nginx性能调优要点

1、提高worker连接限制

  events {
    worker_connections 100000;
}

提示：缺省为1024

2、优化worker数量

  worker_processes auto;

3、配置UpStream连接复用

  upstream demo1 {
    server 1.1.1.1:80;
    keepalive 128;
}

4、配置CPU亲和性与进程优化级

以双核为例

  worker_processes 2;
worker_cpu_affinity 0101 1010;
worker_priority -20;

5、配置日志缓存

  access_log   /var/log/nginx/access.log   main buffer=1m;

6、配置缓存

  # filename: proxy_cache.conf

proxy_cache_path /data/nginx/proxy_cache levels=1:2 keys_zone=CACHE:1024m max_size=10g inactive=12h use_temp_path=off;

# cache_path:           缓存存放的目录
# keys_zone:            缓存 zone名为 CACHE, 内存分配大小为 1024M，每M大约能存储8000个key
# loader_files:         最大加载文件数量 (缺省: 100)
# loader_threshold:     迭代的持续时间,以毫秒为单位(缺省: 200)
# max_size:             缓存最大上限空间
# inactive:             清空 12h 没有访问过的文件，缺省10分钟
# use_temp_path:        为off时将在缓存直接写到proxy_cache_path目录下，on时先写入到proxy_temp_path然后重命名到 proxy_cache_path下[建议使用off]

proxy_cache_key	            $scheme$host$request_method$request_uri;
proxy_no_cache              $cookie_nocache $arg_nocache $http_authorization;

7、开启gzip压缩

  # filename: gzip.conf

gzip             on;
gzip_min_length  4k;
gzip_buffers     4 256k;
gzip_comp_level  6;
gzip_types       application/atom+xml
                 application/javascript
                 application/json
                 application/ld+json
                 application/manifest+json
                 application/rss+xml
                 application/vnd.geo+json
                 application/vnd.ms-fontobject
                 application/x-font-ttf
                 application/x-web-app-manifest+json
                 application/xhtml+xml
                 application/xml
                 font/opentype
                 image/bmp
                 image/svg+xml
                 image/x-icon
                 text/cache-manifest
                 text/css
                 text/plain
                 text/vcard
                 text/vnd.rim.location.xloc
                 text/vtt
                 text/x-component
                 text/x-cross-domain-policy;
gzip_vary        on;
gzip_proxied     expired no-cache no-store private auth;

提示： 也可以使用Google的br压缩算法（需要手动编译）