[time-nuts] NTP jitter with Linux

[shalimr9 at gmail.com]

An older laptop (Pentium M for instance) can be had for $80 or so any day of the week, won't take much space, is completely standalone (built-in keyboard and display, built-in battery backup) and sips power when idle, which it will be most of the time.

The only issue is that you might be tempted to run more things on it and affect NTP performance. But if you load it with BSD and use it just for that, it will be a dandy solution.

Didier KO4BB

Sent from my BlackBerry Wireless thingy while I do other things...

-----Original Message-----
From: gary <lists at lazygranch.com>
Sender: time-nuts-bounces at febo.com
Date: Wed, 04 Apr 2012 22:09:14 
To: Discussion of precise time and frequency measurement<time-nuts at febo.com>
Reply-To: Discussion of precise time and frequency measurement
	<time-nuts at febo.com>
Subject: Re: [time-nuts] NTP jitter with Linux

> http://www.newegg.com/Product/Product.aspx?Item=N82E16813131663

Yep. This is what I run 24 and 7 for a number of monitoring tasks. It 
has an Intel SSD. Mobo was $140 at Fry's. SSD was a Fry's special too. 
It has a Nvidia ion2 (it does home theater PC streaming at times.] USB 
3. Gigabit ethernet. Ignore the comment about it not playing 720P. It 
does 1080 no problem IF you are using hardware acceleration.

The D525 was the first 64 bit atom. It can use a full 4G of RAM. There 
may be better Atoms out there now since I've built this.

This particular mobo is very picky on RAM. It is best to read the 
feedback on Newegg, which was of more use than the Asus webpage. [I see 
someone claims 8Gbytes..eh, I think the chipset limit is 4.] Using 
SODIMMs is a drawback (more expensive than standard RAM).

-----------
"I did the same thing.  They work well and even if you have a "free"
quad core PC in a closet some place it is cost effective to toss the
thing in the trash and by a new computer with an Atom CPU."

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