MyCat 学习笔记 第十八篇 . mysql 5.5 、mysql 5.6 、mysql 5.7 简单比较 下

上篇写了 mysql 5.5 + mycat 压入600万条记录数据,通过mycat上传花了32分钟,差不多是直联的1倍时间。mycat 内存平均占用在 200 - 300M,峰值过400M,终生代对像基本中 18M,老年代未超过50M,基本还算稳定。由于本地环境有限,没有办法开更多的CPU和内存出来,不然到是想试验一下在 8C 32G的PC SERVER跑mycat的效能究竟如何。

这篇我们把数据降到 300 万笔,看下mysql 5.6的情况又是如何?

通过mycat上送数据时间控制在 1000 sec以内,也就是 17分钟,基本和5.5的情况一样。

31 19:32:16 finished records :2981200 failed:0 speed:3004.8844996260527
31 19:32:17 finished records :2984400 failed:0 speed:3005.080967216383
31 19:32:18 finished records :2988500 failed:0 speed:3006.1581731088413
31 19:32:19 finished records :2991400 failed:0 speed:3006.033370447338
31 19:32:20 finished records :2995300 failed:0 speed:3006.906659706467
31 19:32:21 finished records :2998500 failed:0 speed:3007.0761812689793
finishend:3000000 failed:0
used time total:998seconds
tps:3005.710850616171
直联mysql 5.6 数据库,基本已经到了 mycat 一半的时间。
31 19:49:29 finished records :2975800 failed:0 speed:5939.424180430118
31 19:49:30 finished records :2981600 failed:0 speed:5939.122796184269
31 19:49:31 finished records :2988000 failed:0 speed:5940.015386786846
31 19:49:32 finished records :2995000 failed:0 speed:5942.106620637661
finishend:3000000 failed:0
used time total:505seconds
tps:5939.41793704217
houdembp:bin houkai$ 

再来看下 mysql 5.7 环境下情况又是如何?

mycatmysql5.7上压入300万条记录,花了 943 sec。
31 20:26:46 finished records :2983600 failed:0 speed:3179.071573862056
31 20:26:47 finished records :2986500 failed:0 speed:3178.7677684762884
31 20:26:48 finished records :2990300 failed:0 speed:3179.404628493539
31 20:26:49 finished records :2993900 failed:0 speed:3179.8344604031536
31 20:26:50 finished records :2998400 failed:0 speed:3181.2216256017045
finishend:3000000 failed:0
used time total:943seconds
tps:3180.998833633761
直联mysql 5.7 环境,居然比5.6的时间更长,TPS更低 - - ;
31 20:46:46 finished records :2981200 failed:0 speed:5450.858713200944
31 20:46:47 finished records :2985900 failed:0 speed:5449.448557928337
31 20:46:48 finished records :2991000 failed:0 speed:5448.762323930833
31 20:46:49 finished records :2997100 failed:0 speed:5449.896988200467
finishend:3000000 failed:0
used time total:550seconds
tps:5453.553899291038
houdembp:bin houkai$ 

再横向比较一下,mysql 5.5、5.6、5.7 各自的情况

场景 mysql 5.5(600万) mysql 5.6(300万) mysql 5.7 (300万)
mycat sec 1953 tps 3072 sec 998 tps 3005 sec943 tps 3180
直联 sec 1067 tps 5622 sec 505 tps 5939 sec 550 tps 5453
乍一看 mysql 5.7 的效能还不及 5.6 甚至是 5.5 ,怎么看也不科学。其实 5.6 的环境,mysql做了参数调优,innodb buffer 都作了调整,5.5环境使用mysql推荐的配置。
而 5.7 环境在没有配任何参数的情况下通过mycat压入300万数据效果要比另两个环境要好,到真是觉得有些意外。这个事情回头还真得花时间去看看。

OK,本篇完。

环境部署参考下文

【转】源码编译安装 MySQL 5.6.10最佳实践 SSL验证不成功

centos mysql 5.5 简易安装

centos mysql 5.7 简易安装

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