From: Keir Fraser <keir@xensource.com>
To: "Cui, Dexuan" <dexuan.cui@intel.com>,
Keir Fraser <keir@xensource.com>,
xen-devel@lists.xensource.com
Subject: Re: [Patch] Fix the slow wall clock time issue in x64 SMP Vista
Date: Wed, 10 Jan 2007 12:02:05 +0000 [thread overview]
Message-ID: <C1CA863D.7671%keir@xensource.com> (raw)
In-Reply-To: <666CC8FCE3247C4DA876BA979059781A5C288A@pdsmsx401.ccr.corp.intel.com>
On 10/1/07 11:53, "Cui, Dexuan" <dexuan.cui@intel.com> wrote:
> 1) I made the change mainly for timer1 of HPET. Actually I don't know exactly
> how x64 SMP Vista uses HPET's timer1 to adjust the wall clock time; but
> without the patch, HPET's timer1 can generate and inject interrupts with a
> frequency of 20KHz or so! and the wall clock time would become slow.
I cannot see the logic behind the change though. If the guest has set up a
timeout, and the timeout is in the past, it makes sense to deliver
immediately.
-- Keir
next prev parent reply other threads:[~2007-01-10 12:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-10 11:29 [Patch] Fix the slow wall clock time issue in x64 SMP Vista Cui, Dexuan
2007-01-10 11:36 ` Keir Fraser
2007-01-10 11:53 ` Cui, Dexuan
2007-01-10 12:00 ` [Patch] Fix the slow wall clock time issue in x64 SMPVista Cui, Dexuan
2007-01-10 13:49 ` Keir Fraser
2007-01-10 12:02 ` Keir Fraser [this message]
2007-01-10 13:09 ` [Patch] Fix the slow wall clock time issue in x64 SMP Vista Cui, Dexuan
2007-01-10 13:45 ` Keir Fraser
2007-01-11 13:29 ` [Patch] Fix the slow wall clock time issue in x64 SMPVista Dong, Eddie
2007-01-10 14:42 ` [Patch] Fix the slow wall clock time issue in x64SMP Vista Dong, Eddie
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