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From: Luca <kronos.it-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: "Ulrich Schreiner"
	<ulrich.schreiner-sZDnKEZIvs8b1SvskN2V4Q@public.gmane.org>
Cc: kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org,
	Avi Kivity <avik-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
Subject: Re: kvm very slow
Date: Tue, 7 Aug 2007 13:32:16 +0200	[thread overview]
Message-ID: <68676e00708070432i2e2ef765vb6283f750ca5e6dd@mail.gmail.com> (raw)
In-Reply-To: <1186479806.3370.22.camel@vaio>

On 8/7/07, Ulrich Schreiner <ulrich.schreiner-sZDnKEZIvs8b1SvskN2V4Q@public.gmane.org> wrote:
> Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a
> fatal
> error, but for better emulation accuracy either use a 2.6 host Linux
> kernel or
> type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.
>
> well i HAVE a 2.6kernel (2.6.22.1-41.fc7), but i cannot set
> dev.rtc.max-user-freq, i only can set the high precision event timer
>
> dev.hpet.max-user-freq = 1024

Known issue, it's unrelated to KVM. HPET is using the same IRQ as the
cmos RTC so only on of them can deliver the periodical interrupt. I
think that work to program the HPET in dont-break-other-stuff mode is
underway.

Luca

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  reply	other threads:[~2007-08-07 11:32 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-01  5:22 kvm very slow Ulrich Schreiner
2007-08-01 16:41 ` Avi Kivity
     [not found]   ` <46B0B7D0.9080203-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-08-01 19:45     ` Ulrich Schreiner
     [not found]       ` <46B0E2F0.1070701-sZDnKEZIvs8b1SvskN2V4Q@public.gmane.org>
2007-08-02  8:24         ` Avi Kivity
     [not found]           ` <46B194C5.5040508-atKUWr5tajBWk0Htik3J/w@public.gmane.org>
2007-08-02 19:31             ` Ulrich Schreiner
2007-08-07  7:20             ` Ulrich Schreiner
2007-08-07  7:44               ` Dor Laor
     [not found]                 ` <64F9B87B6B770947A9F8391472E032160D17A0EA-yEcIvxbTEBqsx+V+t5oei8rau4O3wl8o3fe8/T/H7NteoWH0uzbU5w@public.gmane.org>
2007-08-07  9:43                   ` Ulrich Schreiner
2007-08-07 11:32                     ` Luca [this message]
2007-08-07 11:51                     ` Dor Laor
     [not found]                       ` <64F9B87B6B770947A9F8391472E032160D17A197-yEcIvxbTEBqsx+V+t5oei8rau4O3wl8o3fe8/T/H7NteoWH0uzbU5w@public.gmane.org>
2007-08-07 12:08                         ` Luca
     [not found]                           ` <68676e00708070508w3d9e5ab8gd26263c44bf59f0d-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2007-08-07 12:30                             ` Dor Laor
     [not found]                               ` <64F9B87B6B770947A9F8391472E032160D17A1C2-yEcIvxbTEBqsx+V+t5oei8rau4O3wl8o3fe8/T/H7NteoWH0uzbU5w@public.gmane.org>
2007-08-07 12:50                                 ` Ulrich Schreiner
2007-08-07 14:38                                 ` Dong, Eddie
     [not found]                                   ` <10EA09EFD8728347A513008B6B0DA77A01E45A1D-wq7ZOvIWXbNpB2pF5aRoyrfspsVTdybXVpNB7YpNyf8@public.gmane.org>
2007-08-07 14:50                                     ` Dor Laor
2007-08-07 20:49                             ` Luca Tettamanti
     [not found]                               ` <20070807204922.GA27976-sTXFmx6KbOnUXq0IF5SVAZ4oGUkBHcCu@public.gmane.org>
2007-08-08  6:28                                 ` Ulrich Schreiner
2007-08-07 12:25                         ` Ulrich Schreiner
2007-08-09 23:23 ` Matthew Kent
2007-08-10  0:09   ` Matthew Kent
2007-08-10  5:32     ` Ulrich Schreiner
2007-08-10  6:39     ` Ulrich Schreiner
2007-08-16  9:56   ` Avi Kivity

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