【汇总压力测试】linux+nginx+php-fpm+mysql优化
====================== 压测前：
netstat -ntlp
ulimit -SHn 65535? （加入开机启动，nginx启动前）
检查优化：
nginx.conf
php-fpm.conf
my.cnf
?
优化/etc/sysctl.conf
增加：
?kernel.shmmax = 68719476736
?# Controls the maximum number of shared memory segments, in pages
?kernel.shmall = 4294967296
???
??????? #syncookie
??????? net.ipv4.tcp_max_syn_backlog = 65536
??????? net.core.netdev_max_backlog =? 32768
??????? net.core.somaxconn = 32768
??????? net.core.wmem_default = 8388608
??????? net.core.rmem_default = 8388608
??????? net.core.rmem_max = 16777216
??????? net.core.wmem_max = 16777216
??????? net.ipv4.tcp_timestamps = 0
??????? net.ipv4.tcp_synack_retries = 2
??????? net.ipv4.tcp_syn_retries = 2
??????? #time_wait
??????? net.ipv4.tcp_syncookies = 1
??????? net.ipv4.tcp_tw_recycle = 1
??????? net.ipv4.tcp_fin_timeout = 5
??????? net.ipv4.tcp_tw_reuse = 1
??????? net.ipv4.tcp_mem = 94500000 915000000 927000000
??????? net.ipv4.tcp_max_orphans = 3276800
??????? net.ipv4.ip_local_port_range = 1024? 65535
?
?
?
?
?
查看mysql连接
#netstat -anp | grep mysql | wc -l
netstat -n | awk ‘/^tcp/ {++state[$NF]} END {for(key in state) print key,”\t”,state[key]}’
查看TIME_WAIT连接数
netstat -ae|grep “TIME_WAIT” |wc -l
netstat -n | awk ‘/^tcp/ {++state[$NF]} END {for(key in state) print key,”\t”,state[key]}’
查找较多time_wait连接
netstat -n|grep TIME_WAIT|awk ‘{print $5}’|sort|uniq -c|sort -rn|head -n20
?
?
?
?
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===================================实例测试
1
）
系统说明
服务器说明：
两台
CentOS release 5.4
(Final) 32
位，
1
颗
CPU 8
核
?
a.??????
服务器
1
服务：
Nginx + php (fpm)
nginx
开启的进程数
8
FastCGI
进程数
128
?
b.??????
服务器
2
服务
:Memcache+mysql
memcache
替代
session
，开启两个端口，分别分配
1024M;
?
?
2)
模拟场景
:
首页，登录，退出
并发量：
900
?
?
?
===============
系统说明
?
#cat /etc/issue
CentOS release 5.4 (Final)
