varnish性能测试

kyjh · 发表于 2015-1-16 09:05:41

安装varnish

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[iyunv@node3 ~]# ls
anaconda-ks.cfg  install.log.syslog  varnish-docs-3.0.6-1.el6.x86_64.rpminstall.log    varnish-3.0.6-1.el6.x86_64.rpm  varnish-libs-3.0.6-1.el6.x86_64.rpm
[iyunv@node3 ~]# rpm -ivh varnish-3.0.6-1.el6.x86_64.rpm varnish-libs-3.0.6-1.el6.x86_64.rpm varnish-docs-3.0.6-1.el6.x86_64.rpm
Preparing...             ########################################### [100%]
1:varnish-libs             ########################################### [ 33%]
2:varnish                ########################################### [ 67%]
3:varnish-docs             ########################################### [100%]

配置varnish运行属性
wpid-14918b754a35b247dccc8df0b9700972_b9b8f451-a10c-4b93-89ef-23a63f4ef030.png

varnish配置文件
wpid-14918b754a35b247dccc8df0b9700972_78a96b8f-864a-4d23-87d5-6d36230a9870.png

varnishadm管理工具连接

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[iyunv@node3 ~]# varnishadm -S /etc/varnish/secret -T 127.0.0.1:6082
200
-----------------------------
Varnish Cache CLI 1.0
-----------------------------
Linux,2.6.32-504.el6.x86_64,x86_64,-sfile,-smalloc,-hcritbit
varnish-3.0.6 revision 1899836

Type 'help' for command list.
Type 'quit' to close CLI session.

varnish>

修改default.vcl配置文件测试

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backend webserver {
.host = "172.16.30.11";
.port = "80";
}

varnishadm管理工具重新载入配置文件

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varnish> vcl.load t1 /etc/varnish/default.vcl ##载入配置文件，t1是给此配置命名，后面跟配置文件，如果有错误会有提示
200
VCL compiled.
varnish> vcl.use t1                         ##使用上面载入的配置文件，不用重启varnish
200

varnish>

测试结果

wpid-14918b754a35b247dccc8df0b9700972_a63e5fd9-3213-485b-9803-3df72293c942.png

在172.16.30.11的主机上安装好wordpress，这里不在详细列出
修改default.vcl为wordpress加速
注：此配置文件参考《高性能Linux服务器构建实战》高俊峰著

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backend webserver {       ##定义的后端主机，此主机上有wordpress
  .host = "172.16.30.11";
  .port = "80";
}
sub vcl_recv {
      if (req.http.x-forwarded-for) {
         set req.http.X-Forwarded-For =
            req.http.X-Forwarded-For + ", " + client.ip;
      } else {
         set req.http.X-Forwarded-For = client.ip;
      }
   if (req.request != "GET" && ##如果请求的类型不是GET、HEAD、PUT、POST、TRACE、OPTIONS、DELETE时，则进入“pipe”模式
   req.request != "HEAD" &&
   req.request != "PUT" &&
   req.request != "POST" &&
   req.request != "TRACE" &&
   req.request != "OPTIONS" &&
   req.request != "DELETE") {
      /* Non-RFC2616 or CONNECT which is weird. */
      return (pipe);
   }
   if (req.request != "GET" && req.request != "HEAD") {  ##如果请求的类型不是GET或HEAD，则进入pass模式
      return (pass);
   }
   if (req.http.Authorization || req.http.Cookie) {
      return (pass);
   }
}
sub vcl_pipe {
   return (pipe);
}
sub vcl_pass {
   return (pass);
}
sub vcl_hash {
   hash_data(req.url);
   if (req.http.host) {
      hash_data(req.http.host);
   } else {
      hash_data(server.ip);
   }
   return (hash);
}
sub vcl_hit {
   return (deliver);
}

sub vcl_miss {
   return (fetch);
}
sub vcl_deliver { ##测试缓存是否命中
      if (obj.hits > 0){
      set resp.http.X-Cache = "HIT";
      } else{
      set resp.http.X-Cache = "MISS";
      }
      return (deliver);
}

测试使用和不使用varnish的区别
在非此两台主机的主机上使用ab进行压力测试

顺便附上varnish主机的cpu与httpd主机的cpu使用
wpid-14918b754a35b247dccc8df0b9700972_36cacfa2-c615-4125-a532-34599456226a.png