Gentoo Archives: gentoo-amd64

From: Duncan <1i5t5.duncan@×××.net>
To: gentoo-amd64@l.g.o
Subject: [gentoo-amd64] Re: Hyper-threading an AMD64 3800+
Date: Thu, 11 Jun 2009 12:41:50
Message-Id: pan.2009.06.11.12.41.17@cox.net
In Reply to: [gentoo-amd64] Re: Hyper-threading an AMD64 3800+ by Nikos Chantziaras
1 Nikos Chantziaras <realnc@×××××.de> posted h0qlib$fs8$1@×××××××××.org,
2 excerpted below, on Thu, 11 Jun 2009 13:16:45 +0300:
3
4 > Intel re-introduced HyperThreading with Core i7 a while back.
5
6 Well, if you'd continued your quote...
7
8 >> That's where we are today. On a modern CPU, hyper-threading provides
9 >> very little real performance gain, one that actually may be a loss if
10 >> one considers what else that same transistor budget could have
11 >> otherwise been used for, but the market, once programmed for it, now
12 >> continues to demand it, so Intel continues to provide it.
13
14 IOW, when I said
15
16 >> Happily Intel has moved beyond that stage now,
17
18 "That stage" referred to the old netburst architecture where hyper-
19 threading originally became popular, not hyper-threading itself, which
20 they continue to offer, now more due to demand than for any technical
21 reason.
22
23 --
24 Duncan - List replies preferred. No HTML msgs.
25 "Every nonfree program has a lord, a master --
26 and if you use the program, he is your master." Richard Stallman