MySQL5.7压测SSL加密性能影响

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1、压测环境

操作系统：MAC电脑上虚拟出两个Linux(centos 7)
配置：2c2g
数据库版本：MySQL 5.7
vm1:安装 MySQL 5.7 数据库
vm2:安装 sysbench
 
 

2、压测方法

https://help.aliyun.com/document_detail/53632.html
参考阿里云的帮忙文档，安装并优化操作系统参数，但虚拟机配置较低，
【sudo sh -c 'for x in /sys/class/net/eth0/queues/rx-*; do echo f>$x/rps_cpus; done'】这行参数我做了修改，只写了一个‘f’

2.1生成测试数据

sysbench --db-driver=mysql --mysql-host=172.16.1.10 --mysql-port=3306 --mysql-user=root --mysql-password=123456 --mysql-db=sbtest --table_size=25000 --tables=250 --events=0 --time=600  oltp_read_write prepare

2.2开始压测

8线程压测120秒

sysbench --db-driver=mysql  --mysql-host=172.16.1.10 --mysql-port=3306 --mysql-user=root --mysql-password=123456 --mysql-db=sbtest --table_size=25000 --tables=250 --events=0 --time=120   --threads=8 --percentile=95 --report-interval=1 oltp_read_write run

3、压测结果

3.1开启SSL加密结果

SQL statistics:
    queries performed:
        read:                            480130
        write:                           137180
        other:                           68590
        total:                           685900
    transactions:                        34295  (285.56 per sec.)
    queries:                             685900 (5711.24 per sec.)
    ignored errors:                      0      (0.00 per sec.)
    reconnects:                          0      (0.00 per sec.)

General statistics:
    total time:                          120.0947s
    total number of events:              34295

Latency (ms):
         min:                                   11.05
         avg:                                   27.99
         max:                                  152.91
         95th percentile:                       52.89
         sum:                               959995.88

Threads fairness:
    events (avg/stddev):           4286.8750/34.98
    execution time (avg/stddev):   119.9995/0.02

3.2关闭SSL加密结果

SQL statistics:
    queries performed:
        read:                            613130
        write:                           175180
        other:                           87590
        total:                           875900
    transactions:                        43795  (364.79 per sec.)
    queries:                             875900 (7295.80 per sec.)
    ignored errors:                      0      (0.00 per sec.)
    reconnects:                          0      (0.00 per sec.)

General statistics:
    total time:                          120.0540s
    total number of events:              43795

Latency (ms):
         min:                                    6.73
         avg:                                   21.92
         max:                                  134.68
         95th percentile:                       44.17
         sum:                               959923.22

Threads fairness:
    events (avg/stddev):           5474.3750/25.90
    execution time (avg/stddev):   119.9904/0.02

 
结论：

性能下降算法: 差值/关闭SSL

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