tcMalloc优化nginx  记住：nginx一定要先启动 1>下载安装libunwind: #wget  http://download.savannah.gnu.org/releases/libunwind/libunwind-0.99.tar.gz wget  http://download.savannah.gnu.org/releases/libunwind/libunwind-0.99-alpha.tar.gz tar -zxvf libunwind-0.99-alpha.tar.gz cd libunwind-0.99-alpha CFLAGS=-fPIC  ./configure make CFLAGS=-fPIC make CFLAGS=-fPIC install   2>下载安装Google-perftools wget  http://soft.7dot.com/soft/google-perftools-1.8.tar.gz tar  -zxvf  google-perftools-1.8.tar.gz cd google-perftools-1.8 ./configure make  &&  make install echo "/usr/local/lib"  >  /etc/ld.so.conf.d/usr_local_lib.conf ldconfig   3>重新编译nginx(使nginx支持Google-perftools) cd nginx-1.2.8 ./configure  --with-google_perftools_module  --with-http_stub_status_module      #./configure \ #> --with-google_perftools_module  --with-http_stub_status_module    #--prefix=/usr/local/nginx     make  make install   4> 为google-perftools 添加线程目录 mkdir /tmp/tcmalloc chmod 0777 /temp/tcmalloc    5> 修改nginx主配置文件 cd  /usr/local/nginx/conf 修改nginx.conf 在pid这行添加下面代码 #pid logs/nginx.pid #google_perftools_profiles /tmp/tcmalloc/ google_perftools_profiles /tmp/tcmalloc     检查nginx.conf配置是否正确 /usr/local/nginx/sbin/nginx  -t  -c   /usr/local/nginx/conf/nginx.conf #/usr/local/nginx/sbin/nginx  -t  -c  /usr/local/nginx/sbin/conf/nginx.conf   重启nginx /usr/local/nginx/sbin/nginx -s reload #kill -HUP  cat /usr/local/nginx/logs/nginx.pid ps ax  | grep nginx | grep -v grep   | awk  '{print $1}' | xargs  kill -9  6>  验证 lsof -n | grep tcmalloc