Article Directory
First, the page compression
In practical applications, we take up less resources as possible in order to make the nginx, and a lot of high-definition pictures and pages contain a large amount of information we will take up a lot of resources. This is not conducive to performance optimization nginx, in order to solve this problem, we can do Gzip compression.
Nginx performance optimization features: Gzip compression (significantly improve page load speed)Open Gzip compression feature that allows website css, js, xml, html files compressed in the transmission, increase access speed, to optimize the performance of Nginx. After Gzip compressed into the original page size can be 30% or less, so that when users browse pages much faster. Gzip compression page requires a browser and server support both, in fact, is a server-side compression, passed after the explorer decompression and resolution. Browser where we do not need to worry, because the great majority of current browsers support Gzip resolved through the pages.
1, modify the configuration file/usr/local/nginx/conf/nginx.conf
33 gzip on;
# 开启gzip压缩功能
34 gzip_min_length 1;
# 设置允许压缩的页面最小字节数;
35 gzip_comp_level 2;
# 设置压缩比率，最小为1，处理速度快，传输速度慢；9为最大压缩比，处理速度慢，传输速度快; 这里表示压缩级别，可以是0到9中的任一个，级别越高，压缩就越小，节省了带宽资源，但同时也消耗CPU资源，所以一般折中为6
36 gzip_types text/plain application/x-javascript test/css application/xml vascript applic ation/x-httpd/php image/gif image/png;
#制定压缩的类型,线上配置时尽可能配置多的压缩类型
2, edit the default nginx release files/usr/local/nginx/html/index.html
[root@server2 html]# ls
50x.html index.html
[root@server2 html]# pwd
/usr/local/nginx/html
[root@server2 html]# cp /etc/passwd .
[root@server2 html]# ls
50x.html index.html passwd
[root@server2 html]# du -sh passwd
4.0K passwd
[root@server2 html]# vim passwd
[root@server2 html]# du -sh passwd
44K passwd
[root@server2 html]# mv passwd index.html
mv: overwrite ‘index.html’? y
[root@server2 html]# du -sh index.html
44K index.html
3, and then view the page size (press F12, then select Network-> Size, will be able to view their file size)
4, restart the service nginx -s reload, clear the cache to see again
Second, the picture compression
1, stop the service, recompilation. Add a new module
[root@server2 nginx-1.15.9]# make clean
[root@server2 nginx-1.15.9]# ./configure \
> --prefix=/usr/local/nginx \
> --pid-path=/var/run/nginx/nginx.pid \
> --lock-path=/var/lock/nginx.lock \
> --error-log-path=/var/log/nginx/error.log \
> --http-log-path=/var/log/nginx/access.log \
> --with-http_realip_module --with-http_image_filter_module=dynamic
[root@server2 nginx-1.15.9]# make
[root@server2 nginx-1.15.9]# cd objs/
[root@server2 objs]# ls
autoconf.err nginx.8 ngx_http_image_filter_module_modules.c ngx_modules.c
Makefile ngx_auto_config.h ngx_http_image_filter_module_modules.o ngx_modules.o
nginx ngx_auto_headers.h ngx_http_image_filter_module.so src
[root@server2 objs]# cp nginx -f /usr/local/nginx/sbin/nginx
#将新的二进制文件替换成之前的二进制文件
cp: overwrite ‘/usr/local/nginx/sbin/nginx’? y
[root@server2 objs]# mkdir /usr/local/nginx/modules
#创建新的目录，并将图像模块放在目录下
[root@server2 objs]# cp ngx_http_image_filter_module.so /usr/local/nginx/modules
2, edit the nginx configuration file /usr/local/nginx/conf/nginx.conf, reload.
1 load_module modules/ngx_http_image_filter_module.so;
47 location /search/ {
48 image_filter resize 50 100;
49 }
3, the test
In the above picture we can learn to share, have to enter the full path to the query in the browser, including the name of the picture, but this is obviously unreasonable, we believe that the pictures are placed in a directory, by looking select a picture directory is a good way
