Storage engines
InnoDB
Supports transactions, row-level locking, and foreign keys
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متغییرها
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Buffer Pool
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InnoDB حالت
]
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2024-09-19 18:52:25 0x7f4dec692700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 18 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 143 srv_active, 0 srv_shutdown, 239 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 447
OS WAIT ARRAY INFO: signal count 441
RW-shared spins 90, rounds 176, OS waits 86
RW-excl spins 18, rounds 410, OS waits 12
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.96 RW-shared, 22.78 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 15435
Purge done for trx's n:o < 15435 undo n:o < 0 state: running but idle
History list length 1
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421448359344744, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421448359343872, 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
1430 OS file reads, 17747 OS file writes, 8758 OS fsyncs
0.39 reads/s, 16384 avg bytes/read, 11.05 writes/s, 2.67 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 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 3 buffer(s)
Hash table size 34679, node heap has 8 buffer(s)
8955.84 hash searches/s, 1732.68 non-hash searches/s
---
LOG
---
Log sequence number 56936191
Log buffer assigned up to 56936191
Log buffer completed up to 56936191
Log written up to 56936191
Log flushed up to 56936191
Added dirty pages up to 56935905
Pages flushed up to 56935905
Last checkpoint at 56935905
12945 log i/o's done, 2.12 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 2231699
Buffer pool size 8192
Free buffers 5836
Database pages 2336
Old database pages 842
Modified db pages 1
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 2404, not young 3556
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1301, created 1056, written 4149
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 2 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 2336, unzip_LRU len: 0
I/O sum[158]:cur[1], 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=368, Main thread ID=139972943202048 , state=sleeping
Number of rows inserted 12062, updated 4400, deleted 370, read 983658
225.54 inserts/s, 1.06 updates/s, 0.00 deletes/s, 13610.08 reads/s
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END OF INNODB MONITOR OUTPUT
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