Storage engines

InnoDB

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

[ Variables | Buffer Pool | InnoDB Status ]

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2026-04-26 10:41:27 0x6250 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 12 seconds
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BACKGROUND THREAD
-----------------
srv_master_thread loops: 4 srv_active, 5275540 srv_idle
srv_master_thread log flush and writes: 5275544
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SEMAPHORES
----------
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TRANSACTIONS
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Trx id counter 2393517
Purge done for trx's n:o < 2393517 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION (0000026EFA904AC0), not started
0 lock struct(s), heap size 1120, 0 row lock(s)
---TRANSACTION (0000026EFA9035C0), not started
0 lock struct(s), heap size 1120, 0 row lock(s)
---TRANSACTION (0000026EFA905540), not started
0 lock struct(s), heap size 1120, 0 row lock(s)
---TRANSACTION (0000026EFA902B40), not started
0 lock struct(s), heap size 1120, 0 row lock(s)
---TRANSACTION (0000026EFA905FC0), not started
0 lock struct(s), heap size 1120, 0 row lock(s)
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FILE I/O
--------
Pending flushes (fsync): 0
184 OS file reads, 1284 OS file writes, 1432000 OS fsyncs
0.00 reads/s, 0 avg bytes/read, 0.00 writes/s, 0.67 fsyncs/s
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LOG
---
Log sequence number 394854741
Log flushed up to   394854741
Pages flushed up to 353649268
Last checkpoint at  353649268
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 1106247680
Dictionary memory allocated 7124304
Buffer pool size   64832
Free buffers       64370
Database pages     462
Old database pages 0
Modified db pages  212
Percent of dirty pages(LRU & free pages): 0.327
Max dirty pages percent: 90.000
Pending reads 0
Pending writes: LRU 0, flush list 0
Pages made young 128, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 169, created 470, written 1213
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: 462, unzip_LRU len: 0
I/O sum[0]:cur[0], unzip sum[0]:cur[0]
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ROW OPERATIONS
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0 read views open inside InnoDB
state: sleeping
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END OF INNODB MONITOR OUTPUT
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