Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Estado do InnoDB ]

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2026-08-08 15:08:54 0x3658 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 8 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 7244 srv_active, 0 srv_shutdown, 14796 srv_idle
srv_master_thread log flush and writes: 22040
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 110978
OS WAIT ARRAY INFO: signal count 11891
RW-shared spins 2293, rounds 64547, OS waits 2006
RW-excl spins 131, rounds 2637, OS waits 61
RW-sx spins 2, rounds 60, OS waits 1
Spin rounds per wait: 28.15 RW-shared, 20.13 RW-excl, 30.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 24718
Purge done for trx's n:o < 24718 undo n:o < 0 state: running but idle
History list length 9
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284113327137272, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327133104, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327128936, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327124768, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327120600, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284113327116432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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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
16918 OS file reads, 78612 OS file writes, 44355 OS fsyncs
0.25 reads/s, 16384 avg bytes/read, 1.37 writes/s, 1.00 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 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)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
2.62 hash searches/s, 5.25 non-hash searches/s
---
LOG
---
Log sequence number 12454330
Log flushed up to   12454330
Pages flushed up to 12454330
Last checkpoint at  12454287
0 pending log flushes, 0 pending chkp writes
22254 log i/o's done, 0.62 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 82632
Buffer pool size   1003
Free buffers       743
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 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 16881, created 488, written 48699
0.25 reads/s, 0.00 creates/s, 0.62 writes/s
Buffer pool hit rate 981 / 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[34]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=12224, Main thread ID=10352, state: sleeping
Number of rows inserted 56, updated 10574, deleted 0, read 232343
0.00 inserts/s, 0.25 updates/s, 0.00 deletes/s, 2.62 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 8519
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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