Motori di memorizzazione

InnoDB

Supports transactions, row-level locking, and foreign keys

[ Variabili | Buffer Pool | Stato InnoDB ]

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2024-12-20 18:22:03 0x7f285fb0a700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 10 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 32 srv_active, 0 srv_shutdown, 343 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 453
OS WAIT ARRAY INFO: signal count 434
RW-shared spins 64, rounds 111, OS waits 47
RW-excl spins 279, rounds 1876, OS waits 27
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 1.73 RW-shared, 6.72 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 10194
Purge done for trx's n:o < 10192 undo n:o < 0 state: running but idle
History list length 50
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421286940769744, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421286940768872, not started
0 lock struct(s), heap size 1136, 0 row lock(s)
---TRANSACTION 421286940768000, 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
1327 OS file reads, 2595 OS file writes, 788 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.00 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 2 buffer(s)
Hash table size 34679, node heap has 2 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 3 buffer(s)
Hash table size 34679, node heap has 5 buffer(s)
900.51 hash searches/s, 199.68 non-hash searches/s
---
LOG
---
Log sequence number          52160946
Log buffer assigned up to    52160946
Log buffer completed up to   52160946
Log written up to            52160946
Log flushed up to            52160946
Added dirty pages up to      52160946
Pages flushed up to          52160946
Last checkpoint at           52160946
1328 log i/o's done, 0.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 137363456
Dictionary memory allocated 509293
Buffer pool size   8192
Free buffers       6789
Database pages     1380
Old database pages 490
Modified db pages  0
Pending reads      0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 108, not young 130
0.00 youngs/s, 0.00 non-youngs/s
Pages read 1200, created 204, written 1134
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: 1380, unzip_LRU len: 0
I/O sum[1]: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=370, Main thread ID=139811455440640 , state=sleeping
Number of rows inserted 623, updated 1845, deleted 1531, read 284964
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 1177.18 reads/s
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END OF INNODB MONITOR OUTPUT
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