一,tcmalloc全称thread-caching malloc,是谷歌开发的开源工具。与标准的glibc库的malloc比。tcmalloc在内存分配效率和速度比malloc高。至于为什么比malloc,有兴趣可以参考。下面这个网址。
- http://www.mysqlops.com/2011/06/14/google-tcmalloc-malloc.html#more-737
二,现在开始介绍在64bit centos 6.3的版本中让nginx使用tcmalloc。需要用到的软件都已经上传到附件中。
三,安装libunwind库。
- # tar xf libunwind-1.0.tar.gz
- # tar xf libunwind-1.0
- #CFLAGS=-fPIC ./configure添加编译参数
- # make CFLAGS=-fPIC
- # make CFLAGS=-fPIC install
- libtool: install: error: relink `libunwind-setjmp.la' with the above command before installing it
- make[3]: *** [install-libLTLIBRARIES] Error 1
- make[3]: Leaving directory `/down/libunwind-1.0/src'
- make[2]: *** [install-am] Error 2
- make[2]: Leaving directory `/down/libunwind-1.0/src'
- make[1]: *** [install] Error 2
- make[1]: Leaving directory `/down/libunwind-1.0/src'
- make: *** [install-recursive] Error 1
产生这种问题的原因:autotools兼容性的问题,运行命令autoreconf -i -f ,在重新编译安装下。
- #autoreconf -i -f
- #make clean
- #CFLAGS=-fPIC ./configure
- #make CFLAGS=-fPIC
- #make CFLAGS=-fPIC install
四,安装gpperftools:
- #tar xf gperftools-2.0.tar.gz
- # cd gperftools-2.0
- #./configure
- #make && make install
- cc1plus: warning: unrecognized command line option "-Wno-unused-result"
- ake: *** [stacktrace.lo] Error 1
为什么出现在这种错误,因此是64bit系统,至于更深度的解释,安装说明中有。下面重新编译。
- #make clean
- #./configure --enable-frame-pointers
- #make && make install
- #echo "/usr/local/lib" > /etc/ld.so.conf.d/usr_local_lib.conf
- #ldconfig
五,编译pcre,使nginx支持http rewrite。
- # tar xf pcre-8.10.tar.gz
- # cd pcre-8.10
- # ./configure
- # make && make install
六,编译nginx
- # tar xf nginx-1.2.3.tar.gz
- # ./configure \
- --with-http_ssl_module \
- --with-http_flv_module \
- --with-http_stub_status_module \
- --with-http_gzip_static_module \
- --http-client-body-temp-path=/var/tmp/nginx/client/ \
- --http-proxy-temp-path=/var/tmp/nginx/proxy/ \
- --http-fastcgi-temp-path=/var/tmp/nginx/fcgi/ \
- --http-uwsgi-temp-path=/var/tmp/nginx/uwsgi \
- --http-scgi-temp-path=/var/tmp/nginx/scgi \
- --with-pcre \
- --with-google_perftools_module
- # make && make install
7,为gperftools创建线程目录
- #mkdir /tmp/tcmalloc
- #chmod 0777 /tmp/tcmalloc
8,修改nginx的配置文件
- #vim /usr/local/nginx/conf/nginx.conf
- #pid logs/nginx.pid;
- google_perftools_profiles /tmp/tcmalloc;添加这一行
9,启动nginx,并验证tcmalloc有没有正常加载
- # /usr/local/nginx/sbin/nginx
- # lsof -n |grep tcmalloc
- nginx 1893 nobody 9w REG 253,0 0 43018 /tmp/tcmalloc.1893
- nginx 1894 nobody 11w REG 253,0 0 43016 /tmp/tcmalloc.1894
至此已经替换成功。
本文转自 deng304749970 51CTO博客,原文链接:http://blog.51cto.com/damondeng/992645,如需转载请自行联系原作者