Mecanismos de armazenamento
InnoDB
Supports transactions, row-level locking, and foreign keys
[
Variáveis
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Pool de buffer
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Estado do InnoDB
]
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2024-09-19 18:22:07 0x7f37f80da700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 18 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 179 srv_active, 0 srv_shutdown, 199 srv_idle
srv_master_thread log flush and writes: 0
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 1429
OS WAIT ARRAY INFO: signal count 1420
RW-shared spins 399, rounds 783, OS waits 383
RW-excl spins 257, rounds 1794, OS waits 27
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.96 RW-shared, 6.98 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 20622
Purge done for trx's n:o < 20621 undo n:o < 0 state: running but idle
History list length 3
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421353520220776, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421353520219904, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for completed aio requests (insert buffer thread)
I/O thread 1 state: waiting for completed aio requests (log thread)
I/O thread 2 state: waiting for completed aio requests (read thread)
I/O thread 3 state: waiting for completed aio requests (read thread)
I/O thread 4 state: waiting for completed aio requests (read thread)
I/O thread 5 state: waiting for completed aio requests (read thread)
I/O thread 6 state: waiting for completed aio requests (write thread)
I/O thread 7 state: waiting for completed aio requests (write thread)
I/O thread 8 state: waiting for completed aio requests (write thread)
I/O thread 9 state: waiting for completed aio requests (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
1461 OS file reads, 31564 OS file writes, 16312 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.06 writes/s, 0.00 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 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
877.62 hash searches/s, 155.88 non-hash searches/s
---
LOG
---
Log sequence number 63029272
Log buffer assigned up to 63029272
Log buffer completed up to 63029272
Log written up to 63029272
Log flushed up to 63029272
Added dirty pages up to 63029272
Pages flushed up to 63029272
Last checkpoint at 63029272
25454 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 2089391
Buffer pool size 8192
Free buffers 5255
Database pages 2912
Old database pages 1063
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 3374, not young 597
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1330, created 1606, written 5165
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 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: 2912, unzip_LRU len: 0
I/O sum[35]: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=363, Main thread ID=139878035826432 , state=sleeping
Number of rows inserted 14880, updated 7880, deleted 3494, read 693885
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 956.95 reads/s
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END OF INNODB MONITOR OUTPUT
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