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sysbench test show that 8.0.21 is faster than 8.0.23
Posted by: Liu Jack
Date: April 09, 2021 02:12AM

The sysbench (1.0.20) test command was

sysbench --test=oltp_read_write --tables=10 --table-size=1000000 --report-interval=10 --time=3600 --threads=50 --db-driver=mysql --mysql-socket=/tmp/mysql.sock --mysql-user=root --mysql-password='xxx' --mysql-db=sbtest run

============= 8.0.21 test result =============

SQL statistics:
queries performed:
read: 15339058
write: 4382588
other: 2191294
total: 21912940
transactions: 1095647 (304.28 per sec.)
queries: 21912940 (6085.57 per sec.)
ignored errors: 0 (0.00 per sec.)
reconnects: 0 (0.00 per sec.)

General statistics:
total time: 3600.8045s
total number of events: 1095647

Latency (ms):
min: 2.74
avg: 164.30
max: 5033.06
95th percentile: 707.07
sum: 180014353.79

Threads fairness:
events (avg/stddev): 21912.9400/80.08
execution time (avg/stddev): 3600.2871/0.22

============= 8.0.23 test reuslt ================

SQL statistics:
queries performed:
read: 2969064
write: 848304
other: 424152
total: 4241520
transactions: 212076 (58.89 per sec.)
queries: 4241520 (1177.79 per sec.)
ignored errors: 0 (0.00 per sec.)
reconnects: 0 (0.00 per sec.)

General statistics:
total time: 3601.2587s
total number of events: 212076

Latency (ms):
min: 3.57
avg: 848.89
max: 6098.82
95th percentile: 1973.38
sum: 180029441.14

Threads fairness:
events (avg/stddev): 4241.5200/32.35
execution time (avg/stddev): 3600.5888/0.34


Both tests are performed on the same machine.
Are there any performance issue with 8.0.23?

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sysbench test show that 8.0.21 is faster than 8.0.23
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