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 21:29:56 0x2f7c INNODB MONITOR OUTPUT
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Per second averages calculated from the last 29 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 6984 srv_active, 0 srv_shutdown, 452079 srv_idle
srv_master_thread log flush and writes: 459063
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 59463
OS WAIT ARRAY INFO: signal count 15074
RW-shared spins 5422, rounds 157591, OS waits 4546
RW-excl spins 1278, rounds 14061, OS waits 148
RW-sx spins 3, rounds 60, OS waits 2
Spin rounds per wait: 29.07 RW-shared, 11.00 RW-excl, 20.00 RW-sx
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TRANSACTIONS
------------
Trx id counter 22505
Purge done for trx's n:o < 22505 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 282935494570632, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282935494566464, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282935494562296, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282935494549792, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282935494558128, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 282935494553960, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---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
23517 OS file reads, 72888 OS file writes, 48027 OS fsyncs
1.76 reads/s, 16384 avg bytes/read, 6.86 writes/s, 4.17 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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)
13.79 hash searches/s, 26.03 non-hash searches/s
---
LOG
---
Log sequence number 32497079
Log flushed up to   32497079
Pages flushed up to 32497079
Last checkpoint at  32495345
0 pending log flushes, 0 pending chkp writes
24889 log i/o's done, 2.03 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 257912
Buffer pool size   1003
Free buffers       735
Database pages     260
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 31, not young 1878
0.00 youngs/s, 0.00 non-youngs/s
Pages read 23441, created 671, written 40116
1.76 reads/s, 0.00 creates/s, 4.10 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: 260, unzip_LRU len: 0
I/O sum[298]:cur[20], unzip sum[0]:cur[0]
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ROW OPERATIONS
--------------
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 2392, updated 7609, deleted 29, read 183200
0.00 inserts/s, 0.76 updates/s, 0.00 deletes/s, 58.48 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 27200
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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