Mecanismos de armazenamento

InnoDB

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

[ Variáveis | Pool de buffer | Status do InnoDB ]

=====================================
2025-06-08 07:21:56 0x1528 INNODB MONITOR OUTPUT
=====================================
Per second averages calculated from the last 1 seconds
-----------------
BACKGROUND THREAD
-----------------
srv_master_thread loops: 46724 srv_active, 0 srv_shutdown, 75224 srv_idle
srv_master_thread log flush and writes: 121948
----------
SEMAPHORES
----------
OS WAIT ARRAY INFO: reservation count 1594432
--Thread 4732 has waited at srv0srv.cc line 900 for 0.00 seconds the semaphore:
Mutex at 00007FF66B7F0C50, Mutex SRV_SYS created srv0srv.cc:1005, lock var 0

--Thread 3572 has waited at srv0srv.cc line 900 for 0.00 seconds the semaphore:
Mutex at 00007FF66B7F0C50, Mutex SRV_SYS created srv0srv.cc:1005, lock var 0

OS WAIT ARRAY INFO: signal count 453927
RW-shared spins 49192, rounds 1475143, OS waits 4699
RW-excl spins 543, rounds 16899, OS waits 146
RW-sx spins 1, rounds 30, OS waits 0
Spin rounds per wait: 29.99 RW-shared, 31.12 RW-excl, 30.00 RW-sx
------------
TRANSACTIONS
------------
Trx id counter 178440
Purge done for trx's n:o < 178440 undo n:o < 0 state: running
History list length 2
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION 283046290178264, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290190768, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290186600, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290174096, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION 283046290182432, not started
0 lock struct(s), heap size 1128, 0 row lock(s)
--------
FILE I/O
--------
I/O thread 0 state: native aio handle (insert buffer thread)
I/O thread 1 state: native aio handle (log thread)
I/O thread 2 state: native aio handle (read thread)
I/O thread 3 state: native aio handle (read thread)
I/O thread 4 state: native aio handle (read thread)
I/O thread 5 state: native aio handle (read thread)
I/O thread 6 state: native aio handle (write thread)
I/O thread 7 state: native aio handle (write thread)
I/O thread 8 state: native aio handle (write thread)
I/O thread 9 state: native aio handle (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
86304 OS file reads, 544977 OS file writes, 350214 OS fsyncs
1.00 reads/s, 16384 avg bytes/read, 5.99 writes/s, 5.00 fsyncs/s
-------------------------------------
INSERT BUFFER AND ADAPTIVE HASH INDEX
-------------------------------------
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 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 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)
7.99 hash searches/s, 54.95 non-hash searches/s
---
LOG
---
Log sequence number 88552952
Log flushed up to   88552952
Pages flushed up to 88552952
Last checkpoint at  88551510
0 pending log flushes, 0 pending chkp writes
201173 log i/o's done, 2.00 log i/o's/second
----------------------
BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 135216
Buffer pool size   1003
Free buffers       744
Database pages     256
Old database pages 0
Modified db pages  0
Percent of dirty pages(LRU & free pages): 0.000
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 86247, created 2708, written 294816
1.00 reads/s, 0.00 creates/s, 3.00 writes/s
Buffer pool hit rate 987 / 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: 256, unzip_LRU len: 0
I/O sum[32]:cur[3], unzip sum[0]:cur[0]
--------------
ROW OPERATIONS
--------------
0 queries inside InnoDB, 0 queries in queue
0 read views open inside InnoDB
Process ID=5172, Main thread ID=4692, state: sleeping
Number of rows inserted 109, updated 58449, deleted 3, read 1643345
0.00 inserts/s, 1.00 updates/s, 0.00 deletes/s, 5.99 reads/s
Number of system rows inserted 0, updated 0, deleted 0, read 38429
0.00 inserts/s, 0.00 updates/s, 0.00 deletes/s, 0.00 reads/s
----------------------------
END OF INNODB MONITOR OUTPUT
============================