php+nginx高并發優化

說明：本人不太懂技術，方案是整理而來，不一定好，請慎用。

一、nginx優化

/etc/nginx/nginx.conf  

worker_processes設為auto

添加worker_rlimit_nofile  65535;

worker_connections調大，比如20480

https://blog.csdn.net/sh2018/article/details/104188760

二、php程序優化

适當提高pm.max_children、pm.max_spare_servers

注意：pm.start_servers<=pm.min_spare_servers<pm.max_spare_servers<=pm.max_children

比如

pm.max_children = 50

pm.start_servers = 10

pm.min_spare_servers = 10

pm.max_spare_servers = 50

三、backlog優化

1、修改核心，在/etc/sysctl.conf中添加

net.ipv4.tcp_max_syn_backlog = 4096

net.core.netdev_max_backlog = 4096

2、php-fpm配置修改

/data/mystack/sites/www.888.com/conf/php-1.conf

把listen.backlog = -1修改成listen.backlog = 4096

3、nginx配置修改

/data/mystack/sites/www.888.com/conf/nginx.conf

把listen 80;修改成listen 80 default backlog=4096;

最後重新開機php、nginx即可

https://blog.csdn.net/sh2018/article/details/105342031