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Re: [Xen-devel] [Patch] Fix the slow wall clock time issue in x64 SMP Vi
| To: | "Cui, Dexuan" <dexuan.cui@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [Patch] Fix the slow wall clock time issue in x64 SMP Vista |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Wed, 10 Jan 2007 11:36:51 +0000 |
| Cc: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Delivery-date: | Wed, 10 Jan 2007 03:36:35 -0800 |
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| Thread-index: | Acc0qpECUWE/uVerTTS+WkRpZ1GU0QAAQ2zN |
| Thread-topic: | [Xen-devel] [Patch] Fix the slow wall clock time issue in x64 SMP Vista |
| User-agent: | Microsoft-Entourage/11.2.5.060620 |
On 10/1/07 11:29, "Cui, Dexuan" <dexuan.cui@xxxxxxxxx> wrote: > In x64 SMP Vista HVM guest (vcpus=2 in the configuration file), the wall > clock time is 50% slower than that in the real world. The attached patch > fixes the issue. Looks like this code will inject fewer HPET interrupts. How does that make time go *faster*? Also, looking at hpet_timer_fn() is vcpu_kick() actually required? The PIC logic invoked from hpet_route_interrupt() should do any required kicking. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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