Storage engines

InnoDB

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

[ Variables | Buffer Pool | InnoDB Status ]

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2026-04-16 22:21:32 0x2614 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 16 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 0 srv_active, 0 srv_shutdown, 37179 srv_idle
srv_master_thread log flush and writes: 37179
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SEMAPHORES
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TRANSACTIONS
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Trx id counter 368266
Purge done for trx's n:o < 368266 undo n:o < 0 state: running but idle
History list length 0
LIST OF TRANSACTIONS FOR EACH SESSION:
---TRANSACTION (0000020B9636A5C0), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
---TRANSACTION (0000020B96369B40), not started
0 lock struct(s), heap size 1128, 0 row lock(s)
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FILE I/O
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Pending flushes (fsync): 0
103541 OS file reads, 91370 OS file writes, 50154 OS fsyncs
2.37 reads/s, 11641 avg bytes/read, 9.12 writes/s, 4.37 fsyncs/s
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LOG
---
Log sequence number 243010583
Log flushed up to   243010351
Pages flushed up to 243006253
Last checkpoint at  242897641
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BUFFER POOL AND MEMORY
----------------------
Total large memory allocated 33554432
Dictionary memory allocated 1330648
Buffer pool size   1008
Free buffers       832
Database pages     166
Old database pages 0
Modified db pages  9
Percent of dirty pages(LRU & free pages): 0.901
Max dirty pages percent: 90.000
Pending reads 0
Pending writes: LRU 0, flush list 0
Pages made young 0, not young 0
0.00 youngs/s, 0.00 non-youngs/s
Pages read 102544, created 20044, written 90386
2.37 reads/s, 0.19 creates/s, 9.00 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: 166, unzip_LRU len: 16
I/O sum[643]:cur[2], unzip sum[106]: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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