Chris Albertson wrote:
I have to admit I know nothing abut Linux serial PPS. My guess is I
need to somehow set this up before I try to get it to work with NTP.
My clockstats file is filled with the the messages quoted below. Is
there something I can read. I've build ntpd with the required
Hal Murray wrote:
In article AANLkTikErZ-bkbwnFBQHWsNe7OUL=sx4oetg+9r_u...@mail.gmail.com,
Chris Albertson albertson.ch...@gmail.com writes:
I have to admit I know nothing abut Linux serial PPS. My guess is I
need to somehow set this up before I try to get it to work with NTP.
My clockstats
In article ia4v28-a6c@p4x2400c.home.lordynet.org,
David Lord sn...@lordynet.org writes:
or even a LED + diode + resistor will be enough to show if there is
a pulse. Radioclkd2 can be used in debug mode to confirm the single
DCD pulse and width.
Some devices put out a narrow (10 microsecond)
In article slrnilckj1.3pd.nom...@xs8.xs4all.nl,
Rob nom...@example.com writes:
Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote:
It would be good if someone (or someones) has actually been collecting
rawstats for a long period, to serve as a baseline. Bufferbloat is a
relatively new
In article ijhd7d$au6$1...@news.eternal-september.org,
E-Mail Sent to this address will be added to the BlackLists
Null@BlackList.Anitech-Systems.invalid writes:
As far as I can tell the products have all the knobs
they need to be properly configured to deal with the issue.
The ISPs /
At 01:16 AM 2/17/2011, Chris Albertson wrote...
My guess is I
need to somehow set this up before I try to get it to work with NTP.
Yes, NTP messages aren't very informative. Do you have the
pps-tools(ppstest specifically)? Info at
On 2011-02-17, Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote:
Some devices put out a narrow (10 microsecond) pulse. I don't know
what the Oncore does.
I have one PC that works fine with a narrow pulse and another PC
that doesn't see it. I kludged together a pulse stretcher
On 2/17/2011 5:03 AM, Hal Murray wrote:
In articleia4v28-a6c@p4x2400c.home.lordynet.org,
David Lordsn...@lordynet.org writes:
or even a LED + diode + resistor will be enough to show if there is
a pulse. Radioclkd2 can be used in debug mode to confirm the single
DCD pulse and width.
From: hal-use...@ip-64-139-1-69.sjc.megapath.net (Hal Murray)
Date: Thu, 17 Feb 2011 04:52:36 -0600
Sender: questions-bounces+oberman=es@lists.ntp.org
In article slrnilckj1.3pd.nom...@xs8.xs4all.nl,
Rob nom...@example.com writes:
Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net
The pointer to ppstest might be what I need, a way to see it it's
working without depending on ntpd being configured correctly. I'll
try it this weekend.
I have an LED on my Oncore and I can see by eye the pulse is roughly
0.2 seconds, certainly not in the microseconds range. The PPS goes to
a
David J Taylor david-tay...@blueyonder.co.uk.invalid wrote in message
news:ijhb50$ifm$1...@news.eternal-september.org...
V3.60 was out at the start of Jan I think - but there is nothing in the
notes to say this issue is resolved. Do we need to chase this with Garmin
UK?
Yes, we do. I've
David J Taylor wrote:
I'm supposed to be on the Garmin RSS feed for updates, but I didn't see
3.60 announced. I've now downloaded a copy but, as you say, it doesn't
claim to address the issue. I'm still waiting for my Sure Electronics
equivalent to arrive from China:
Mike wrote:
Yes, NTP messages aren't very informative. ...
Patches or bug/enhancement requests are welcome.
H
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In article aanlktimlss1bjtrde77av92-wwfyr_g7ovm7zd0yr...@mail.gmail.com,
Chris Albertson albertson.ch...@gmail.com writes:
(It's a 75 foot serial cable.) I suspect a software configuration
problem or maybe polarity.
If the polarity is wrong, you will just use the other edge. It will be
off
Ok I'll go back over your past posts re the problem and report it myself
to Garmin UK and see what they say - once I get something back I'll let
you know.
I have 3.60 running anyway with no new problems (that I can see)
Thanks, Q, I can't see it doing any harm.
Cheers,
David
At 02:59 PM 2/17/2011, Hal Murray wrote...
If the polarity is wrong, you will just use the other edge. It will
be
off in timing by the pulse width. It will appear to work, just get
the
wrong answer.
Not necessarily.
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Hal Murray wrote:
BlackLists wrote:
As far as I can tell the products have all the knobs
they need to be properly configured to deal with
the issue.
The ISPs / NOC staff / IT departments / ... just
aren't taking the time, to properly / fully configure
the products, rather than
On 2/17/2011 12:55 PM, Chris Albertson wrote:
The pointer to ppstest might be what I need, a way to see it it's
working without depending on ntpd being configured correctly. I'll
try it this weekend.
I have an LED on my Oncore and I can see by eye the pulse is roughly
0.2 seconds, certainly
On 2/17/2011 2:59 PM, Hal Murray wrote:
In articleaanlktimlss1bjtrde77av92-wwfyr_g7ovm7zd0yr...@mail.gmail.com,
Chris Albertsonalbertson.ch...@gmail.com writes:
(It's a 75 foot serial cable.) I suspect a software configuration
problem or maybe polarity.
You should also consider possible
On Thu, Feb 17, 2011 at 2:29 PM, Richard B. Gilbert
rgilber...@comcast.net wrote:
You should also consider possible problems with the serial cable. The
RS232-C standard says fifty feet is the maximum length. Many people have
used cable runs far longer than fifty feet. It frequently works
Hal Murray hal-use...@ip-64-139-1-69.sjc.megapath.net wrote:
In article slrnilckj1.3pd.nom...@xs8.xs4all.nl,
Rob nom...@example.com writes:
When downloading a single big file causes you 3 second delays, you
simply have set an insanely large TCP window.
I didn't tweak anything.
If you are
Dave Täht d...@taht.net wrote:
Rick Jones rick.jon...@hp.com writes:
Or rather, that even after setting the tx queue lengths to 32
packets, a test between that system and one 7ms away still
resulted in 4MB socket buffers by the end of the test. Ie
confirming that the linux autotuning
On Thu, Feb 17, 2011 at 4:40 AM, Mike S mi...@flatsurface.com wrote:
At 01:16 AM 2/17/2011, Chris Albertson wrote...
Get your source working with ppstest working before you try NTP. When your
PPS source is set up and working, you should get something like:
locke:/usr/src/pps-tools# ./ppstest
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