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| InnoDB |      |
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140820 12:35:23 INNODB MONITOR OUTPUT
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Per second averages calculated from the last 4 seconds
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BACKGROUND THREAD
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srv_master_thread loops: 468931 1_second, 467895 sleeps, 46829 10_second, 1450 background, 1448 flush
srv_master_thread log flush and writes: 473511
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SEMAPHORES
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OS WAIT ARRAY INFO: reservation count 4648946, signal count 10648144
Mutex spin waits 611035759, rounds 585439775, OS waits 714711
RW-shared spins 4741919, rounds 75776816, OS waits 2562167
RW-excl spins 1415878, rounds 35271478, OS waits 986802
Spin rounds per wait: 0.96 mutex, 15.98 RW-shared, 24.91 RW-excl

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FILE I/O
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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, 0] , aio writes: 0 [0, 0, 0, 0] ,
 ibuf aio reads: 0, log i/o's: 0, sync i/o's: 0
Pending flushes (fsync) log: 0; buffer pool: 0
41135151 OS file reads, 40474318 OS file writes, 31116979 OS fsyncs
93.23 reads/s, 16384 avg bytes/read, 76.23 writes/s, 57.49 fsyncs/s
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INSERT BUFFER AND ADAPTIVE HASH INDEX
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Ibuf: size 1, free list len 27, seg size 29, 185765 merges
merged operations:
 insert 22609, delete mark 256188, delete 18040
discarded operations:
 insert 0, delete mark 0, delete 0
Hash table size 50696537, node heap has 114016 buffer(s)
10871.03 hash searches/s, 9863.03 non-hash searches/s
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LOG
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Log sequence number 1641865965383
Log flushed up to   1641865965383
Last checkpoint at  1641677671112
0 pending log writes, 0 pending chkp writes
29834824 log i/o's done, 53.74 log i/o's/second
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BUFFER POOL AND MEMORY
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Total memory allocated 26217103360; in additional pool allocated 0
Dictionary memory allocated 1212141
Buffer pool size   1563519
Free buffers       0
Database pages     1449503
Old database pages 535050
Modified db pages  45707
Pending reads 0
Pending writes: LRU 0, flush list 0, single page 0
Pages made young 147515748, not young 0
360.91 youngs/s, 0.00 non-youngs/s
Pages read 41131772, created 253682, written 10230701
93.23 reads/s, 0.00 creates/s, 21.49 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: 1449503, unzip_LRU len: 0
I/O sum[8353]:cur[161], unzip sum[0]:cur[0]
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ROW OPERATIONS
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4 queries inside InnoDB, 0 queries in queue
5 read views open inside InnoDB
Main thread process no. 20526, id 1111365952, state: sleeping
Number of rows inserted 5079840, updated 8383577, deleted 3216848, read 306935598057
6.50 inserts/s, 19.50 updates/s, 2.75 deletes/s, 2057669.33 reads/s
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END OF INNODB MONITOR OUTPUT
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