[NTLUG:Discuss] 2 Xeons look like 4

[Thomas Cameron]

----- Original Message ----- 
From: "Bishop, Cass" <cbishop at atxna.com>
To: "'NTLUG Discussion List'" <discuss at ntlug.org>
Sent: Tuesday, December 23, 2003 1:02 PM
Subject: [NTLUG:Discuss] 2 Xeons look like 4


> I have 2 Intel Xeon processors in my server.  When I run top it says there
> are 4 cpu's.  Any idea why?  I see this in RedHat 7.3 and RedHat
Enterprise
> Server 3.
>
> Cass
>
> _______________________________________________
> https://ntlug.org/mailman/listinfo/discuss
>

Welcome to the world of HyperThreading.  Basically each physical processor
runs two virtual instances of itself, in theory giving the computer more
oomf.  We use only HT procs at my job, and I love them.  It seems to work
pretty darned well.

Thomas