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From: Pete Zaitcev <zaitcev@redhat.com>
To: xen-devel@lists.xensource.com
Subject: Hyperthreading
Date: Mon, 29 May 2006 15:22:31 -0700	[thread overview]
Message-ID: <20060529152231.bc0cffdc.zaitcev@redhat.com> (raw)

Hi, All:

Does the guest OS need to detect hyperthreading? One would think that
the hypervisor decides what to schedule on what CPU, and the job of
the guest is not to be too smart for its own good. So, my first
reaction was to comment detect_ht() altogether.

Fedora Core 5 has the code in detect_ht(), though I have no idea what
the results of this are on HT CPUs, if they match the reality.

Thanks,
-- Pete

             reply	other threads:[~2006-05-29 22:22 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-05-29 22:22 Pete Zaitcev [this message]
2006-05-30  7:13 ` Hyperthreading Keir Fraser
2006-05-30  8:18 ` Hyperthreading Christian Limpach
  -- strict thread matches above, loose matches on Subject: below --
2003-11-25  9:44 hyperthreading Gábor Lénárt
2003-11-25  9:48 ` hyperthreading Emiliano 'AlberT' Gabrielli
2003-11-25 10:05   ` hyperthreading Gábor Lénárt
2003-11-25 10:16     ` hyperthreading Arjan van de Ven
2003-11-25 10:32     ` hyperthreading Måns Rullgård
2003-11-25 10:45       ` hyperthreading Mikael Pettersson
2003-11-29 13:29   ` hyperthreading Bill Davidsen
2003-12-01 10:53     ` hyperthreading Emiliano 'AlberT' Gabrielli
2003-11-25 10:22 ` hyperthreading Karl Pitrich
2002-08-22 12:58 Hyperthreading Nir Soffer
2002-08-22 14:30 ` Hyperthreading Hugh Dickins
2002-08-22  9:15 Hyperthreading Marc Dietrich
2002-08-22 14:06 ` Hyperthreading Hugh Dickins
2002-08-22 14:36   ` Hyperthreading Marc Dietrich
2002-08-21 22:56 Hyperthreading Nakajima, Jun
2002-08-21 23:45 ` Hyperthreading Alan Cox
2002-08-21 11:32 Hyperthreading Reed, Timothy A
2002-08-21 13:48 ` Hyperthreading James Bourne
2002-08-21 17:33   ` Hyperthreading Hugh Dickins
2002-08-21 19:34     ` Hyperthreading James Bourne
2002-08-21 21:16       ` Hyperthreading Kelsey Hudson
2002-08-21 21:55         ` Hyperthreading Banai Zoltan
2002-08-22  8:05           ` Hyperthreading venom
2002-08-26 19:00           ` Hyperthreading Kelsey Hudson
2002-08-22  8:00         ` Hyperthreading venom
2002-08-23  7:28     ` Hyperthreading Gilad Ben-Yossef
2002-08-23  8:10       ` Hyperthreading Hugh Dickins
2002-08-23  8:27         ` Hyperthreading Alan Cox
2002-08-23  8:12       ` Hyperthreading venom
2002-04-18  1:52 Hyperthreading Holzrichter, Bruce
2002-04-17 20:34 Hyperthreading Holzrichter, Bruce
2002-04-17 22:48 ` Hyperthreading Martin J. Bligh
2002-04-18  1:21   ` Hyperthreading James Bourne
2002-04-17 20:02 SMP P4 APIC/interrupt balancing James Bourne
2002-04-17 21:10 ` Hyperthreading Martin J. Bligh
2002-04-17 20:15   ` Hyperthreading Robert Love
2002-04-17 20:23     ` Hyperthreading Dave Jones
2002-04-17 21:24     ` Hyperthreading Jeff V. Merkey
2002-04-17 20:25   ` Hyperthreading James Bourne
2002-04-17 21:26   ` Hyperthreading Jeff V. Merkey
2002-04-18  0:31     ` Hyperthreading Martin J. Bligh
2002-04-18  4:50       ` Hyperthreading Jeff V. Merkey
2002-04-17 22:12   ` Hyperthreading Alan Cox

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