Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ متغيرات | Buffer Pool | وضع InnoDB ]

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2024-12-20 19:55:47 0x7f0f100f5700 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: 35 srv_active, 0 srv_shutdown, 564 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 463
OS WAIT ARRAY INFO: signal count 448
RW-shared spins 58, rounds 103, OS waits 45
RW-excl spins 191, rounds 1489, OS waits 26
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.78 RW-shared, 7.80 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10408
Purge done for trx's n:o < 10408 undo n:o < 0 state: running but idle
History list length 10
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421177801534056, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421177801533184, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
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FILE I/O
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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
1534 OS file reads, 3305 OS file writes, 978 OS fsyncs
1.24 reads/s, 14677 avg bytes/read, 34.02 writes/s, 8.74 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 1 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 4 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
652.36 hash searches/s, 382.52 non-hash searches/s
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LOG
---
Log sequence number          52338411
Log buffer assigned up to    52338411
Log buffer completed up to   52338411
Log written up to            52338411
Log flushed up to            52338411
Added dirty pages up to      52338411
Pages flushed up to          52338411
Last checkpoint at           52338411
1612 log i/o's done, 21.06 log i/o's/second
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BUFFER POOL AND MEMORY
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Total large memory allocated 137363456
Dictionary memory allocated 462754
Buffer pool size   8192
Free buffers       6589
Database pages     1582
Old database pages 563
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 410, not young 660
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1391, created 197, written 1550
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 1 / 1000 not 1 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1582, unzip_LRU len: 0
I/O sum[665]: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=365, Main thread ID=139702314137344 , state=sleeping
Number of rows inserted 329, updated 1959, deleted 1684, read 965579
0.98 inserts/s, 27.82 updates/s, 31.47 deletes/s, 1427.19 reads/s
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END OF INNODB MONITOR OUTPUT
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