Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ متغيرات | Buffer Pool | وضع InnoDB ]

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2024-12-20 23:47:30 0x7fda380aa700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 43 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 8 srv_active, 0 srv_shutdown, 95 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 22
OS WAIT ARRAY INFO: signal count 21
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 1, rounds 30, OS waits 1
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9813
Purge done for trx's n:o < 9813 undo n:o < 0 state: running but idle
History list length 75
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 422050354678376, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 422050354677504, 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
1361 OS file reads, 355 OS file writes, 116 OS fsyncs
0.02 reads/s, 16384 avg bytes/read, 0.49 writes/s, 0.37 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 0 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 2 buffer(s)
Hash table size 34679, node heap has 4 buffer(s)
476.78 hash searches/s, 111.93 non-hash searches/s
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LOG
---
Log sequence number          50958634
Log buffer assigned up to    50958634
Log buffer completed up to   50958634
Log written up to            50958634
Log flushed up to            50958634
Added dirty pages up to      50958634
Pages flushed up to          50958634
Last checkpoint at           50958634
79 log i/o's done, 0.17 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 552630
Buffer pool size   8192
Free buffers       6798
Database pages     1382
Old database pages 499
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 120, not young 637
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1240, created 145, written 228
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: 1382, 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=368, Main thread ID=140574869092096 , state=sleeping
Number of rows inserted 92, updated 342, deleted 0, read 204387
0.00 inserts/s, 0.07 updates/s, 0.00 deletes/s, 1536.69 reads/s
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END OF INNODB MONITOR OUTPUT
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