Механизмы хранилища

InnoDB

Supports transactions, row-level locking, foreign keys and encryption for tables

[ Переменные | Буферный пул | Состояние InnoDB ]

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2025-03-15 07:46:43 0x7f4cb0a5a700 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 5 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 100445 srv_active, 0 srv_shutdown, 465513 srv_idle
srv_master_thread log flush and writes: 565862
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 214229
OS WAIT ARRAY INFO: signal count 185177
RW-shared spins 144462, rounds 4333408, OS waits 144153
RW-excl spins 3, rounds 90, OS waits 2
RW-sx spins 0, rounds 0, OS waits 0
Spin rounds per wait: 30.00 RW-shared, 30.00 RW-excl, 0.00 RW-sx
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TRANSACTIONS
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Trx id counter 205221
Purge done for trx's n:o < 205220 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 421443133288712, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 421443133284496, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
--------
I/O thread 0 state: waiting for i/o request (insert buffer thread)
I/O thread 1 state: waiting for i/o request (log thread)
I/O thread 2 state: waiting for i/o request (read thread)
I/O thread 3 state: waiting for i/o request (read thread)
I/O thread 4 state: waiting for i/o request (read thread)
I/O thread 5 state: waiting for i/o request (read thread)
I/O thread 6 state: waiting for i/o request (write thread)
I/O thread 7 state: waiting for i/o request (write thread)
I/O thread 8 state: waiting for i/o request (write thread)
I/O thread 9 state: waiting for i/o request (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
73219 OS file reads, 1163681 OS file writes, 876030 OS fsyncs
0.60 reads/s, 16384 avg bytes/read, 7.20 writes/s, 5.20 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 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 0 buffer(s)
Hash table size 4441, node heap has 1 buffer(s)
14.00 hash searches/s, 27.59 non-hash searches/s
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LOG
---
Log sequence number 139800036
Log flushed up to   139799646
Pages flushed up to 139797578
Last checkpoint at  139793572
0 pending log flushes, 0 pending chkp writes
516683 log i/o's done, 3.00 log i/o's/second
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 75640
Buffer pool size   1003
Free buffers       743
Database pages     257
Old database pages 0
Modified db pages  17
Percent of dirty pages(LRU & free pages): 1.698
Max dirty pages percent: 75.000
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 73185, created 3798, written 517194
0.60 reads/s, 0.00 creates/s, 3.40 writes/s
Buffer pool hit rate 994 / 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: 257, unzip_LRU len: 0
I/O sum[34]: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=18708, Main thread ID=139967430891264, state: sleeping
Number of rows inserted 2, updated 101008, deleted 0, read 2255936
0.00 inserts/s, 1.40 updates/s, 0.00 deletes/s, 11.80 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 1125
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
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END OF INNODB MONITOR OUTPUT
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