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xen-devel
Re: [Xen-devel] [PATCH 0/2] range timer support
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To: |
"Yu, Ke" <ke.yu@xxxxxxxxx>, Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, Yu Ke <mr.yuke@xxxxxxxxx> |
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Subject: |
Re: [Xen-devel] [PATCH 0/2] range timer support |
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From: |
Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
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Date: |
Thu, 30 Oct 2008 08:35:24 +0000 |
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Cc: |
"Liu, Jinsong" <jinsong.liu@xxxxxxxxx>, "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Dave Winchell <dwinchell@xxxxxxxxxxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx> |
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Thu, 30 Oct 2008 01:35:42 -0700 |
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[Xen-devel] [PATCH 0/2] range timer support |
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On 30/10/08 08:31, "Yu, Ke" <ke.yu@xxxxxxxxx> wrote:
> In the range-timer-use.patch, vpt timer range is [deadline, deadline+
> MIN(period/8, 1ms)], so the tick will only expire later than expected, thus
> will not trigger the issue you mentioned. Anyway, range timer is just API,
> caller has the flexibility to decide how to use it. in the HPET case, since we
> know HPET does not allow early ticks, we can dedicatedly set range to avoid
> that.
>
> If we increasing TIME_SLOP value, HPET ticks may expires sooner than expected.
Yeah, this is an argument for hacking in a new kind of slop for deadline
setting, or building on range timers (but keeping the existing timer
interface).
-- Keir
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- Re: [Xen-devel] [PATCH 0/2] range timer support, (continued)
- Re: [Xen-devel] [PATCH 0/2] range timer support, Keir Fraser
- RE: [Xen-devel] [PATCH 0/2] range timer support, Yu, Ke
- Re: [Xen-devel] [PATCH 0/2] range timer support, Keir Fraser
- Re: [Xen-devel] [PATCH 0/2] range timer support, Yu Ke
- RE: [Xen-devel] [PATCH 0/2] range timer support, Yu, Ke
- Re: [Xen-devel] [PATCH 0/2] range timer support, Keir Fraser
- RE: [Xen-devel] [PATCH 0/2] range timer support, Yu, Ke
- Re: [Xen-devel] [PATCH 0/2] range timer support, Keir Fraser
- RE: [Xen-devel] [PATCH 0/2] range timer support, Yu, Ke
- Re: [Xen-devel] [PATCH 0/2] range timer support, Keir Fraser
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