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Re: [Xen-devel] recurring boot time scalability issues affecting time m
| To: | Jan Beulich <JBeulich@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] recurring boot time scalability issues affecting time management |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Tue, 11 May 2010 11:22:22 +0100 |
| Cc: | |
| Delivery-date: | Tue, 11 May 2010 03:23:12 -0700 |
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| Thread-topic: | [Xen-devel] recurring boot time scalability issues affecting time management |
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On 11/05/2010 09:51, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: >>>> Keir Fraser <keir.fraser@xxxxxxxxxxxxx> 11.05.10 09:57 >>> >> On 11/05/2010 07:59, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: >> >>> I wonder whether the time handling code in Xen itself shouldn't/can't >>> therefore be made more robust, or at least reliably detect this sort of >>> issue (from past analysis of similar problems, the platform timer is >>> rolling over due to there not being frequent enough invocations of >>> plt_overflow()) to make analysis of the problem easier. >> >> Something like the attached? > > Yes, except that you probably mean __builtin_llabs() rather than > __builtin_abs(). xen-unstable:21346 -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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