From: Alan <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Arjan van de Ven <arjan@infradead.org>,
Ben Collins <ben.collins@ubuntu.com>, Pavel Machek <pavel@ucw.cz>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/4] [x86] Add command line option to enable/disable hyper-threading.
Date: Fri, 1 Dec 2006 16:56:38 +0000 [thread overview]
Message-ID: <20061201165638.7d5f1c4e@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.64.0612010815510.3695@woody.osdl.org>
> So I think people have blown those SSL timing attacks _way_ out of
> proportion, just because it sounds technical and cool.
>
> Besides, most of the time you can disable HT in the BIOS, which is better
> anyway if you don't want it.
Agreed - but the SSL thing is an irrelevance. The main reason for
disabling HT (especially on a single core CPU) is because a lot of
workloads run faster with HT *off*.
Alan
next prev parent reply other threads:[~2006-12-01 16:50 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-30 4:26 Ubuntu patch sync for 2.6.20 Ben Collins
2006-11-30 4:26 ` Ben Collins
2006-11-30 4:26 ` Ben Collins
2006-11-30 4:26 ` [PATCH 1/4] [x86] Add command line option to enable/disable hyper-threading Ben Collins
2006-11-30 11:06 ` Alan
2006-11-30 18:08 ` Siddha, Suresh B
2006-12-01 13:29 ` Pavel Machek
2006-12-01 13:41 ` Ben Collins
2006-12-01 14:32 ` Arjan van de Ven
2006-12-01 15:09 ` Ben Collins
2006-12-01 16:10 ` Arjan van de Ven
2006-12-01 16:14 ` Ben Collins
2006-12-01 16:20 ` Linus Torvalds
2006-12-01 16:56 ` Alan [this message]
2006-12-01 17:13 ` Mark Rustad
2006-11-30 4:26 ` [PATCH 2/4] [APIC] Allow disabling of UP APIC/IO-APIC by default, with command line option to turn it on Ben Collins
2006-12-01 8:39 ` Ingo Molnar
2006-12-01 20:56 ` Ben Collins
2006-12-02 8:56 ` Ingo Molnar
2006-11-30 4:26 ` [PATCH 3/4] [ATM] Add CPPFLAGS to byteorder.h check Ben Collins
2006-11-30 4:26 ` [PATCH 4/4] [HVCS] Select HVC_CONSOLE if HVCS is enabled Ben Collins
2006-11-30 12:32 ` Roman Zippel
2006-11-30 15:04 ` Ben Collins
-- strict thread matches above, loose matches on Subject: below --
2006-12-07 22:50 [PATCH 1/4] [x86] Add command line option to enable/disable hyper-threading Peter Cordes
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