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Subject: Re: [PATCH 3/4] new timeofday x86-64 arch specific changes (v. B1)
From: john stultz <johnstul@us.ibm.com>
To: Parag Warudkar <kernel-stuff@comcast.net>
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Date: Thu, 02 Jun 2005 11:40:45 -0700
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On Thu, 2005-06-02 at 18:27 +0000, Parag Warudkar wrote:
> > If you grab Linus' current tree it should apply.
> > 
> > Sorry about the confusion.
> > -john
> 
> I ignored the reject since it was from an #include section - the build
> went fine. I am even able to use it successfully. Couple things -

Good to hear.


> Very happy to report that I no longer get those annoying - "losing
> some ticks ..." "your time source is unreliable or some driver is
> hogging interrupts" messages - Not sure what change in TOD subsystem
> cured it - or was it just the removal of the printk? ;) 

Since we do not interpolate, lost ticks no longer cause time problems
(well, unless you're using the jiffies timesource). 

> Sadly, it somehow feels noticeably slower than vanilla 2.6.12-rc5.
> Especially using X/KDE - It is surely usable but not snappy. I will do
> more research to find out exactly why - but before that is such as
> loss of snappiness possible due to the TOD changes?

Could you send me your dmesg output with and without using my patch? It
could be you're using a different timesource.

thanks
-john