php7性能分析工具xhprof使用

xhprof分析脚本引入

在需要分页的页面最前面引入即可，不建议全局引入

xhprof扩展安装

git clone https://github.com/longxinH/xhprof cd xhprof/extension/
phpize
./configure --with-php-config=/usr/local/php/bin/php-config --enable-xhprof
make && make install

php扩展配置
[xhprof]
extension=xhprof.so

xhprof原生web支持 当前不采用

xhprof自带web页面配置
mkdir /home/ding/xhprof
cp -r xhprof/xhprof_html  /home/ding/xhprof/
cp -r xhprof/xhprof_lib /home/ding/xhprof/

xhprof.php 首页引入文件
xhprof_enable(XHPROF_FLAGS_NO_BUILTINS + XHPROF_FLAGS_CPU + XHPROF_FLAGS_MEMORY);
register_shutdown_function(function(){
$data = xhprof_disable();   //返回运行数据
include '/home/ding/projects/xhprof/xhprof_lib/utils/xhprof_lib.php';
include '/home/ding/projects/xhprof/xhprof_lib/utils/xhprof_runs.php';
$objXhprofRun = new XHProfRuns_Default();
$objXhprofRun->save_run($data, "test"); //test 表示文件后缀
});

nginx配置
xhprof.com
root /home/ding/projects/xhprof/xhprof_html

xhprof.com域名访问web页面

图形扩展安装  自带的需要安装graphviz才能展示
yum install graphviz

配置php请求自动加载文件方法

1. 在php.ini中添加：
加载前
auto_prepend_file = /var/www/head.php
加载后
auto_append_file = /var/www/foot.php

2. 或者在.htaccess中添加
php_value auto_prepend_file = /home/ding/projects/xhprof.php
#php_value auto_append_file = /var/www/foot.php

3. nginx配置中添加
在enable_php.config 文件中添加
fastcgi_param PHP_VALUE "auto_prepend_file=/home/ding/projects/xhprof.php";

mongodb安装

xhgui采用mongodb存储数据
mongodb版本不易过高,把mongodb 版本降级为3.4
centos
tar zxf mongodb-linux-x86_64-3.2.9.tgz
mv mongodb-linux-x86_64-3.2.9 /usr/local/mongodb
cd /usr/local/mongodb
mkdir db
mac
brew install mongodb

mongodb扩展安装

tar zxf mongodb-1.3.0.tgz
cd mongodb-1.3.0
phpize
mac
./configure --with-php-config=/usr/local/php/bin/php-config --with-openssl-dir=/usr/local/Cellar/openssl/1.0.2n
centos
./configure --with-php-config=/usr/local/php/bin/php-config

make && make install

修改php.ini
extension=mongodb.so

重启php-fpm

mongodb操作

启动mongodb
nohup /usr/local/mongodb/bin/mongod --dbpath /usr/local/mongodb/db & > /home/ding/log/mongodb_init.log

客户端连接mongod
#不指定--host就采用默认
/usr/local/mongodb/bin/mongo --host 127.0.0.1:27017

执行以下命令初始化xhprof数据库
> use xhprof
> db.results.ensureIndex( { 'meta.SERVER.REQUEST_TIME' : -1 } )
> db.results.ensureIndex( { 'profile.main().wt' : -1 } )
> db.results.ensureIndex( { 'profile.main().mu' : -1 } )
> db.results.ensureIndex( { 'profile.main().cpu' : -1 } )
> db.results.ensureIndex( { 'meta.url' : 1 } )
> db.results.ensureIndex( { 'meta.simple_url' : 1 } )

//过期时间设置,定期删除信息 删除5天前的数据
> db.results.ensureIndex( { "meta.request_ts" : 1 }, { expireAfterSeconds : 432000 } )

> exit

清空数据

客户端关闭服务器
> use admin;
> db.shutdownServer();

xhgui 图形界面安装配置

工具使用 http://blog.it2048.cn/article_tideways-xhgui.html 
代码安装
cd ~/projects
git clone https://github.com/laynefyc/xhgui-branch.git cd xhgui-branch
php install.php

nginx配置
xhgui.com
root   /var/www/example.com/public/xhgui/webroot/;
index  index.php;
location / {
try_files $uri $uri/ /index.php?$args;
}
include enable_php.config;

在enable_php.conf中添加

location ~ \.php {
fastcgi_pass unix:/tmp/php-fpm.sock;
fastcgi_index index.php;
include fastcgi_params;
# 最长执行时间
fastcgi_read_timeout 300;
fastcgi_split_path_info       ^(.+\.php)(/.+)$;
fastcgi_param PATH_INFO       $fastcgi_path_info;
#添加php预加载文件
fastcgi_param PHP_VALUE "auto_prepend_file=/Users/apple/projects/xhgui/external/header.php";
fastcgi_param PATH_TRANSLATED $document_root$fastcgi_path_info;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
}

域名过滤
'profiler.enable' => function() {
//域名过滤
$domains = ["xyii.com"];
$domain = $_SERVER['SERVER_NAME'];
if(in_array($domain,$domains)){
return true;
}else{
return false;
}
}

xhgui bug修复
$profile = [];
foreach($data['profile'] as $key => $value) {
$profile[strtr($key, ['.' => '_'])] = $value;
}
$data['profile'] = $profile;

基本返回值解读

'ct' => 1,          执行的次数
'wt' => 793898,     执行时间
'cpu' => 110507,    cpu时间
'mu' => 6582856,    内存使用
'pmu' => 6990728,   内存峰值