From: Keir Fraser <keir.fraser@eu.citrix.com>
To: Jan Beulich <JBeulich@novell.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: Re: recurring boot time scalability issues affecting time management
Date: Tue, 11 May 2010 11:22:22 +0100 [thread overview]
Message-ID: <C80EEE6E.13E9B%keir.fraser@eu.citrix.com> (raw)
In-Reply-To: <4BE936B002000078000023D7@vpn.id2.novell.com>
On 11/05/2010 09:51, "Jan Beulich" <JBeulich@novell.com> wrote:
>>>> Keir Fraser <keir.fraser@eu.citrix.com> 11.05.10 09:57 >>>
>> On 11/05/2010 07:59, "Jan Beulich" <JBeulich@novell.com> 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
prev parent reply other threads:[~2010-05-11 10:22 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-11 6:59 recurring boot time scalability issues affecting time management Jan Beulich
2010-05-11 7:57 ` Keir Fraser
2010-05-11 8:51 ` Jan Beulich
2010-05-11 10:22 ` Keir Fraser [this message]
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