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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2026-08-15 20:02:30 0x3bb4 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 28 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 7267 srv_active, 0 srv_shutdown, 125437 srv_idle
srv_master_thread log flush and writes: 132704
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 3821
OS WAIT ARRAY INFO: signal count 3754
RW-shared spins 2069, rounds 60499, OS waits 2008
RW-excl spins 493, rounds 7939, OS waits 235
RW-sx spins 2, rounds 60, OS waits 2
Spin rounds per wait: 29.24 RW-shared, 16.10 RW-excl, 30.00 RW-sx
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TRANSACTIONS
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Trx id counter 28965
Purge done for trx's n:o < 28965 undo n:o < 0 state: running
History list length 9
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283766097510688, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283766097506520, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283766097502352, 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
24914 OS file reads, 87570 OS file writes, 47506 OS fsyncs
0.25 reads/s, 16384 avg bytes/read, 2.14 writes/s, 1.07 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 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)
1.43 hash searches/s, 2.61 non-hash searches/s
---
LOG
---
Log sequence number 15825121
Log flushed up to   15824709
Pages flushed up to 15824709
Last checkpoint at  15824700
0 pending log flushes, 0 pending chkp writes
25049 log i/o's done, 0.64 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 177784
Buffer pool size   1003
Free buffers       741
Database pages     256
Old database pages 0
Modified db pages  18
Percent of dirty pages(LRU & free pages): 1.804
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 24840, created 581, written 53745
0.25 reads/s, 0.00 creates/s, 1.32 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: 256, unzip_LRU len: 0
I/O sum[82]: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=4404, Main thread ID=4904, state: sleeping
Number of rows inserted 75, updated 13394, deleted 0, read 288818
0.00 inserts/s, 0.18 updates/s, 0.00 deletes/s, 1.29 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 33167
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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