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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2026-05-21 18:12:20 0x250 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 27 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 8103 srv_active, 0 srv_shutdown, 599716 srv_idle
srv_master_thread log flush and writes: 607819
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 19652
OS WAIT ARRAY INFO: signal count 7956
RW-shared spins 3543, rounds 93446, OS waits 2862
RW-excl spins 369, rounds 4933, OS waits 124
RW-sx spins 11, rounds 338, OS waits 10
Spin rounds per wait: 26.37 RW-shared, 13.37 RW-excl, 30.73 RW-sx
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TRANSACTIONS
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Trx id counter 26853
Purge done for trx's n:o < 26853 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 284449893962016, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284449893957848, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 284449893953680, 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
20572 OS file reads, 91814 OS file writes, 52807 OS fsyncs
0.59 reads/s, 16384 avg bytes/read, 4.78 writes/s, 1.33 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 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 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
3.59 hash searches/s, 9.81 non-hash searches/s
---
LOG
---
Log sequence number 14386332
Log flushed up to   14385795
Pages flushed up to 14383674
Last checkpoint at  14369264
0 pending log flushes, 0 pending chkp writes
27208 log i/o's done, 0.81 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 97656
Buffer pool size   1003
Free buffers       740
Database pages     258
Old database pages 0
Modified db pages  25
Percent of dirty pages(LRU & free pages): 2.503
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 20530, created 613, written 55684
0.59 reads/s, 0.00 creates/s, 3.78 writes/s
Buffer pool hit rate 982 / 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: 258, unzip_LRU len: 0
I/O sum[309]:cur[2], 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=30796, Main thread ID=31056, state: sleeping
Number of rows inserted 770, updated 11830, deleted 340, read 856027
0.00 inserts/s, 0.52 updates/s, 0.00 deletes/s, 3.48 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 12586
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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