what opcode

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Performance analysis and experiment of PHP--a macroscopic analysis of performance

"Editor's note" before, read a lot about PHP performance analysis of the article, but the writing is a rule, and these rules do not have context, there is no clear experiment to reflect the advantages of these rules, while the discussion also

The principle of the PHP cache Accelerator for lamp and LNMP environments

LAMP Environment PHP how the Cache accelerator works  lamp=linux+apache+mysql+php1. Apache receives the client's PHP program request and filters it according to the rules.2.Apache sends PHP program request to PHP processing module libphp5.so.The

Nodejs implementation of WebSocket data receiving and sending

In the last year, wrote a blog about WebSocket: http://www.cnblogs.com/axes/p/3586132.html, mainly with the help of Nodejs-websocket this plugin, Later also used Socket.io do some demo, but, these are with the help of others encapsulation good

PHP Performance Analysis and Experiment-macro performance analysis (1)

PHP Performance Analysis and Experiment-macro performance analysis (1) Editor's note]I have read a lot of articles on PHP performance analysis before, but I have written a single rule, and these rules have no context, there is no clear experiment

Go How a Java Virtual machine determines the type of a variable

"Original" https://www.toutiao.com/i6591766777745637891/ OverviewAs we all know, Java supports platform independence, security, and network mobility. The Java platform, which consists of Java virtual machines and Java core classes, provides a

WebSocket and sockets

Original: WebSocket and socketWebSocket and socketsTags:websocket and sockets Introduction: Many friends want to know the connection and the difference between websocket and socket, here is what you want First to a picture collected

PHP autoload Mechanism detailed _android

PHP before the Magic Function __autoload () method appears, if you want to instantiate 100 objects in a program file, you must include 100 class files with include or require, or you could define these 100 classes in the same class file-- I believe

An in-depth understanding of PHP AutoLoad and spl_autoload automatic loading mechanism _php instance

PHP AutoLoad Mechanism detailed(1) Overview of autoload mechanismWhen developing a system using the OO pattern in PHP, it is often customary to store implementations of each class in a separate file, which makes it easy to reuse classes and

The compilation and execution mechanism of lambda expression in JDK8 by byte code analysis __JVM

About lambda bytecode related articles, very early on wanted to write, through the use of Java8 lambda expression and Rxjava responsive programming framework, so that the code more concise and easy to maintain, more convenient way to call. This

A detailed analysis of the autoload mechanism in PHP

__autoload implementation of automatic loading, but due to the introduction of a multi-class library, __autoload Maintenance will be complex, the introduction of SPL_AOTOLOAD,SPL implementation of an automatic loading function list of manual

"Translator" uses Python to write the virtual machine interpreter

Original address: Making a simple VM interpreter in PythonUpdate: I made minor changes to the code according to your comments. Thanks to Robin-gvx, bs4h and Dagur, see here for specific codesThe stack machine itself does not have any registers, it

Monitor and manage the Xcache status

Xcache is a lot of Opcode caches. In many cases, we can use this cache to make script execution more efficient, it allows the script engine not to compile and execute each time. After a compilation, it can cache Opcode and directly execute it,

Cache-in which cases can yii load yiilite. php?

Yii authority guidelines say that when apc cache is enabled, yiilite. php can be loaded to improve performance. I have the following questions: 1. When the apc cache is enabled, is the reason why yiilite. php can improve performance because it

Analyze how empty and isset functions are implemented in the PHP kernel.

Analyze how empty and isset functions are implemented in the PHP kernel. #### I mentioned this question on oschina: 但一直没收到合适的答案,所以还是自己下功夫梳理了一下,如果有错误的地方,欢迎交流。通常的函数是通过zend_function(xxx) 这种宏定义来实现的,这个规范很好理解,也很容易读懂源码。但empty(), isset()

Tuning php_php Tutorials

Apache is a highly configurable software. It has a lot of features, but each one is expensive. To some extent, tuning Apache is the proper way to allocate resources, and it involves simplifying the configuration to include only the necessary content.

How PHP finds the object that is being instantiated

For example, I have a test object, the first instance of the object, and then the object after the instantiation, this time why also find the object? $test = new Test();echo $test->run();class Test{ public function run(){ return 'run---';

How to display sap screen to other user machines and accept control from other users

Report zgan_show message-id zz. Tables: v_username,Sscrfields. Data: Begin of usr_tabl occurs 10.Include structure uinfo.Data: End of usr_tabl. Data: opcode Type X,Slave_mode Type X,Loc_utid like usr_tabl-tid. Constants: c_fcode_slon like sy-ucomm

How to inline ASM in C (GCC)

How to inline ASM in C (GCC) I have tested it. This is a helloworld. It prints Hello World on the screen and runs normally:Code:# Include # Include Psp_module_info ("Hello World", 0, 1, 1 ); Int main (void ){Char * MSG = "Hello world! /N

Assemble APC (alternative PHP Cache) to improve PHP parsing speed

Install APC (alternative PHP Cache) to improve PHP parsing speed This article refers to "high-performance PHP development" to make the next record PHP must perform the 5 steps required, whether from the command line or from a WEB server. The Zend

centos6.9 Compiling and installing php5.6 (based on PHP-FPM mode)

Write in frontCENTOS6 The default installation of httpd2.2 is not supported fcgi mode, then how to implement the FPM mode on 6, here need to compile the installation httpd2.4 (see the previous blog post).Premise: Compiling and installing

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