Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Status do InnoDB ]

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2026-11-09 23:37:13 0x6ba0 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 60 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 8146 srv_active, 0 srv_shutdown, 7753 srv_idle
srv_master_thread log flush and writes: 15899
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 9777
OS WAIT ARRAY INFO: signal count 8539
RW-shared spins 4653, rounds 133114, OS waits 4406
RW-excl spins 477, rounds 3442, OS waits 85
RW-sx spins 75, rounds 349, OS waits 4
Spin rounds per wait: 28.61 RW-shared, 7.22 RW-excl, 4.65 RW-sx
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TRANSACTIONS
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Trx id counter 55192
Purge done for trx's n:o < 55191 undo n:o < 0 state: running
History list length 3
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283712783434016, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283712783429848, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283712783425680, 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
11432 OS file reads, 102914 OS file writes, 60293 OS fsyncs
12.65 reads/s, 16384 avg bytes/read, 10.43 writes/s, 6.38 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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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 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 1 buffer(s)
100.11 hash searches/s, 43.00 non-hash searches/s
---
LOG
---
Log sequence number 13417168
Log flushed up to   13417147
Pages flushed up to 13411003
Last checkpoint at  13406576
0 pending log flushes, 0 pending chkp writes
32393 log i/o's done, 3.45 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 172776
Buffer pool size   1003
Free buffers       740
Database pages     257
Old database pages 0
Modified db pages  28
Percent of dirty pages(LRU & free pages): 2.806
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 11361, created 575, written 60063
12.65 reads/s, 0.05 creates/s, 5.75 writes/s
Buffer pool hit rate 977 / 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: 257, unzip_LRU len: 0
I/O sum[887]:cur[1], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=4548, Main thread ID=6812, state: sleeping
Number of rows inserted 104, updated 15622, deleted 22, read 640993
0.00 inserts/s, 2.05 updates/s, 0.00 deletes/s, 125.68 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 5069
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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