Detailed explanation of PHP performance optimization

The illustration shows 100 concurrency, requesting the target address 1000 times

carry out testing

The two most important parameters: Requests per second: Number of requests accepted per second, here 101 requests are received per second

　　　　　Time per request: How long a request takes, here is 9 milliseconds

##The bigger the first parameter, the better, The smaller the two parameters, the better

Optimization method: Language-level performance optimization 1

PHP code execution process:

The PHP code is scanned line by line through the zend engine and becomes a syntax that the zend engine can understand. It is transcoded and parsed into Opcodes and output after execution

If you use more built-in functions, the scanning and understanding time will be much faster, there will be fewer Opcodes, and the execution will be faster

Optimization method: language-level performance optimization 2

Optimization method: Language-level performance optimization 3

Test

##time php file name can determine the execution time When, focus on the user value, that is, 24 milliseconds

Optimization method language-level performance optimization 4

#Optimization method language-level performance optimization 5

#Optimization method language-level performance optimization 6

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#Optimization method: Language-level performance optimization 7

#It would be better to change it like this

## Optimization method language-level performance optimization 8

Optimization method language level Performance Optimization 9

Optimization method surroundings Problem performance optimization

#Optimization Method Peripheral Issues Performance Optimization 1 Common PHP scenario overhead order: read and write memory<

#Optimization method: Peripheral problem performance optimization 2

Peripheral optimization method Problem performance optimization 3

Optimization method: Peripheral problem performance optimization 4

Optimization Method Peripheral Issues Performance Optimization 5

#Parallel to serial

##Optimization Method Peripheral Issues Performance Optimization 6

#xhprof tool analyzes PHP performance

##This command can check whether the software is installed

Use the icon:

The ultimate solution to PHP performance bottleneck

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