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InnoDB

Supports transactions, row-level locking, and foreign keys

[ 환경설정값 | 버퍼풀 | InnoDB 상태 ]

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2024-09-19 18:40:19 0x7fa874056700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 42 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 89 srv_active, 0 srv_shutdown, 467 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 332
OS WAIT ARRAY INFO: signal count 333
RW-shared spins 38, rounds 71, OS waits 33
RW-excl spins 36, rounds 478, OS waits 13
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.87 RW-shared, 13.28 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10771
Purge done for trx's n:o < 10771 undo n:o < 0 state: running but idle
History list length 14
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421836517014120, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421836517013248, 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
1504 OS file reads, 4746 OS file writes, 1838 OS fsyncs
0.12 reads/s, 16384 avg bytes/read, 19.50 writes/s, 7.74 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 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 2 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 7 buffer(s)
1554.75 hash searches/s, 517.18 non-hash searches/s
---
LOG
---
Log sequence number          52168580
Log buffer assigned up to    52168580
Log buffer completed up to   52168580
Log written up to            52168580
Log flushed up to            52168580
Added dirty pages up to      52168580
Pages flushed up to          52168580
Last checkpoint at           52168580
1918 log i/o's done, 9.95 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 975229
Buffer pool size   8192
Free buffers       6445
Database pages     1728
Old database pages 617
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 1396, not young 3397
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1373, created 400, written 2467
0.00 reads/s, 0.00 creates/s, 0.00 writes/s
Buffer pool hit rate 1000 / 1000, young-making rate 0 / 1000 not 3 / 1000
Pages read ahead 0.00/s, evicted without access 0.00/s, Random read ahead 0.00/s
LRU len: 1728, unzip_LRU len: 0
I/O sum[438]:cur[7], 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=140361100871424 , state=sleeping
Number of rows inserted 1730, updated 1192, deleted 496, read 1117356
5.95 inserts/s, 4.29 updates/s, 2.81 deletes/s, 1740.84 reads/s
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END OF INNODB MONITOR OUTPUT
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