Ubuntu 8.04与XP SP3性能大比拼

　　现在有不少开源的跨平台软件存在，使得Linux和Windows下的软件性能有了可比性，Mohammed Saleh做了一个Ubuntu 8.04和Windows XP SP3下的软件性能对比。

　　测试的主要是多媒体性能和硬盘性能，前者主要是Blender、Avidemux等软件的性能测试，后者主要是采用命令行下的RAR和ClamAV，结果显示，XP在多媒体方面大幅超越Ubuntu，而Ubuntu在IO相关程序方面更有优势——尽管测试的时候Ubuntu是ATA硬盘而XP在SATA硬盘上。

　　两个操作系统都打上了最新的补丁。

　　另外他还写了一个脚本对比两者的多任务性能，结果Ubuntu大幅领先XP。

　　Test technical details:

　　ClamAV:
　　Engine version: 0.92.1
　　Known viruses: 288170
　　Single Task:
　　Scanned directories: 1035
　　Scanned files: 16297
　　Data scanned: 3708.96 MB
　　Multi-Task:
　　Scanned directories: 15
　　Scanned files: 171
　　Data scanned: 1387.55 MB
　　Avidemux 2.4.1
　　Test1: Converting 03:17 DV (MPEG2) clip to MP4 (x264 (2-pass, 1024kbps) /AAC)
　　Test2: Converting 05:32 MJPEG clip to MP4 (x264 (2-pass, 1024kbps) /AAC)
　　LAME 3.97
　　Encoding Test: 44:58 495MB WAV to VBR MP3
　　lame -V 0 -m j -q 0 -s 48 –vbr-new 1.wav 1.mp3
　　Decoding Test: 44:58 72MB MP3 256Kbps VBR to WAV
　　lame –decode b.mp3 decode.wav
　　Transcoding Test: 44:58 72MB MP3 256Kbps VBR to standard MP3
　　lame -h b.mp3 b2.mp3
　　RAR 3.71
　　Compression: RAR 1,516 items, totaling 565.2 MB
　　Decompression: UnRAR 481.7 MB archive
　　Blender 2.45:
　　Single Task: Rendering 25 frames of each one of sample files:
　　dolphin.blend
　　group-duplicate.blend
　　FPSTemplateLightMap.blend
　　Multi Task: Rendering 25 frames of sample file FPSTemplateLightMap.blend
　　GIMP 2.4.5:
　　Source Image: 2816×2112 JPEG image.
　　Single Task: Applying these filters with the default settings:
　　Filters>render>nature>IFS Fractal
　　Filters>render>Line Nova
　　Filters>render>Spyrogimp
　　Multi-Task: Applying this filter with the default settings:
　　Filters>render>nature>IFS Fractal
　　Misc:
　　Tests were run on fresh installs of Ubuntu 8.04 and Windows XP SP2 with SP3 
      on top with only latest updates, media codecs, hardware drivers and test 
      programs installed.
　　Desktop effects on both Windows XP and Ubuntu were ON.
　　nVIDIA-supplied VGA drivers on both (v175.16 for Windows XP and v169.12 on 
      Ubuntu)
　　Disabled Paging/Swapping on both Windows and Linux to limit disk IO effect on 
      CPU/RAM tests (RAR compression, GIMP, Blender, MP3 Encoding)
　　Data=Writeback Journaling on the EXT3 hard drive.
　　Disabled NTFS last-access time stamp on the NTFS hard drive.
　　All test read/wrote from/to the same hard disk partition: EXT3 for Linux and 
      NTFS for Windows
　　Each test was repeated 3 times and the avera