Table of Contents
What is the appropriate allocation unit size? Answer:
Windows disk related issues
Home Computer Tutorials Troubleshooting What does allocation unit size mean?

What does allocation unit size mean?

Feb 01, 2024 pm 04:42 PM
win10 win10 system

The allocation unit size refers to the size of the memory block allocated to each object or data structure in computer memory management. It is an adjustment made to optimize memory utilization and improve program performance. In PHP, allocation unit size is very important for memory management and garbage collection. It determines the memory size occupied by each variable or object. If it is too small, it may cause memory fragmentation, and if it is too large, it will waste memory resources. Therefore, understanding and setting the appropriate allocation unit size is crucial for performance optimization of PHP programs. PHP editor Banana will introduce the concept of allocation unit size and its application in PHP in detail.

What does allocation unit size mean?

What is the appropriate allocation unit size? Answer:

Answer: The allocation unit size means the system’s allocation of disks and various mobile storage devices. The smallest unit for reading and writing.

The larger the allocation unit size, the faster the read and write speed of the disk.

Generally speaking, the smaller the allocation unit, the more space it saves. The larger the allocation unit, the more time it saves reading, but it wastes space.

It seems that smaller allocation units can save space. In fact, this is not the case.

The more blocks a file is divided into, especially when these storage units are scattered, the data has just been read. Some time will be wasted. You can imagine that time is wasted when the magnetic head is struggling to move the disk for bit by bit of data.

Therefore, I recommend that you keep the system's default allocation unit size.

What does allocation unit size mean?

Allocation unit sizes, you will find 4096 bytes (4K), 8192 bytes (8K), 16K, 32K, 64K. Which size to choose depends on the application. When installing applications with a lot of small files,

such as common system areas and U disks, it is best to choose 4K size to save space. For storage purposes, especially for applications that contain a large number of large video files such as movies, it is better to choose 32K or 64K, which can increase the reading speed.

What does allocation unit size mean?

For example, let’s see if you can understand

The floor area of ​​your home = partition capacity

Your home plans to lay floor tiles. It is equal to the allocated unit size

Both large-sized and small-sized tiles can cover your home, so what is the difference between large and small?

The disk does not write files one by one, it is divided into countless grids. A file is continuously written on the disk. In the last grid where the file was written, no matter whether there is still space in this grid, if the file is changed, a new file will be written in another grid.

Small size does not waste disk, space utilization is high, speed is slower, large size is fast, but space is easily wasted

win10 system c drive How suitable>>>

win10 disk partition tutorial>>>

The default installation path of win10 software is C drive>>>

When installing win10, windows can only be installed to GPT disk>>>

The above is the detailed content of What does allocation unit size mean?. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

System Restore prompts that you must enable system protection on this drive System Restore prompts that you must enable system protection on this drive Jun 19, 2024 pm 12:23 PM

System Restore prompts that you must enable system protection on this drive

What should I do if win10 does not switch users? Win10 login interface does not have the option to switch users. Solution What should I do if win10 does not switch users? Win10 login interface does not have the option to switch users. Solution Jun 25, 2024 pm 05:21 PM

What should I do if win10 does not switch users? Win10 login interface does not have the option to switch users. Solution

How to restore the default wallpaper in win10? One trick to quickly restore the default wallpaper in Windows 10 system How to restore the default wallpaper in win10? One trick to quickly restore the default wallpaper in Windows 10 system Jun 02, 2024 pm 02:07 PM

How to restore the default wallpaper in win10? One trick to quickly restore the default wallpaper in Windows 10 system

How to permanently turn off real-time protection in win10? How to disable real-time protection function in win10 computer 0 How to permanently turn off real-time protection in win10? How to disable real-time protection function in win10 computer 0 Jun 05, 2024 pm 09:46 PM

How to permanently turn off real-time protection in win10? How to disable real-time protection function in win10 computer 0

Windows cannot start the Windows Audio service Error 0x80070005 Windows cannot start the Windows Audio service Error 0x80070005 Jun 19, 2024 pm 01:08 PM

Windows cannot start the Windows Audio service Error 0x80070005

What should I do if Win10 takes a screenshot and crashes? How to solve the problem of Win10 flashing and then disappearing after taking a screenshot? What should I do if Win10 takes a screenshot and crashes? How to solve the problem of Win10 flashing and then disappearing after taking a screenshot? Jun 02, 2024 pm 12:48 PM

What should I do if Win10 takes a screenshot and crashes? How to solve the problem of Win10 flashing and then disappearing after taking a screenshot?

What to do if the Win10 Task Manager crashes? How to fix the Win10 Task Manager crash? What to do if the Win10 Task Manager crashes? How to fix the Win10 Task Manager crash? Jun 25, 2024 pm 04:31 PM

What to do if the Win10 Task Manager crashes? How to fix the Win10 Task Manager crash?

What should I do if there are no pop-up reminders for calendar events in Win10? How to recover if calendar event reminders are gone in Win10 What should I do if there are no pop-up reminders for calendar events in Win10? How to recover if calendar event reminders are gone in Win10 Jun 09, 2024 pm 02:52 PM

What should I do if there are no pop-up reminders for calendar events in Win10? How to recover if calendar event reminders are gone in Win10

See all articles