Subject: re: 32-bit packages
To: None <email@example.com>
From: matthew green <firstname.lastname@example.org>
Date: 01/08/2005 22:59:39
matthew green wrote:
> Just out of interest, is there a performance penalty on NetBSD when
> executing 32-bit binaries with 64-bit kernel, as opposed to native
> 64-bit binaries? What about Solaris, does it use the same principles
> when executing 32-bit binaries?
> every application is different. if you care about performance you
> need to actually measure 32 vs 64 bit. depending on the application
> either one can be a clear winner, or perhaps it makes no difference.
Sure, but I was thinking if you're running 64-bit kernel and execute
32-bit binary, does the OS need to use various emulation layers which
affect the performance?
there is a layer to convert 32 bit / 64 bit syscall arguments as required
but in my testing i can't notice it affecting performance.