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To: Adrian Chadd <adrian@freebsd.org>
Subject: Re: time issues and ZFS
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Comments: In-reply-to Adrian Chadd <adrian@freebsd.org>
 message dated "Tue, 22 Jan 2013 01:40:02 -0800."
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Date: Tue, 22 Jan 2013 11:55:39 +0200
From: Daniel Braniss <danny@cs.huji.ac.il>
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Cc: freebsd-stable@freebsd.org, Ian Lepore <ian@freebsd.org>
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> Daniel,
> 
> Have you run tests with the machdep.idle value changed, and fiddling
> kern.eventtimer.periodic / kern.eventtimer.idletick ?

Adrian,

not yet, for several reasons:
1- as I explained, I can't realy force the problem, it happens when we run some
zfs scripts, like mirror, but have to wait till enough changes happened on
the source, usualy after 24hs.
2- changing to LAPIC seems to have solved the problem.
3- I'm now learning all I can about event timers and you have not answered some
   of my questions :-)

danny