Reasons for improved performance of php7
Summary of the reasons for PHP7 performance improvement:
1. The structure for storing variables becomes smaller and the members in the structure are shared as much as possible. Memory space, reduce references, thus reducing memory usage and improving variable operation speed.
2. Changes to the string structure. The string information and data itself were originally stored in two independent memory blocks. PHP7 tries to store them in the same memory block, which improves the CPU cache hit rate.
3. Changes in the array structure. Array elements and hash mapping tables will be stored in multiple memory blocks in php5. php7 tries to allocate them in the same block of memory, reducing memory usage and improving cpu cache. Hit rate.
4. The function calling mechanism has been improved. By optimizing the parameter transfer link, some instruction operations have been reduced and execution efficiency has been improved.
Recommended tutorial: PHP video tutorial
The above is the detailed content of Reasons for improved performance of php7. For more information, please follow other related articles on the PHP Chinese website!
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
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
1377
52
What is the reason why screencasting fails? 'A must-read for newbies: How to solve the problem of unsuccessful wireless screencasting connection'
Feb 07, 2024 pm 05:03 PM
Why does wireless screencasting fail to connect? Some friends have reported that the connection fails when using wireless screen mirroring. What is going on? What should I do if the wireless screen mirroring connection fails? Please confirm whether your computer, TV and mobile phone are connected to the same WiFi network. Screen mirroring software requires devices to be on the same network to work properly, and Quick Screen Mirroring is no exception. Therefore, please quickly check your network settings. It is important to determine whether the screen mirroring function is supported. Smart TVs and mobile phones usually support DLNA or AirPlay functionality. If the screencast function is not supported, screencasting will not be possible. Confirm whether the device is connected correctly: There may be multiple devices under the same WiFi. Make sure you are connecting to the device you want to share the screen with. 4. Ensure that the network
What causes WPS Office to be unable to start a print job?
Mar 20, 2024 am 09:52 AM
When connecting a printer to a local area network and starting a print job, some minor problems may occur. For example, the problem "wpsoffice cannot start the print job..." occasionally occurs, resulting in the inability to print out files, etc., delaying our work and study, and causing a bad impact. , let me tell you how to solve the problem that wpsoffice cannot start the print job? Of course, you can upgrade the software or upgrade the driver to solve the problem, but this will take you a long time. Below I will give you a solution that can be solved in minutes. First of all, I noticed that wpsoffice cannot start the print job, resulting in the inability to print. To solve this problem, we need to investigate one by one. Also, make sure the printer is powered on and connected. Generally, abnormal connection will cause
Comprehensive Guide to PHP 500 Errors: Causes, Diagnosis and Fixes
Mar 22, 2024 pm 12:45 PM
A Comprehensive Guide to PHP 500 Errors: Causes, Diagnosis, and Fixes During PHP development, we often encounter errors with HTTP status code 500. This error is usually called "500InternalServerError", which means that some unknown errors occurred while processing the request on the server side. In this article, we will explore the common causes of PHP500 errors, how to diagnose them, and how to fix them, and provide specific code examples for reference. Common causes of 1.500 errors 1.
Is the performance of RTX5090 significantly improved?
Mar 05, 2024 pm 06:16 PM
Many users are curious about the next-generation brand new RTX5090 graphics card. They don’t know how much the performance of this graphics card has been improved compared to the previous generation. Judging from the current information, the overall performance of this graphics card is still very good. Is the performance improvement of RTX5090 obvious? Answer: It is still very obvious. 1. This graphics card has an acceleration frequency beyond the limit, up to 3GHz, and is also equipped with 192 streaming multiprocessors (SM), which may even generate up to 520W of power. 2. According to the latest news from RedGamingTech, NVIDIARTX5090 is expected to exceed the 3GHz clock frequency, which will undoubtedly play a greater role in performing difficult graphics operations and calculations, providing smoother and more realistic games.
Why is Apple mobile phone charging so slow?
Mar 08, 2024 pm 06:28 PM
Some users may encounter slow charging speeds when using Apple phones. There are many reasons for this problem. It may be caused by low power of the charging device, device failure, problems with the USB interface of the mobile phone, or even battery aging and other factors. Why does Apple mobile phone charge very slowly? Answer: charging equipment problem, mobile phone hardware problem, mobile phone system problem. 1. When users use charging equipment with relatively low power, the charging speed of the mobile phone will be very slow. 2. Using third-party inferior chargers or charging cables will also cause slow charging. 3. It is recommended that users use the official original charger, or replace it with a regular certified high-power charger. 4. There is a problem with the user’s mobile phone hardware. For example, the USB interface of the mobile phone cannot be contacted.
Revealing the root causes of win11 blue screen
Jan 04, 2024 pm 05:32 PM
I believe many friends have encountered the problem of system blue screen, but I don’t know what is the cause of win11 blue screen. In fact, there are many reasons for system blue screen, and we can investigate and solve them in order. Reasons for win11 blue screen: 1. Insufficient memory 1. It may occur when running too many software or the game consumes too much memory. 2. Especially now there is a memory overflow bug in win11, so it is very likely to be encountered. 3. At this time, you can try to set up virtual memory to solve the problem, but the best way is to upgrade the memory module. 2. CPU overclocking and overheating 1. The causes of CPU problems are actually similar to those of memory. 2. It usually occurs when using post-processing, modeling and other software, or when playing large-scale games. 3. If the CPU consumption is too high, a blue screen will appear.
Why does win11 shut down automatically?
Jan 01, 2024 pm 11:39 PM
Recently, a friend encountered the problem of Win11 automatically shutting down after updating the system. In many cases, it happens when playing games. I don’t know what caused it. In fact, this may be caused by insufficient computer configuration or system failure. Let’s take a look at the causes and solutions. Why does win11 automatically shut down? 1. Insufficient configuration 1. Windows 11 system has higher CPU and memory requirements than Windows 10. 2. Especially when running large-scale games and other tasks, it is very easy to automatically shut down. 3. Users can try to restore the usage status before automatic shutdown by right-clicking the start menu icon and opening the "Task Manager" page. 4. Let’s check the CPU, memory, and disk on this page.
Reasons and analysis of win10 driver installation failure
Jan 02, 2024 pm 04:57 PM
Some friends encountered the problem of installation failure when installing Windows 10 drivers, but they did not know the cause of the failure or how to solve it. There are several different reasons for this problem. Please follow me to find out below. Reasons why win10 driver installation fails: 1. System version Currently, Windows 10 system already has the function of automatically installing drivers. The introduction of this feature eliminates the need for users to manually search and install drivers when installing the system. The system will automatically detect and install appropriate drivers, providing a more convenient experience. If your driver installation fails, one solution is to try updating your system. This may fix some system-related issues, allowing the driver to
