51 Nginx的Gzip模块配置指令(二)

51.1 gzip_comp_level

gzip_comp_level：用于设置Gzip压缩程度，级别从1~9，1表示压缩程度最低，效率最高，9表示压缩程度最高，效率最低、最费时间

语法	gzip_comp_level level;
默认值	gzip_comp_level 1;
位置	http 、server 、location

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
user www;
worker_processes 2;
error_log logs/error.log;
pid logs/nginx.pid;
#daemon on; # 默认on
events {
    accept_mutex on;
    multi_accept on;
    worker_connections  1024;
    use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    gzip  on;
    gzip_types application/javascript;
    #gzip_comp_level 1;
    server {
        listen       80;
        server_name  localhost;
        
        location / {
          root html;
          index index.html index.htm;
        }

        error_page   500 502 503 504 404 /50x.html;
        location = /50x.html {
            root   html;
        }
    }  
}
[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

View Code

浏览器访问：http://10.0.0.100/jquery.js，默认 1 级，31.4KB

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
user www;
worker_processes 2;
error_log logs/error.log;
pid logs/nginx.pid;
#daemon on; # 默认on
events {
    accept_mutex on;
    multi_accept on;
    worker_connections  1024;
    use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    gzip  on;
    gzip_types application/javascript;
    gzip_comp_level 6;
    server {
        listen       80;
        server_name  localhost;
        
        location / {
          root html;
          index index.html index.htm;
        }

        error_page   500 502 503 504 404 /50x.html;
        location = /50x.html {
            root   html;
        }
    }  
}
[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

View Code

浏览器访问：http://10.0.0.100/jquery.js，打开 6 级，7.9KB

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
user www;
worker_processes 2;
error_log logs/error.log;
pid logs/nginx.pid;
#daemon on; # 默认on
events {
    accept_mutex on;
    multi_accept on;
    worker_connections  1024;
    use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    gzip  on;
    gzip_types application/javascript;
    gzip_comp_level 9;
    server {
        listen       80;
        server_name  localhost;
        
        location / {
          root html;
          index index.html index.htm;
        }

        error_page   500 502 503 504 404 /50x.html;
        location = /50x.html {
            root   html;
        }
    }  
}
[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

View Code

浏览器访问：http://10.0.0.100/jquery.js，打开 9 级，7.5KB

注意：gzip_comp_level 压缩等级不是越高越好，不仅随着压缩级别提升浪费CPU资源，并且效率也在下降级别：6 -> 9，存储：7.9KB -> 7.5KB，建议使用中间等级，例如：6

51.2 gzip_vary

gzip_vary：用于设置使用Gzip进行压缩时，发送是否携带"Vary:Accept-Encoding"头域的响应头部。用于告诉接收方，发送的数据经过Gzip压缩处理

语法	gzip_vary on \| off;
默认值	gzip_vary off;
位置	http 、server 、 location

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
user www;
worker_processes 2;
error_log logs/error.log;
pid logs/nginx.pid;
#daemon on; # 默认on
events {
    accept_mutex on;
    multi_accept on;
    worker_connections  1024;
    use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    gzip  on;
    gzip_types application/javascript;
    gzip_comp_level 6;
    gzip_vary on;
    server {
        listen       80;
        server_name  localhost;
        
        location / {
          root html;
          index index.html index.htm;
        }

        error_page   500 502 503 504 404 /50x.html;
        location = /50x.html {
            root   html;
        }
    }  
}
[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

View Code

浏览器访问：http://10.0.0.100/jquery.js

HTTP/1.1 200 OK
Server: nginx/1.16.1
Date: Fri, 15 May 2026 06:28:27 GMT
Content-Type: application/javascript
Last-Modified: Thu, 14 May 2026 08:55:52 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
ETag: W/"6a058e18-3cc6c"
Content-Encoding: gzip

对比，未添加此参数

HTTP/1.1 200 OK
Server: nginx/1.16.1
Date: Fri, 15 May 2026 06:02:21 GMT
Content-Type: application/javascript
Last-Modified: Thu, 14 May 2026 08:55:52 GMT
Transfer-Encoding: chunked
Connection: keep-alive
ETag: W/"6a058e18-3cc6c"
Content-Encoding: gzip

51.3 gzip_buffer

gzip_buffer：处理用于请求压缩的缓冲区数量和大小，相乘即为缓冲区总大小，例：32 x 4k

语法	gzip_buffer number size;
默认值	gzip_buffer 32 4k \| 16 8k;
位置	http 、 server 、location

number：指定 nginx 服务器向系统申请缓冲空间个数

size：每个缓冲空间的大小

gzip_buffer 影响压缩速度、压缩率、占用内存有关，此项设定一般和服务器操作系统有关

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posted on 2026-05-14 15:34 马俊南阅读(8) 评论(0) 收藏举报