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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2026-08-13 23:17:17 0x320 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 27 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 11289 srv_active, 0 srv_shutdown, 454137 srv_idle
srv_master_thread log flush and writes: 465426
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 114236
OS WAIT ARRAY INFO: signal count 23023
RW-shared spins 7757, rounds 227117, OS waits 6464
RW-excl spins 1367, rounds 16091, OS waits 178
RW-sx spins 3, rounds 60, OS waits 2
Spin rounds per wait: 29.28 RW-shared, 11.77 RW-excl, 20.00 RW-sx
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TRANSACTIONS
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Trx id counter 35877
Purge done for trx's n:o < 35877 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 282935494545624, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282935494541456, 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
42649 OS file reads, 122429 OS file writes, 77730 OS fsyncs
2.00 reads/s, 16384 avg bytes/read, 8.67 writes/s, 5.33 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 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)
6.22 hash searches/s, 9.15 non-hash searches/s
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LOG
---
Log sequence number 39744152
Log flushed up to   39743784
Pages flushed up to 39743784
Last checkpoint at  39742162
0 pending log flushes, 0 pending chkp writes
40288 log i/o's done, 2.48 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 257912
Buffer pool size   1003
Free buffers       729
Database pages     266
Old database pages 0
Modified db pages  16
Percent of dirty pages(LRU & free pages): 1.606
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 200, not young 2450
0.00 youngs/s, 0.00 non-youngs/s
Pages read 42573, created 920, written 69256
2.47 reads/s, 0.07 creates/s, 4.67 writes/s
Buffer pool hit rate 961 / 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: 266, unzip_LRU len: 0
I/O sum[333]:cur[17], 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=3652, Main thread ID=5408, state: sleeping
Number of rows inserted 2408, updated 14247, deleted 29, read 451707
0.00 inserts/s, 1.04 updates/s, 0.00 deletes/s, 69.63 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 45981
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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