From: "M. Edward (Ed) Borasky" <znmeb@...>
Date: 2006-10-27T08:47:35+09:00
Subject: Re: simple math question

Rick DeNatale wrote:

> Thanks guys, I figured that it was something like that. I looked at
> the source code for benchmark and it's just getting Process.times
> before and after the block.
> 
> That said, I wonder what these presumably purely computational blocks
> are doing in the kernel at all.  In a way that's why I wasn't sure, in
> the context of ruby benchmarking I was sort of hoping that it was
> differentiating between library C code and ruby code, but it really
> isn't.
> 
> I guess that the system time must be spent in something like process
> switching overhead, yes?

Well ... maybe. What OS are you running? If it's any flavor of Linux, I
can point you at some higher-resolution tools. And remind me ... what
was the code supposed to be doing?