vagrant环境中symfony程序速度慢解决方案
最近在写一个symfony程序，最开始是直接在Mac下通过console server:run命令启动一个简单的web服务器来访问，但是Mac本身自带的php没有memcached扩展，所以就把这个程序放到vagrant中，然而发现访问的速度非常慢，一个极其简单的页面也需要消耗10秒左右，于是搜索了一下，发现之前有人遇到相同的 问题。
vagrant环境中symfony程序速度慢解决方案
该文章中列出的几个方案： http://leo108.com/pid-2196.asp
- 使用vagrant1.2版本（目测不合适，现在都已经1.7+了）
- 使用NFS方式挂载目录
- vagrant虚拟机中的Vbox Guest Additions版本与virtual box版本一致（我当前的环境就是一致的）
- 使用opcache扩展（我当前的环境已经安装了apc）
- 关闭xdebug和xphrof扩展（我当前环境已经关闭）
看这情况，只能尝试一下NFS方式了，根据vagrant的 文档配置，还好OS X自带了nfsd，省去了安装的麻烦，只需要修改vagrantfile即可。
symfony
在vagrantfile中增加两行：
http://leo108.com/pid-2196.asp
config.vm.network :private_network, type: :dhcpconfig.vm.synced_folder ".", "/vagrant", type: "nfs"
然后重启vagrant虚拟机vagrant reload
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