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From: Avi Kivity <avi-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
To: Marcelo Tosatti <marcelo-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org>
Cc: kvm-devel
	<kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	Alexander Graf <alex-r27SGEef+tmzQB+pC5nmwQ@public.gmane.org>,
	Andi Kleen <andi-Vw/NltI1exuRpAAqCnN02g@public.gmane.org>
Subject: Re: [RFC] fix VMX TSC synchronicity
Date: Sun, 20 Jan 2008 16:59:26 +0200	[thread overview]
Message-ID: <479361CE.4020003@qumranet.com> (raw)
In-Reply-To: <20080117184349.GA17843@dmt>

Marcelo Tosatti wrote:
> Avi, do you understand why C3 was causing the Windows SMP problems ?
>
>   

It may be that the latency was advertised as so low that Windows 
switched into C3 and back too often.

Also, the problem possibly wasn't SMP related but rather TPR related -- 
when the idle loop called acpi to do the mode switches, that caused many 
tpr hits.  Perhaps with a FlexPriority enabled processor it would work 
better.

-- 
error compiling committee.c: too many arguments to function


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  parent reply	other threads:[~2008-01-20 14:59 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-11 20:49 [RFC] fix VMX TSC synchronicity Marcelo Tosatti
2008-01-13 12:19 ` Avi Kivity
     [not found]   ` <478A01D1.7000402-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-14 16:06     ` Marcelo Tosatti
2008-01-14 20:46       ` Marcelo Tosatti
2008-01-15 14:59         ` Avi Kivity
2008-01-15 14:33       ` Avi Kivity
     [not found]         ` <478CC448.1030901-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-15 14:50           ` Alexander Graf
     [not found]             ` <478CC819.3040106-r27SGEef+tmzQB+pC5nmwQ@public.gmane.org>
2008-01-15 15:09               ` Avi Kivity
     [not found]                 ` <478CCCA9.2080300-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-15 16:42                   ` Alexander Graf
     [not found]                     ` <478CE277.9010109-r27SGEef+tmzQB+pC5nmwQ@public.gmane.org>
2008-01-15 17:46                       ` Avi Kivity
     [not found]                         ` <478CF186.5030304-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-15 18:29                           ` Amit Shah
2008-01-16  5:51                   ` Andi Kleen
     [not found]                     ` <p73ir1ul3ls.fsf-KvMlXPVkKihbpigZmTR7Iw@public.gmane.org>
2008-01-16  8:46                       ` Avi Kivity
     [not found]                         ` <478DC453.1000404-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-16 13:34                           ` Andi Kleen
     [not found]                             ` <478E08E5.2030507@qumranet.com>
     [not found]                               ` <478E08E5.2030507-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2008-01-16 13:54                                 ` Andi Kleen
     [not found]                                   ` <20080116135415.GA14664-qrUzlfsMFqo/4alezvVtWx2eb7JE58TQ@public.gmane.org>
2008-01-16 13:56                                     ` Avi Kivity
2008-01-17 18:43                                     ` Marcelo Tosatti
2008-01-17 18:56                                       ` Andi Kleen
2008-01-20 14:59                                       ` Avi Kivity [this message]
2008-05-04 15:40                                       ` Avi Kivity
2008-05-06 13:55                                         ` Avi Kivity
  -- strict thread matches above, loose matches on Subject: below --
2008-01-12  3:11 Will Trives
2008-01-12 12:28 ` Marcelo Tosatti
2008-01-12 13:48   ` Will Trives
2008-01-12 20:51     ` Avi Kivity

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