License & Registration
Bandizip License Policy
How to register Bandizip
In-depth Comparison
How to receive a receipt
Refund Policy
Exclusive features of Bandizip Paid Edition
How to use the Password Manager
How to use Repair Archive
How to use the Password Recovery
How to preview images in an archive with Bandizip
How to use Antimalware Scan on Archive
Features & Technical Terms
How to use Extract Here (Smart)
How to split a large file into smaller files with Bandizip
ZIP 格式的 Unicode 檔名
ZIPX archive format
7z archive format
Solid Compression
How to open RAR files
How to open ALZ and EGG files
How to use Fast Drag and Drop
多核
How to use High-speed Archiving
How to modify an archive without decompression
How to open a file in an archive without extraction
How to edit a file and save it in an archive directly
How to set a password for an archive
How to encrypt filenames in archives
How to move files to Recycle Bin (Trash) when deleting
Compress a file even when the file is used by another process
How to prevent data corruption by safe backup
How to test an archive
How to copy Zone.Identifier information for malware protection
How to change the theme color for Bandizip
How to export and import Bandizip settings
How to uninstall Bandizip
Update types
命令列參數
Bandizip Setup Command Line Parameters
介紹了Windows 10上ARM
Troubleshooting
How to troubleshoot when I can’t install or register Bandizip
How to troubleshoot when I can’t access the email account that I used to buy Bandizip
無法正常運行代碼頁自動檢測
How to troubleshoot when Bandizip opens archive files automatically when I download them on the browser
How to troubleshoot when an icon for archives doesn’t appear properly in the File Explorer
How to troubleshoot when a right-click menu (context menu) for Bandizip doesn’t appear
How to troubleshoot when a right-click menu (context menu) for Bandizip isn’t displayed properly
How to troubleshoot when Error 22 occurs and Mac Finder on Catalina can’t extract ZIP archive
How to troubleshoot when Mac Finder can’t extract an encrypted ZIP file
How to use a non-alphabetic language character in a password
How to test multiple archives
How to attach an executable file (.exe) in Gmail
How to troubleshoot “The parameter is incorrect.”
How to troubleshoot when I can’t open an archive in a network mapped drive
How to troubleshoot when a split archive can’t be decompressed
How to troubleshoot when bdzsfx.x86.sfx is diagnosed as malware
How to run Bandizip on Linux using Wine

〈 說明

多核

什麼是多核心處理器?

CPU的處理單元稱為核心,具有兩個或更多個核心的CPU稱為多核心CPU。 早期,個人電腦採用配備一個核心的CPU,但近期甚至於移動CPU都會搭載一個多核CPU。所以是否支持多核CPU是目前評估軟件性能的重要因素。

多核心壓縮

Bandizip支持多核心壓縮。由於數據壓縮需要大量的CPU操作,因此使用多核並行壓縮有助於提升處理速度。



例如,Bandizip可以使用4核8線程CPU壓縮獲得6倍性能提升,使用8核16線程CPU可以獲得13倍性能提升。

這些圖片顯示了支持多核的Bandizip和僅使用單核的Finder的處理性能比較。




為什麼不在提取過程中使用多核技術?

您可以看到在使用Bandizip進行壓縮時,CPU使用率會逐步升至最大,但解壓縮時CPU使用率並不高。

這是由數據壓縮算法造成的。大多數數據壓縮算法是使用引用前端數據的方法實現的。基於這個特性,壓縮可以並行進行,但是提取很難實現為並行。

為什麼壓縮時CPU使用率不高?

另外,壓縮時可能會出現CPU利用率低的問題。壓縮操作將重複以下操作步驟。

讀取文件進行壓縮(原始硬盤驅動器)▶壓縮(CPU)▶寫入壓縮文件(目標硬盤驅動器)

通常情況下,壓縮是整個操作步驟中的瓶頸,所以CPU使用率很高。但是,在某些情況下,如使用慢速介質(外部USB存儲器、網絡驅動器...),瓶頸不在與CPU,而是磁盤I/O,所以CPU利用率可能不高。

Note

  • 另外,即使壓縮大量小文件(小於100 KB),CPU載荷也可能不高。
  • 7zip supports multi-core compression when compressing your file(s) in ZIP format, but it works only for multiple files and not for a single file.