Opening words
This is a pure document. If you need it in the future, you can look it up at any time and use xhprof for analysis to facilitate code testing and comparative analysis (supports php7).
Recommended tutorial: "php tutorial"
Pre-build docker virtual test environment
docker run -it -p 80:80 -v /Users/xxx/Desktop/xhprof:/data phalcon /bin/bash复制代码
1. Install xhprof
support There are quite a lot of xhprof for php7. We use github.com/longxinH/xh... this project here.
1.1 Pull the project
git clone https://github.com/longxinH/xhprof.git复制代码
1.2 Install the project
cd xhprof/extension/ /usr/server/php7/bin/phpize ./configure --with-php-config=/usr/server/php7/bin/php-config make && make install复制代码
1.3 Add xhprof.so expansion
After execution, we need to introduce this so file Go to the php.ini configuration
View the php.ini file path
/usr/server/php7/bin/php --ini Configuration File (php.ini) Path: /usr/server/php7/etc Loaded Configuration File: /usr/server/php7/etc/php.ini Scan for additional .ini files in: /usr/server/php7/etc/php Additional .ini files parsed: (none)复制代码
Edit /usr/server/php7/etc/php.ini
[Xhprof] extension=xhprof.so xhprof.output_dir=/data/logs复制代码
Restart php-fpm that is Can.
2. The process of building a case using xhprof
We embed the following code in front of the logic to be monitored
\xhprof_enable(); ......$order = new OrderAdepter();$result = $order->getUserOrderByOrderNo(123); ......$xhprof_data = \xhprof_disable(); print_r($xhprof_data);复制代码
output:

We found that two functions in the xhprof extension were called, and the meaning of the output value
ct 表示 当前这个函数调用的次数,此案例都是1次 wt 表示 函数执行时间的耗时,单位为微秒复制代码
After seeing this, we found that the information we obtained was not very much , for example, we often also care about the occupied memory, cpu and other indicators.
\xhprof_enable( XHPROF_FLAGS_MEMORY +XHPROF_FLAGS_CPU +XHPROF_FLAGS_NO_BUILTINS );复制代码
output:

- # #XHPROF_FLAGS_MEMORY Statistical memory usage
- XHPROF_FLAGS_CPU Statistics cpu usage
- XHPROF_FLAGS_NO_BUILTINS The built-in functions are not counted. In this output, you can see that the functions in our expansion have been ignored.
We found that there are two output fields for counting memory usage, mu and pmu. mu represents the memory used (bytes), pmu represents the peak memory used (bytes)3. Chart xhprof Of course, we still hope that the form of the chart can be more intuitive Observe the performance bottleneck, let's see how to use it.3.1 At this time we need to use the xhprof_lib libraryWhen we download the xhprof source code, the directory already contains
\xhprof_enable(XHPROF_FLAGS_MEMORY + XHPROF_FLAGS_CPU+XHPROF_FLAGS_NO_BUILTINS); ......$order = new OrderAdepter();$result = $order->getUserOrderByOrderNo(123); ......$xhprof_data = \xhprof_disable(); include_once '/data/xhprof-master/xhprof_lib/utils/xhprof_lib.php'; include_once '/data/xhprof-master/xhprof_lib/utils/xhprof_runs.php';$xhprof_runs = new \XHProfRuns_Default();$run_id = $xhprof_runs->save_run($xhprof_data, 'your_project');echo $run_id; //output 5cbf25e21fe9b复制代码Execution prints out a string, which we can understand as a file identifier. We found that the save_run method was executed, so where was it saved?Do you remember another configuration when we introduced the xhprof.so extension?Yes, in xhprof.output_dir Under the configured path (you need to create the directory manually)

If you are interested, you can open it and take a look. Some of the things we analyzed are stored in it. Serialized object information.3.2 Configure a separate service to access our analysis results


I believe you now understand the role of our run_id and the project in save_runThe top part is an overview of the requested interface indicators, and the following is the specific execution of each calling function.
Meaning | |
---|---|
Call Number of times | ##Incl. Wall Time |
Excl. Wall Time | |
Incl. CPU | |
Excl. CPU | |
Incl.MemUse | |
Excl.MemUse | |
##Incl.PeakMemUse | |
Excl. PeakMemUse | |
3.3 [View Full Callgraph]如果查看调用流程需要安装 graphviz 图形库. 这里我们推荐手动安装 graphviz 2.24.0 这个版本(亲自踩坑,2.40不支持) yum -y install libtool-ltdl-develcd /data/graphviz-2.24.0 ./configure make make install复制代码 ![]()
4. 问题点我们在上面使用xhprof的时候发现了强依赖, 在代码中引入了 xhprof 安装包里的几个类. include_once '/data/xhprof-master/xhprof_lib/utils/xhprof_lib.php'; include_once '/data/xhprof-master/xhprof_lib/utils/xhprof_runs.php';复制代码 这里我们可以使用composer包引用来实现相同功能, 这里推荐引入 pbweb/xhprof 包。 5. 结束希望大家工作开心 |
The above is the detailed content of Use xhprof to parse in php7. For more information, please follow other related articles on the PHP Chinese website!

php把负数转为正整数的方法:1、使用abs()函数将负数转为正数,使用intval()函数对正数取整,转为正整数,语法“intval(abs($number))”;2、利用“~”位运算符将负数取反加一,语法“~$number + 1”。

实现方法:1、使用“sleep(延迟秒数)”语句,可延迟执行函数若干秒;2、使用“time_nanosleep(延迟秒数,延迟纳秒数)”语句,可延迟执行函数若干秒和纳秒;3、使用“time_sleep_until(time()+7)”语句。

php除以100保留两位小数的方法:1、利用“/”运算符进行除法运算,语法“数值 / 100”;2、使用“number_format(除法结果, 2)”或“sprintf("%.2f",除法结果)”语句进行四舍五入的处理值,并保留两位小数。

判断方法:1、使用“strtotime("年-月-日")”语句将给定的年月日转换为时间戳格式;2、用“date("z",时间戳)+1”语句计算指定时间戳是一年的第几天。date()返回的天数是从0开始计算的,因此真实天数需要在此基础上加1。

php判断有没有小数点的方法:1、使用“strpos(数字字符串,'.')”语法,如果返回小数点在字符串中第一次出现的位置,则有小数点;2、使用“strrpos(数字字符串,'.')”语句,如果返回小数点在字符串中最后一次出现的位置,则有。

php字符串有下标。在PHP中,下标不仅可以应用于数组和对象,还可应用于字符串,利用字符串的下标和中括号“[]”可以访问指定索引位置的字符,并对该字符进行读写,语法“字符串名[下标值]”;字符串的下标值(索引值)只能是整数类型,起始值为0。

方法:1、用“str_replace(" ","其他字符",$str)”语句,可将nbsp符替换为其他字符;2、用“preg_replace("/(\s|\ \;||\xc2\xa0)/","其他字符",$str)”语句。

在php中,可以使用substr()函数来读取字符串后几个字符,只需要将该函数的第二个参数设置为负值,第三个参数省略即可;语法为“substr(字符串,-n)”,表示读取从字符串结尾处向前数第n个字符开始,直到字符串结尾的全部字符。


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

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.

EditPlus Chinese cracked version
Small size, syntax highlighting, does not support code prompt function

Dreamweaver Mac version
Visual web development tools

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

VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
