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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2026-02-06 23:39:59 0x4838 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 52 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 7522 srv_active, 0 srv_shutdown, 20648 srv_idle
srv_master_thread log flush and writes: 28170
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 8504
OS WAIT ARRAY INFO: signal count 7279
RW-shared spins 4779, rounds 120471, OS waits 3561
RW-excl spins 400, rounds 8463, OS waits 269
RW-sx spins 2, rounds 60, OS waits 2
Spin rounds per wait: 25.21 RW-shared, 21.16 RW-excl, 30.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 81790
Purge done for trx's n:o < 81790 undo n:o < 0 state: running but idle
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283436765733224, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283436765729056, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283436765724888, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283436765720720, 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
24735 OS file reads, 81755 OS file writes, 47346 OS fsyncs
0.56 reads/s, 16384 avg bytes/read, 1.13 writes/s, 0.73 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 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)
1.65 hash searches/s, 3.46 non-hash searches/s
---
LOG
---
Log sequence number 27559402
Log flushed up to   27559402
Pages flushed up to 27559402
Last checkpoint at  27559393
0 pending log flushes, 0 pending chkp writes
25044 log i/o's done, 0.46 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 92648
Buffer pool size   1003
Free buffers       742
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 25, not young 7374
0.00 youngs/s, 0.00 non-youngs/s
Pages read 24695, created 591, written 48889
0.56 reads/s, 0.02 creates/s, 0.58 writes/s
Buffer pool hit rate 954 / 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[59]:cur[0], 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=15748, Main thread ID=11792, state: sleeping
Number of rows inserted 57, updated 10940, deleted 0, read 2080467
0.00 inserts/s, 0.19 updates/s, 0.00 deletes/s, 1.67 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 10063
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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