What is the effect of running Win2003 Std on a 4 processor box?

Giganews Newsgroups
Subject: What is the effect of running Win2003 Std on a 4 processor box?
Posted by:  Al (…@discussions.microsoft.com)
Date: Mon, 20 Mar 2006

Hi,

What is the effect of running Win2003 Std on a box with 4 processor (4
physical CPU). Will it "select" CPUs and only use those ones? Or will it use
all 4, but in a round-robin effect, so that only 2 CPU will be active at a
time?

The reason I'm asking is that SQL2000 is installed and by using a DBCC
command, I can see that SQL is using all 4 CPU (it looks like 8, because of
the HyperThreading). I was wondering if we are suffering a performance hit
because of the OS.

It could be that I have been misinformed, and that Win2003 Enterprise is the
actual OS.

Thanks in advance.

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