Mysql8.0--性能测试对比（sysbench for MGR单主/MGR多主/MHA/Mysql单机）
环境说明：
VMware虚拟机，CentOS Linux release 7.3，所有数据库的buffer_pool都设置为750M，仅限于OLTP事务测试，所有虚拟机节点在同一台物理机上；
MGR单主：mysql 8.0.11，三个节点；
MGR多主：mysql 8.0.11，三个节点；
MHA（开半同步复制）:mysql 5.7.19，三个节点；
Mysql单机：mysql 5.7.19，单个节点。
一、数据库准备
create user sbtest@'%' identified by 'sbtest';
grant all on *.* to sbtest@'%'；
create database sbtest；
二、sysbench配置：
安装依赖、解压、编译等（系统可能自带其他版本sysbench，yum -y remove sysbench 一概卸载了）
yum -y install automake*
yum -y install libtool*
unzip sysbench-0.4.zip
cd sysbench-0.4
./autogen.sh
./configure
make
make install
三、数据准备与测试流程：
1、准备：（每组测试都要准备，修改IP即可）
测试时间与数据量可以修改max-time参数（单位为秒）、table-size等参数调整；
sysbench --report-interval=1 --num-threads=4 --max-time=600 --test=oltp --mysql-user='sbtest' --mysql-password='sbtest' --oltp-table-size=20000 --mysql-host=192.168.1.11 --mysql-port=3306 --max-requests=10000000 --init-rng=on prepare
2、测试：
所有的测试直接在本地执行（MGR单主模式和MHA是在主库所在节点，MGR多主模式则是任一节点）；
sysbench --report-interval=1 --num-threads=4 --max-time=600 --test=oltp --mysql-user='sbtest' --mysql-password='sbtest' --oltp-table-size=20000 --mysql-host=192.168.1.11 --mysql-port=3306 --max-requests=10000000 --init-rng=on run
四、测试结果
1、MHA（Mysql5.7半同步）的sysbench测试结果：
OLTP test statistics:
queries performed:
read: 1779806
write: 508512
other: 254256
total: 2542574
transactions: 127127 (211.88 per sec.)
deadlocks: 2 (0.00 per sec.)
read/write requests: 2288318 (3813.82 per sec.)
other operations: 254256 (423.76 per sec.)
General statistics:
total time: 600.0069s
total number of events: 127127
total time taken by event execution: 2399.0217
response time:
min: 3.65ms
avg: 18.87ms
max: 1643.26ms
approx. 95 percentile: 22.18ms
Threads fairness:
events (avg/stddev): 31781.7500/26.32
execution time (avg/stddev): 599.7554/0.00
*****************************************************************************
2、MGR(Mysql8.0)多主测试如下：
OLTP test statistics:
queries performed:
read: 1035734
write: 295922
other: 147961
total: 1479617
transactions: 73980 (123.20 per sec.)
deadlocks: 1 (0.00 per sec.)
read/write requests: 1331656 (2217.71 per sec.)
other operations: 147961 (246.41 per sec.)
General statistics:
total time: 600.4637s
total number of events: 73980
total time taken by event execution: 2401.0029
response time:
min: 5.30ms
avg: 32.45ms
max: 3138.66ms
approx. 95 percentile: 55.07ms
Threads fairness:
events (avg/stddev): 18495.0000/1307.88
execution time (avg/stddev): 600.2507/0.10
***********************************************************************************
3、MGR(Mysql8.0)单主测试如下：
OLTP test statistics:
queries performed:
read: 1173480
write: 335277
other: 167638
total: 1676395
transactions: 83818 (139.69 per sec.)
deadlocks: 2 (0.00 per sec.)
read/write requests: 1508757 (2514.54 per sec.)
other operations: 167638 (279.39 per sec.)
General statistics:
total time: 600.0133s
total number of events: 83818
total time taken by event execution: 2399.3494
response time:
min: 4.64ms
avg: 28.63ms
max: 1739.72ms
approx. 95 percentile: 42.27ms
Threads fairness:
events (avg/stddev): 20954.5000/80.57
execution time (avg/stddev): 599.8373/0.00
************************************************************************************
4、MGR(Mysql5.7)单机测试如下：
OLTP test statistics:
queries performed:
read: 2351874
write: 671950
other: 335972
total: 3359796
transactions: 167981 (279.97 per sec.)
deadlocks: 10 (0.02 per sec.)
read/write requests: 3023824 (5039.67 per sec.)
other operations: 335972 (559.95 per sec.)
General statistics:
total time: 600.0046s
total number of events: 167981
total time taken by event execution: 2398.9756
response time:
min: 3.41ms
avg: 14.28ms
max: 662.92ms
approx. 95 percentile: 19.02ms
Threads fairness:
events (avg/stddev): 41995.2500/75.64
execution time (avg/stddev): 599.7439/0.00
***************************************************************************************
粗浅的测试结论：MHA>MGR单主>MGR多主
mysql（mysql 5.7）单机：280TPS（作为比较基准）
MHA(mysql5.7)：212TPS
MGR(Mysql8.0)单主：140TPS
MGR(Mysql8.0)多主：123TPS