初步试用Squid的替代产品──Varnish Cache网站加速器[原创] - 张宴的博客 - Web系统架构与底层研发
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初步试用Squid的替代产品──Varnish Cache网站加速器[原创]
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[ 2007-8-29 18:45 | by 张宴 ]
　　Varnish是一款高性能的开源HTTP加速器，挪威最大的在线报纸 Verdens Gang (vg.no) 使用3台Varnish代替了原来的12台squid，性能比以前更好。　　Varnish的作者Poul-Henning Kamp是FreeBSD的内核开发者之一，他认为现在的计算机比起1975年已经复杂许多。在1975年时，储存媒介只有两种：内存与硬盘。但现在计算机系统的内存除了主存外，还包括了cpu内的L1、L2，甚至有L3快取。硬盘上也有自己的快取装置，因此squid cache自行处理物件替换的架构不可能得知这些情况而做到最佳化，但操作系统可以得知这些情况，所以这部份的工作应该交给操作系统处理，这就是Varnish cache设计架构。　　Varnish可以在FreeBSD 6.0和Linux 2.6内核上运行。　　1、编译安装varnish HTTP加速器：引用wget http://blog.zyan.cc/soft/linux/varnish/varnish-1.1.1.tar.gztar zxvf varnish-1.1.1.tar.gzcd varnish-1.1.1./configure --prefix=/usr/local/varnishmake && make install　　2、简单启动varnish守护进程，用本机80端口去反向代理加速127.0.0.1:81上的Apache服务器：引用/usr/local/varnish/sbin/varnishd -a :8080 -b 127.0.0.1:81 -p thread_pool_max=1500 -p thread_pools=5 -p listen_depth=512 -p client_http11=on -w 1,10000,120　　Varnish官方网站：http://www.varnish-cache.org/　　另有一份PDF文档，说明Varnish原理的：http://ishare.iask.sina.com.cn/cgi-bin/fileid.cgi?fileid=2163384　　我测试了一下，在同等配置环境下，Varnish的性能确实要超过Squid，稳定性也不错，值得继续去深入研究。
Tags: linux , cache , squid
技术大类 » Cache与存储 | 评论(40) | 引用(0) | 阅读(61778)
引用地址： 注意： 该地址仅在今日23:59:59之前有效
jackbillow
2007-8-31 18:18
张兄，写的不错，我也测试了一下。性能是比squid高。
访客
2007-10-28 20:26
例子里面说的是一对一的代理， 应该支持像squid那样的虚拟主机代理吧。
phpsir
2008-6-11 11:16
IT流言终结者1:Varnish vs Squidhttp://www.hiadmin.com/?p=223您怎么看
freeke
2008-11-25 14:19
varnish 2.0 发布了,听说性能更加强了!
当代狂人
2008-12-9 18:58
另有一份PDF文档，说明Varnish原理的：http://ishare.iask.sina.com.cn/cgi-bin/fileid.cgi?fileid=2163384老大，能不能来份中文的呀，看英文的实在很累哦...
当代狂人
2008-12-9 19:00
还有个疑问 如果varnish装在另外个机器上，域名我绑哪上面呀 apache的还是varnish服务器上呀？
当代狂人
2008-12-9 19:02
我看了你这文章，因为初次接触这方面的问题，我直接选择了varnish，squid的都没去考虑了。
richardzhao
2010-4-20 11:56
请问一下，你里面的图是用什么软件画的？
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有windows版本不？
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