PHP性能分析工具XHProf安装使用教程,xhprof安装使用
PHP性能分析工具XHProf安装使用教程,xhprof安装使用
HProf是facebook开源出来的一个php轻量级的性能分析工具,跟Xdebug类似,但性能开销更低,还可以用在生产环境中,也可以由程序开关来控制是否进行profile。基于浏览
器的性能分析用户界面能更容易查看,或是与同行们分享成果。也能绘制调用关系图。在数据收集阶段,它记录调用次数的追踪和包容性的指标弧在动态callgraph的一个程序。
它独有的数据计算的报告/后处理阶段。在数据收集时,XHProfd通过检测循环来处理递归的函数调用,并通过给递归调用中每个深度的调用一个有用的命名来避开死循环。
XHProf的轻量级性质和汇聚功能,使得它非常适合用于收集“生产环境”的性能统计数据的统计。
1. 安装XHProf
复制代码 代码如下:
wget http://pecl.php.net/get/xhprof-0.9.2.tgz
tar zxf xhprof-0.9.2.tgz
cd xhprof-0.9.2
cp -r xhprof_html xhprof_lib
cd extension
phpize
./configure
make
make install
2. 配置 php.ini 文件
复制代码 代码如下:
[xhprof]
extension=xhprof.so
;
; directory used by default implementation of the iXHProfRuns
; interface (namely, the XHProfRuns_Default class) for storing
; XHProf runs.
; 记得
xhprof.output_dir=
重启服务让修改生效,现在就可以使用XHProf了,不过为了显示效果更炫,最好继续安装Graphviz。
3. 安装Graphviz
复制代码 代码如下:
wget http://www.graphviz.org/pub/graphviz/stable/SOURCES/graphviz-2.26.3.tar.gz
tar zxf graphviz-2.26.3.tar.gz
cd graphviz-2.26.3
./configure
make
make install
安装完成后,会生成/usr/local/bin/dot文件,你应该确保路径在PATH环境变量里,以便XHProf能找到它。
4. 应用XHProf
复制代码 代码如下:
xhprof_enable();//打开xhprof
/******程序逻辑 Start******/
function test1(){
sleep(3);
return;
}
function test2(){
test1();
}
function test3(){
test2();
}
function p(){
echo '
xhprof test
';}
p();
test3();
/******程序逻辑 End******/
$xhprof_data = xhprof_disable();//关闭xhprof
//保存xhprof数据
include_once '../xhprof_lib/utils/xhprof_lib.php';
include_once '../xhprof_lib/utils/xhprof_runs.php';
$xhprof_runs = new XHProfRuns_Default();
$xhprof_source = 'xhprof_test';
$run_id = $xhprof_runs->save_run($xhprof_data, $xhprof_source);
$report_url = 'http://xhprof.rebill.info/index.php?run='.$run_id.'&source='.$xhprof_source;
echo '
';
echo 'view the performance report:'.$report_url.'';
如此一来,会在上面设定的xhprof.output_dir目录里生成名字类似4c236583ef490.xhprof_test的数据文件,可以很方便的通过Web方式浏览效果:
http://xhprof.rebill.info/index.php?run=4c236583ef490&source=xhprof_test
目前显示的是表格形式的显示,点击页面上的[View Full Callgraph],就能看到精美的图片显示了。
在线测试体验地址:http://xhprof.rebill.info/test.php

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











In the cryptocurrency market, choosing a reliable trading platform is crucial. As a world-renowned digital asset exchange, the OK trading platform has attracted a large number of novice users in mainland China. This guide will introduce in detail how to register and use it on the OK trading platform to help novice users get started quickly.

Go uses the "strings" package for string operations. 1) Use strings.Join function to splice strings. 2) Use the strings.Contains function to find substrings. 3) Use the strings.Replace function to replace strings. These functions are efficient and easy to use and are suitable for various string processing tasks.

PHPisusedforsendingemailsduetoitsintegrationwithservermailservicesandexternalSMTPproviders,automatingnotificationsandmarketingcampaigns.1)SetupyourPHPenvironmentwithawebserverandPHP,ensuringthemailfunctionisenabled.2)UseabasicscriptwithPHP'smailfunct

Ranking of the top ten cryptocurrency exchanges in the currency circle: 1. Binance: Leading the world, providing efficient trading and a variety of financial products. 2. OKX: It is innovative and diverse, supporting a variety of transaction types. 3. Huobi: Stable and reliable, with high-quality service. 4. Coinbase: Be friendly for beginners and simple interface. 5. Kraken: The first choice for professional traders, with powerful tools. 6. Bitfinex: efficient trading, rich trading pairs. 7. Bittrex: Safety compliance, regulatory cooperation. 8. Poloniex and so on.

Sending mail using PHP and SMTP can be achieved through the PHPMailer library. 1) Install and configure PHPMailer, 2) Set SMTP server details, 3) Define the email content, 4) Send emails and handle errors. Use this method to ensure the reliability and security of emails.

Binance, as the world's leading cryptocurrency trading platform, provides a variety of ways for users to trade and manage assets easily. Among them, Binance Mobile APP is one of the tools chosen by many users. The following details the download and use of Binance's official Android APP.

The world's leading cryptocurrency trading platform is famous for its efficient, secure and diverse trading services. Whether you are an experienced trader or a newbie into the cryptocurrency market, Binance has the tools and resources you need. Through Binance web version, users can easily access the trading platform without downloading any applications and conduct trading operations directly through the browser. This article will introduce in detail how to enter the Binance Binance Exchange web version and provide some practical trading tips and precautions.

A world-renowned digital currency trading platform, established in 2014, is committed to providing users with safe and convenient digital asset trading services. As an international exchange, Yiou supports the transaction of a variety of mainstream and niche digital currencies, attracting users from all over the world. Whether newbies or experienced traders, you can find trading tools and services that suit you on the Yiou platform.
