Re: Linux vs. Windows performance.

From: Toby Brown <toby_brown_at_optusnet.com.au>
Date: 14 Feb 2004 21:34:06 -0800
Message-ID: <2a84f50c.0402142134.2716d4a8@posting.google.com>

norwoodthree_at_my-deja.com (NorwoodThree) wrote in message news:<ba03e2c.0402141225.413103b3_at_posting.google.com>...
> Something else to consider-
>
> On the Linux side, I know that if you use Dell equipment and a Pentium
> 4 processor, you can enable hyper-threading for the processor in the
> BIOS. This essentially gives you 2 processors in one. It basically
> is a virtual 2 processor configuration.
>
> Not sure if Windows takes advantages of the HyperThreading, but Linux
> and Oracle do. And it is fully supported.

Is hyper-threading really a performance advantage?

I was under the impression that hyper-threading was more of a concurrency advantage (a clever technique to provide better concurrency). I mean, taking your above example, you really only have 1 physical processor, therfore all processes will execute on it serially, regardless of whether the O/S can be "fooled" into believing that it is scheduling on 2 processors.

Or am I missing something about hyper-threading and it's performance implications? Received on Sat Feb 14 2004 - 23:34:06 CST