writes/s
Buffer pool hit rate 952 / 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: 254, unzip_LRU len: 0
I/O sum[843]:cur[12], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=3972, Main thread ID=5612, state: sleeping
Number of rows inserted 267, updated 15494, deleted 244, read 449811
0.00 inserts/s, 6.65 updates/s, 0.00 deletes/s, 39.06 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 186702
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================