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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2026-07-26 21:21:33 0x239c INNODB MONITOR OUTPUT
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Per second averages calculated from the last 63 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 2819 srv_active, 0 srv_shutdown, 192757 srv_idle
srv_master_thread log flush and writes: 195576
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 1414
OS WAIT ARRAY INFO: signal count 1592
RW-shared spins 8369, rounds 85174, OS waits 1017
RW-excl spins 1239, rounds 7287, OS waits 96
RW-sx spins 30, rounds 392, OS waits 11
Spin rounds per wait: 10.18 RW-shared, 5.88 RW-excl, 13.07 RW-sx
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TRANSACTIONS
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Trx id counter 164723
Purge done for trx's n:o < 164723 undo n:o < 0 state: running
History list length 4
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283040646906072, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283040646901904, 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
35007 OS file reads, 18319 OS file writes, 7368 OS fsyncs
8.71 reads/s, 16384 avg bytes/read, 20.13 writes/s, 7.98 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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Ibuf: size 1, free list len 96, seg size 98, 1146 merges
merged operations:
 insert 6026, delete mark 2619, delete 1632
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)
18.60 hash searches/s, 47.30 non-hash searches/s
---
LOG
---
Log sequence number 514805392
Log flushed up to   514805392
Pages flushed up to 514792593
Last checkpoint at  514790088
0 pending log flushes, 0 pending chkp writes
4507 log i/o's done, 5.38 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 1199416
Buffer pool size   1003
Free buffers       740
Database pages     255
Old database pages 0
Modified db pages  31
Percent of dirty pages(LRU & free pages): 3.112
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 470, not young 167211
0.00 youngs/s, 0.00 non-youngs/s
Pages read 34452, created 355, written 12751
8.71 reads/s, 0.16 creates/s, 13.52 writes/s
Buffer pool hit rate 955 / 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: 255, unzip_LRU len: 0
I/O sum[1219]:cur[7], 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=15100, Main thread ID=11300, state: sleeping
Number of rows inserted 2556, updated 3411, deleted 512, read 5130144
0.00 inserts/s, 4.29 updates/s, 0.00 deletes/s, 31.73 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 81413
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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