On Aug 15, 2005, at 7:13 AM, Hans Petter Selasky wrote:

> I cannot find the article right now, but there was a comparison  
> between
> FreeBSD 5/6 and NetBSD, where NetBSD was found to be faster, and  
> then there
> was some disscussion whether this had to do with mutexes. And then  
> someone
> wrote that NetBSD did not use mutexes like on FreeBSD and that this  
> made the
> system faster. But someone else said that it was extra checking in  
> the kernel
> that made FreeBSD perform so bad in this comparison ...

Goes to show you can't always rely on armchair performance analysis.

-- thorpej