Storage engines

InnoDB

Supports transactions, row-level locking, and foreign keys

[ متغيرات | Buffer Pool | وضع InnoDB ]

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2025-09-17 02:08:49 0x7f502c4f8700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 1 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 26 srv_active, 0 srv_shutdown, 456 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 57
OS WAIT ARRAY INFO: signal count 55
RW-shared spins 0, rounds 0, OS waits 0
RW-excl spins 0, rounds 0, OS waits 0
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 0.00 RW-shared, 0.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 9910
Purge done for trx's n:o < 9909 undo n:o < 0 state: running but idle
History list length 22
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421457947187816, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421457947186944, 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
1440 OS file reads, 776 OS file writes, 299 OS fsyncs
9.99 reads/s, 13312 avg bytes/read, 40.96 writes/s, 9.99 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 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 6 buffer(s)
1588.41 hash searches/s, 924.08 non-hash searches/s
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LOG
---
Log sequence number          50984707
Log buffer assigned up to    50984707
Log buffer completed up to   50984697
Log written up to            50984697
Log flushed up to            50984697
Added dirty pages up to      50984697
Pages flushed up to          50982939
Last checkpoint at           50982939
193 log i/o's done, 5.00 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 650812
Buffer pool size   8192
Free buffers       6743
Database pages     1436
Old database pages 549
Modified db pages  8
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 326, not young 740
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1293, created 149, written 494
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 999 / 1000, young-making rate 0 / 1000 not 1 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1436, unzip_LRU len: 0
I/O sum[84]:cur[138], 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=364, Main thread ID=139982460106496 , state=sleeping
Number of rows inserted 106, updated 375, deleted 0, read 120237
0.00 inserts/s, 2.00 updates/s, 0.00 deletes/s, 3491.51 reads/s
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END OF INNODB MONITOR OUTPUT
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