Mecanismos de armazenamento

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Variáveis | Pool de buffer | Estado do InnoDB ]

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2025-02-23 17:25:38 0x7f0848bff640 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 51 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 2530 srv_active, 0 srv_shutdown, 188323 srv_idle
srv_master_thread log flush and writes: 190772
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 26243
OS WAIT ARRAY INFO: signal count 23189
RW-shared spins 6052, rounds 171583, OS waits 5652
RW-excl spins 2185, rounds 5508, OS waits 43
RW-sx spins 66, rounds 607, OS waits 6
Spin rounds per wait: 28.35 RW-shared, 2.52 RW-excl, 9.20 RW-sx
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TRANSACTIONS
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Trx id counter 12364
Purge done for trx's n:o < 12364 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421148483948808, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421148483944592, 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: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
10084 OS file reads, 37416 OS file writes, 25148 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, 25 merges
merged operations:
 insert 335, delete mark 10, 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)
0.10 hash searches/s, 0.06 non-hash searches/s
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LOG
---
Log sequence number 30075891
Log flushed up to   30075891
Pages flushed up to 30075891
Last checkpoint at  30075882
0 pending log flushes, 0 pending chkp writes
16132 log i/o's done, 0.00 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 33554432
Dictionary memory allocated 80520
Buffer pool size   1002
Free buffers       738
Database pages     256
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 232, not young 5053
0.00 youngs/s, 0.00 non-youngs/s
Pages read 10050, created 2398, written 18162
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: 256, unzip_LRU len: 0
I/O sum[0]: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=17746, Main thread ID=139672244176448, state: sleeping
Number of rows inserted 8709, updated 2546, deleted 423, read 111188
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.10 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 4522
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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