Hiphop是Facebook开发一款PHP二进制化的一个工具，最开始是由php转为C++，但是后来发现编译为c++的话，许多的时间会花费在编译代码上面，调试不方便，对于代码来说也不是即见即所得。

所以hiphop经历了这么几个阶段：

HPHPC=>HPHPI=>HHVM

HPHPC是静态编译，也就是把php转为c++

HPHPI是一个过渡产品，类似php zend虚拟机，性能还不如zend虚拟机，但是可以运行查看效果；

HHVM是在HPHPI基础上，应用了JIT技术，性能已经接近了HPHPC,目前facebook打算慢慢抛弃HPHPC；

性能上HPHPC和HHVM比zend虚拟机+加速器要节约cpu在50%在300%间（官方提供），我实际应用中，一般节约CPU在100%-300%间左右，流量越大越明显。

rpm -ivh http://ftp.riken.jp/Linux/fedora/epel/6/x86_64/epel-release-6-8.noarch.rpm

wget -O /etc/yum.repos.d/hop5.repo http://www.hop5.in/yum/el6/hop5.repo

yum clean all

rpm -ivh ftp://rpmfind.net/linux/epel/beta/6/x86_64/libmcrypt-2.5.8-9.el6.x86_64.rpm

rpm -ivh ftp://rpmfind.net/linux/epel/beta/6/x86_64/libmcrypt-devel-2.5.8-9.el6.x86_64.rpm

yum install git svn cpp make autoconf automake libtool patch memcached gcc-c++ cmake wget boost-devel mysql-devel pcre-devel gd-devel libxml2-devel expat-devel libicu-devel bzip2-devel oniguruma-devel openldap-devel readline-devel libc-client-devel libcap-devel binutils-devel pam-devel elfutils-libelf-devel tbb-devel libdwarf-devel dbus-cxx-devel libunwind-devel php-mssql libtool

如果准备编译安装的话，装以下的包就能够搭建好编译环境，如果不像编译安装则略过

yum install -y boost.x86_64 \

boost-chrono.x86_64 \

boost-date-time.x86_64 \

boost-devel.x86_64 \

boost-filesystem.x86_64 \

boost-graph.x86_64 \

boost-graph-mpich2.x86_64 \

boost-graph-openmpi.x86_64 \

boost-iostreams.x86_64 \

boost-jam.x86_64 \

boost-locale.x86_64 \

boost-math.x86_64 \

boost-mpich2.x86_64 \

boost-mpich2-devel.x86_64 \

boost-mpich2-python.x86_64 \

boost-openmpi.x86_64 \

boost-openmpi-devel.x86_64 \

boost-openmpi-python.x86_64 \

boost-program-options.x86_64 \

boost-python.x86_64 \

boost-random.x86_64 \

boost-regex.x86_64 \

boost-serialization.x86_64 \

boost-signals.x86_64 \

boost-static.x86_64 \

boost-system.x86_64 \

boost-test.x86_64 \

boost-thread.x86_64 \

boost-timer.x86_64 \

boost-wave.x86_64 \

cpp.x86_64 \

curl.x86_64 \

gcc.x86_64 \

gcc-c++.x86_64 \

gcc-gfortran.x86_64 \

gcc-objc.x86_64 \

gcc-objc++.x86_64 \

gcc-plugin-devel.x86_64 \

glog.x86_64 \

glog-devel.x86_64 \

gmp.x86_64 \

gmp-devel.x86_64 \

gmp-static.x86_64 \

golang.x86_64 \

libcurl.x86_64 \

libcurl-devel.x86_64 \

libdwarf.x86_64 \

libdwarf-devel.x86_64 \

libdwarf-static.x86_64 \

libdwarf-tools.x86_64 \

libevent.x86_64 \

libevent-devel.x86_64 \

libgcc.x86_64 \

libgfortran.x86_64 \

libgfortran-static.x86_64 \

libgomp.x86_64 \

libmemcached.x86_64 \

libmemcached-devel.x86_64 \

libmpc.x86_64 \

libmpc-devel.x86_64 \

libmudflap.x86_64 \

libmudflap-devel.x86_64 \

libmudflap-static.x86_64 \

libobjc.x86_64 \

libquadmath.x86_64 \

libquadmath-devel.x86_64 \

libquadmath-static.x86_64 \

libstdc++.x86_64 \

libstdc++-devel.x86_64 \

libstdc++-static.x86_64 \

libtool.x86_64 \

libtool-ltdl.x86_64 \

libtool-ltdl-devel.x86_64 \

lxc.x86_64 \

lxc-devel.x86_64 \

lxc-doc.x86_64 \

lxc-libs.x86_64 \

lxc-templates.x86_64 \

mpfr.x86_64 \

mpfr-devel.x86_64 \

nginx.x86_64 \

tbb.x86_64 \

tbb-devel.x86_64 \

tbb-doc.x86_64 \

如果这里安装 golang 包报错可以选择不安装这个包

如果不是编译安装，只要执行

yum install hiphop-php

git下libevent和hhvm的源码包，之所以要hhvm的源码包，是要在libevent源码中打入hhvm提供的针对libevent的补丁，才能让libevent支持hhvm

git clone git://github.com/libevent/libevent.git

git clone git://github.com/facebook/hiphop-php.git

cd libevent/

git checkout release-1.4.14b-stable

打补丁

cat ../hiphop-php/hphp/third_party/libevent-1.4.14.fb-changes.diff | patch -p1

打完补丁后改修一下libevent的http.c文件，解决内存泄露的关键

大概在2319行这里，在

if (req->evcon->state == EVCON_DISCONNECTED) {

下面，增加

req->userdone = 1;

./autogen.sh

./configure --prefix=/usr/ --libdir=/usr/lib64/  #注意路径不要出错，这里是覆盖了rpm安装的libevent

make && make install