POV-Ray : Newsgroups : povray.unix : Linux version is slower than windows version? : Re: Linux version is slower than windows version? Server Time
28 Jul 2024 10:14:41 EDT (-0400)
  Re: Linux version is slower than windows version?  
From: Mark Wagner
Date: 31 Jul 2002 00:27:33
Message: <pan.2002.07.31.04.26.56.185250.230@gte.net>
On Tue, 30 Jul 2002 11:10:36 -0400, Sebastian H. quoth:

> Hi there
> 
> I just compared the rendering speed of the official windows and linux
> version of POV3.5 and got the very strage result that the linux version
> takes the double amount of time (2.11x) the windows version needs to
> render the benchmark scene (scenes/advanced).

> I use an Athlon900Mhz with 312M Ram
> Windows 98SE
> SuSE Linux 8.0 (Kernel 2.4.18 is this important???)

> My question
> Does anyone has similar problems so it is in the binaries or is it just
> me and my sytem?

Yes, it's a very real effect.  I got 10 seconds to render Skyvase under
Windows, and 24 seconds under Linux.  The reason for this is the
different compilers used: in the Windows version, the compiler produced
several versions of parts of the code, each version optimized for a
different CPU.  This gives a larger but faster binary than the Linux
compiler, which appears to have optimized for a generic x86 processor.

-- 
Mark


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