[mythtv-users] What is a "dual core processor"?

Jeff Thurston jthurston at skyline-ats.com
Thu Dec 4 19:00:05 UTC 2008

Sorry for the top-post, I use Outlook :/

Hyperthreading has been described by many as "latency hiding".
I won't go into gory detail of what that means, but the simple answer is
"No." it is nothing close to dual-core. It was/is mostly a gimmick to get
around the poor performance of the early Pentium4 design.
For AV processing, hyperthreading could even hurt your performance.

-----Original Message-----
From: mythtv-users-bounces at mythtv.org
[mailto:mythtv-users-bounces at mythtv.org] On Behalf Of David Brodbeck
Sent: Thursday, December 04, 2008 10:52 AM
To: Discussion about mythtv
Subject: Re: [mythtv-users] What is a "dual core processor"?

Jim Carter wrote:
> Some or all Pentium 4's have hyperthreading, which means that one core can

> hop between two instruction streams.

Has anyone ever found this to be a benefit?  Every time I've tested
hyperthreading under real-world workloads, I've found it decreased
performance, so I now turn it off in the BIOS as a matter of course.

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