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[Xen-devel] Re: [PATCH] Align periodic vpts
| To: | "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "Wei, Gang" <gang.wei@xxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH] Align periodic vpts |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Wed, 11 Feb 2009 13:05:57 +0000 |
| Cc: | |
| Delivery-date: | Wed, 11 Feb 2009 05:06:25 -0800 |
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| Thread-topic: | [PATCH] Align periodic vpts |
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On 11/02/2009 12:00, "Tian, Kevin" <kevin.tian@xxxxxxxxx> wrote: > Think it more, I think that Jimmy's patch is simpler and more > accurate for the purpose. It's just a one-time adjustment for > periodical timer, and no harm to single-shot timer. It can be > enabled by default, while per-domain range has side-effect > unless adding more code to differentiate timers which is not > worthy. > > Of course per-domain switch is still required to disable it as > your previous comment, for old guest. I'd actually be interested in knowing how just bumping Xen cmdline option timer_slop= would influence power usage and guest timers. No new code needed, a nice sliding dial (per host) for power usage versus timer accuracy. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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