[ntp:questions] ARRGH!!! I woke up to a 50 SECOND clock error.

Ron Frazier (NTP) timekeepingntplist at c3energy.com
Thu Mar 15 13:35:19 UTC 2012

Hi Rick,

Interesting thought.  It's Windows 7.  I don't know what it's time 
source is in technical terms, but it's a standard installation.  I've 
got pretty much all the power management stuff turned off.  The computer 
is set to never stand by or shut down when it's plugged into an AC 
outlet.  Just on a whim, I went into control panel and set the minimum 
cpu frequency on AC power to 100 % rather than 20 %, so the system won't 
throttle the CPU (unless it overheats or something).  I haven't seen any 
obvious effects from the change.  I also don't know what that will do to 
power consumption.  I know linux uses on demand processor frequency 
scaling by default.

Yes, several people have mentioned the wifi thing.  It's just a curse I 
have to live with at this time due to the physical configuration of my 
network.  Maybe, in the future, I'll get a chance to do some testing 
with wired connections.



On 3/14/2012 6:31 PM, Rick Jones wrote:
> Any chance these PCs are using a timesource (in the system somewhere)
> that isn't constant in the face of power management events?
> The other pink tiger (vs elephant) in your house could/would be the
> wifi - at least in terms of being a "stable" network type.  Some of
> the bufferbloat<http://www.bufferbloat.net/>  folks have little nice
> to say about wireless.
> rick jones
> http://www.netperf.org/


(PS - If you email me and don't get a quick response, don't be concerned.
I get about 300 emails per day from alternate energy mailing lists and
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Ron Frazier
timekeepingdude AT c3energy.com

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