优化nginx在高并发时的性能笔记.docx

优化nginx在高并发时的性能笔记安装make：yum -y install gcc automake autoconf libtool make wget安装g+:yum install gcc gcc-c+1.选定源码目录可以是任何目录，本文选定的是/usr/local/srccd /usr/local/src2.安装PCRE库ftp:/ftp.csx.cam.ac.uk/pub/software/programming/pcre/ 下载最新的 PCRE 源码包，使用下面命令下载编译和安装 PCRE 包：cd /usr/local/srcwget ftp:/ftp.csx.cam.ac.uk/pub/software/programming/pcre/pcre-8.34.tar.gztar -zxvf pcre-8.34.tar.gzcd pcre-8.34./configuremakemake install3.安装zlib库/zlib-1.2.8.tar.gz 下载最新的 zlib 源码包，使用下面命令下载编译和安装 zlib包：cd /usr/local/srcwget /zlib-1.2.8.tar.gztar -zxvf zlib-1.2.8.tar.gzcd zlib-1.2.8./configuremakemake install4.安装ssl（某些vps默认没装ssl)cd /usr/local/srcwget /source/openssl-1.0.1g.tar.gztar -zxvf openssl-1.0.1g.tar.gz安装分析程序性能软件#wget /Unix/NonGNU/libunwind/libunwind-1.1.tar.gz#tar zxvf libunwind-1.1.tar.gz#cd libunwind-1.1#CFLAGS=-fPIC ./configure -prefix=/usr# make CFLAGS=-fPIC# make CFLAGS=-fPIC install#wget /files/gperftools-2.1.tar.gz#tar xzvf gperftools-2.1.tar.gz#cd gperftools-2.1.在这里注意这步,如果是32位系统,可以不添加 -enable-frame-pointers,如果是64位系统,并且你之前没有安装libunwind,那么你一定要添加这个:-enable-frame-pointers#./configure -prefix=/usr -enable-frame-pointers#make#make install到这里安装google-perftools完成了但未生效,接下来需要使google-perftools生效:#echo /usr/local/lib /etc/ld.so.conf.d/usr_local_lib.confecho /usr/lib /etc/ld.so.conf.d/usr_lib.conf#/sbin/ldconfig为了使Nginx支持google-perftools,需要加上-with-google_perftools_module重新编译Nginxwget /download/nginx-1.4.7.tar.gz# useradd -M -s /sbin/nologin nginx#tar zxvf nginx-1.4.7.tar.gz#cd nginx-1.4.7#mkdir /usr/local/nginx -p例如:./configure -user=nginx -group=nginx -prefix=/usr/local/nginx -conf-path=/usr/local/nginx/nginx.conf -pid-path=/usr/local/nginx/nginx.pid -with-pcre=/usr/local/src/pcre-8.34 -with-zlib=/usr/local/src/zlib-1.2.8 -with-http_realip_module -with-http_stub_status_module -with-http_addition_module -with-google_perftools_modulemakemake install添加Nginx快速重启脚本,请从下载.到这里安装Nginx完成.接下来为google-perftools添加线程目录:#mkdir /tmp/tcmalloc#chmod 0777 /tmp/tcmalloc修改/usr/local/nginx/conf/nginx.conf在pid这行的下面添加pid logs/nginx.pid;google_perftools_profiles /tmp/tcmalloc;重新启动nginx:/usr/local/nginx/sbin/nginx -c /usr/local/nginx/nginx.confkill -信号类型(HUP|TERM|QUIT) cat /usr/local/nginx/nginx.pid例如kill -QUIT cat /usr/local/nginx/nginx.pidkill -HUP cat /usr/local/ngin