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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2024-12-20 23:29:13 0x7f7fc80ee700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 11 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 52 srv_active, 0 srv_shutdown, 752 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 236
OS WAIT ARRAY INFO: signal count 224
RW-shared spins 17, rounds 33, OS waits 16
RW-excl spins 21, rounds 520, OS waits 14
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.94 RW-shared, 24.76 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10596
Purge done for trx's n:o < 10595 undo n:o < 0 state: running but idle
History list length 51
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421661932063336, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421661932062464, 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
1326 OS file reads, 3770 OS file writes, 1481 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 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 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 1 buffer(s)
Hash table size 34679, node heap has 0 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
436.69 hash searches/s, 145.44 non-hash searches/s
---
LOG
---
Log sequence number 52352857
Log buffer assigned up to 52352857
Log buffer completed up to 52352857
Log written up to 52352857
Log flushed up to 52352857
Added dirty pages up to 52352857
Pages flushed up to 52352857
Last checkpoint at 52352857
1825 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 792520
Buffer pool size 8192
Free buffers 6602
Database pages 1573
Old database pages 560
Modified db pages 0
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 89, not young 62
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1221, created 355, written 1682
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: 1573, unzip_LRU len: 0
I/O sum[11]: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=375, Main thread ID=140186445874944 , state=sleeping
Number of rows inserted 1406, updated 1471, deleted 425, read 1227683
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1122.26 reads/s
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END OF INNODB MONITOR OUTPUT
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