使用google-perftools优化nginx在高并发时的性能完整教程[第二版]
http://admclub.com/view/%e4%bd%bf%e7%94%a8google-perftools%e4%bc%98%e5%8c%96nginx%e5%9c%a8%e9%ab%98%e5%b9%b6%e5%8f%91%e6%97%b6%e7%9a%84%e6%80%a7%e8%83%bd
Nginx因为它小巧,占用资源少,非常适合Web站点,越来越多的Linux+Nginx+php+MySQL的站点.在近年逐渐有超过Apache和Lighttpd的趋势.
如果使用googler开发的google-perftools优化Nginx和MySQL的内存管理,性能将会有一定程度的提升.特别是对高并发下的服务器,效果更明显.本教程仅适用于Linux,不适用于Windows.
下面说说如果安装google-perftools,并使Nginx和MySQL支持google-perftools.
今天首先介绍如何优化Nginx:
1,首先下载并安装google-perftools:
注意了,如果是64位系统:
那么你需要做:
1)先安装libunwind或者2)在configure时添加–enable-frame-pointers.
那么首先说说如何安装libunwind:
wget http://download.savannah.gnu.org/releases/libunwind/libunwind-0.99.tar.gz
tar zxvf libunwind-0.99.tar.gz
cd libunwind-0.99/
CFLAGS=-fPIC ./configure –prefix=/usr
make CFLAGS=-fPIC
make CFLAGS=-fPIC install
到这里安装libunwind完成.
如果是使用添加–enable-frame-pointers的方式,先不管,咱们往下走.
下载并安装google-perftools:
wget http://google-perftools.googlecode.com/files/google-perftools-1.7.tar.gz
tar xzvf google-perftools-1.7.tar.gz
cd google-perftools-1.7
然后开始配置:
./configure –prefix=/usr –enable-frame-pointers
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
编译并安装:
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.conf
/sbin/ldconfig
注意，这里的双引号是英文的。
到这里安装google-perftools完成.
为了使Nginx支持google-perftools,需要加上–with-google_perftools_module重新编译Nginx,如果不知道如何安装Nginx,可以从这里查看Nginx安装教程.
例如:
./configure –user=www –group=www –prefix=/usr/local/nginx \
–with-http_stub_status_module \
–with-http_ssl_module –with-openssl= \
–with-http_addition_module \
–with-zlib= \
–with-google_perftools_module
make
make install
添加Nginx快速重启脚本,请从wpadm.com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/ncing.conf
在pid这行的下面添加
#pid? ?? ???logs/nginx.pid;
google_perftools_profiles /tmp/tcmalloc;
重新启动nginx:
service nginx restart
验证是否正在运行:
[root@bootes ~]# lsof -n | grep tcmalloc
nginx???? 13101??? www?? 45w????? REG??????????????? 8,1????????? 0??? 4014748 /tmp/tcmalloc.13101
nginx???? 13102??? www? 47w????? REG??????????????? 8,1????????? 0??? 4014742 /tmp/tcmalloc.13102
nginx???? 13103??? www?? 49w????? REG??????????????? 8,1????????? 0??? 4014746 /tmp/tcmalloc.13103
nginx???? 13105??? www?? 51w????? REG??????????????? 8,1????????? 0??? 4014745 /tmp/tcmalloc.13105
nginx???? 13106??? www?? 53w????? REG??????????????? 8,1????????? 0??? 4014743 /tmp/tcmalloc.13106
nginx???? 13107??? www?? 55w????? REG??????????????? 8,1????????? 0??? 4014749 /tmp/tcmalloc.13107
nginx???? 13108??? www?? 57w????? REG??????????????? 8,1????????? 0??? 4014754 /tmp/tcmalloc.13108
nginx???? 13109??? www?? 59w????? REG??????????????? 8,1????????? 0??? 4014750 /tmp/tcmalloc.13109
nginx???? 13110??? www?? 61w????? REG??????????????? 8,1????????? 0??? 4014747 /tmp/tcmalloc.13110
nginx???? 13111??? www?? 63w????? REG??????????????? 8,1????????? 0??? 4014755 /tmp/tcmalloc.13111
nginx???? 13112??? www?? 65w????? REG??????????????? 8,1????????? 0??? 4014753 /tmp/tcmalloc.13112
nginx???? 13113??? www?? 67w????? REG??????????????? 8,1????????? 0??? 4014756 /tmp/tcmalloc.13113
nginx???? 13114??? www? 69w????? REG??????????????? 8,1????????? 0??? 4014757 /tmp/tcmalloc.13114
nginx???? 13115??? www?? 71w????? REG??????????????? 8,1????????? 0??? 4014751 /tmp/tcmalloc.13115
nginx???? 13116??? www?? 73w????? REG??????????????? 8,1????????? 0??? 4014744 /tmp/tcmalloc.13116
nginx???? 13117??? www?? 75w????? REG??????????????? 8,1????????? 0??? 4014752 /tmp/tcmalloc.13117
我的服务器因为有8核,所以开启了8个Nginx线程,每个线程会有一行类似的记录.
到这里安装优化完成.
