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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2026-10-21 14:18:10 0x6ce4 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 15 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 14876 srv_active, 0 srv_shutdown, 5483 srv_idle
srv_master_thread log flush and writes: 20359
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 11553
OS WAIT ARRAY INFO: signal count 10752
RW-shared spins 5793, rounds 160976, OS waits 5257
RW-excl spins 1914, rounds 25188, OS waits 667
RW-sx spins 5, rounds 150, OS waits 5
Spin rounds per wait: 27.79 RW-shared, 13.16 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 143605
Purge done for trx's n:o < 143605 undo n:o < 0 state: running but idle
History list length 5
LIST OF TRANSACTIONS FOR EACH SESSION:
---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
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)
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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
104380 OS file reads, 211399 OS file writes, 115575 OS fsyncs
9.73 reads/s, 16384 avg bytes/read, 17.07 writes/s, 8.80 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 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)
19.60 hash searches/s, 44.80 non-hash searches/s
---
LOG
---
Log sequence number 78326939
Log flushed up to   78326919
Pages flushed up to 78325438
Last checkpoint at  78319189
0 pending log flushes, 0 pending chkp writes
59360 log i/o's done, 4.33 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 1317104
Buffer pool size   1003
Free buffers       738
Database pages     257
Old database pages 0
Modified db pages  3
Percent of dirty pages(LRU & free pages): 0.301
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 125, not young 5377
0.00 youngs/s, 0.00 non-youngs/s
Pages read 103851, created 1966, written 128671
9.73 reads/s, 0.33 creates/s, 10.87 writes/s
Buffer pool hit rate 948 / 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[881]:cur[5], 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=3972, Main thread ID=5612, state: sleeping
Number of rows inserted 596, updated 35113, deleted 573, read 978379
0.00 inserts/s, 3.07 updates/s, 0.00 deletes/s, 71.20 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 308800
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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