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Re: [Xen-devel] Re: [Xen-users] ntpd under Xen Dom0 exhibits extremely high jitter/noise? runs stable/quiet under non-xen kernel.


  • To: Xen User-List <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: mail ignored <0.bugs.only.0@xxxxxxxxx>
  • Date: Mon, 18 Jan 2010 18:12:44 -0800
  • Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
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this page,

  http://wiki.xensource.com/xenwiki/xenpm

seems to address hpet, pit & acpi timer sources.  and does so without
every mentioning 'clocksource' ...
tbh, i can't get past the broken english on the page;  it would be
really helpful if someone who actually understands that stuff cleaned
up the readability.

the recommendations there are( i think?) "by far" to use HPET/PIT.
which contraindicates the conclusion that I came to above :-/

so, questions are:

(1) *is* there, in fact, a bug here?
(2) which Timer is, in keeping with any/all issues discussed @ the
aforementioned wiki page, recommended?
(3) is the *real* answer simply intended to be "try them all, pick what works"?

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