Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
If the image doesn't come through as an attachment, I've put it up on http://www.email.net/jon/hobbitping.png
Curiously, Jon
I have no idea, but that sure is pretty cool-looking! <grin>
Jim Smith
SVHS
Little Rock, AR
From: Jon Boede [mailto:jon at shadowsoft.com] Sent: Wednesday, October 01, 2008 12:25 PM To: hobbit at hswn.dk Subject: [hobbit] interesting patterns in graphs
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
If the image doesn't come through as an attachment, I've put it up on http://www.email.net/jon/hobbitping.png
Curiously, Jon
On Wednesday 01 October 2008, Jon Boede wrote:
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it? No. But I do have the same graphs on multiple hobbit installations. This issue was mentioned before on the mailint list but nobody had an answer.
Stef
I believe that graph is accurate for the network as many of us get those.
On 10/1/08, Stef Coene <stef.coene at docum.org> wrote:
On Wednesday 01 October 2008, Jon Boede wrote:
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it? No. But I do have the same graphs on multiple hobbit installations. This issue was mentioned before on the mailint list but nobody had an answer.
Stef
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
-- Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
Jon Boede wrote:
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
If the image doesn't come through as an attachment, I've put it up on http://www.email.net/jon/hobbitping.png
Curiously, Jon
I'm seeing similar graphs at my sites.
-- Bill Arlofski Reverse Polarity, LLC
Hi, If nothing else helps, maybe you can add some debug to look at the numbers before they get dropped in the rrd and so try to confirm or not that's a rrd consolidation characteristic or may be it could be the real net test numbers ... -wm ----------------------- Original Message ----------------------- From: jon at shadowsoft.com (Jon Boede) To: hobbit at hswn.dk
Date: Wed, 01 Oct 2008 12:24:47 -0500 Subject: [hobbit] interesting patterns in graphs
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
If the image doesn't come through as an attachment, I've put it up on http://www.email.net/jon/hobbitping.png
Curiously, Jon
Years ago I saw a pattern in one of my connection graphs. I was testing hosts on the another subnet that had a older router providing connectivity. There was also an automated backup job of some local file systems, and then batch jobs dispatched 5 nights a week. And that was what stuck out: The pattern changed on Saturday/Sunday night.
Larry Sherman RBS Global Banking & Markets Office: +1 203 618 2515
-----Original Message----- From: wmlist_ext at terra.com.br [mailto:wmlist_ext at terra.com.br] Sent: Wednesday, October 01, 2008 5:12 PM To: hobbit at hswn.dk Subject: Re: [hobbit] interesting patterns in graphs
Hi, If nothing else helps, maybe you can add some debug to look at the numbers before they get dropped in the rrd and so try to confirm or not that's a rrd consolidation characteristic or may be it could be the real net test numbers ... -wm ----------------------- Original Message ----------------------- From: jon at shadowsoft.com (Jon Boede) To: hobbit at hswn.dk
Date: Wed, 01 Oct 2008 12:24:47 -0500 Subject: [hobbit] interesting patterns in graphs
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
If the image doesn't come through as an attachment, I've put it up on http://www.email.net/jon/hobbitping.png
Curiously, Jon
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
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Jon Boede schreef:
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
We had the same sort of graphs; after changing grom hobbitping to fping, they disapeared...
Paul
I have not noticed that sort of pattern in my graphs, but I've noticed that hobbit using hobbitping often records latencies an order of magnitude slower than I see with a command-line ping.
David
Paul van Eldijk wrote:
Jon Boede schreef:
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
We had the same sort of graphs; after changing grom hobbitping to fping, they disapeared...
Paul
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
Did the graph change during the backup on just that duration of Saturday or was it changed from that point on?
On 10/2/08, David B. Ritch <david.ritch at gmail.com> wrote:
I have not noticed that sort of pattern in my graphs, but I've noticed that hobbit using hobbitping often records latencies an order of magnitude slower than I see with a command-line ping.
David
Paul van Eldijk wrote:
Jon Boede schreef:
Our ping times occasionally turn up graphs like the attached... It seems to me that this is an artifact of how rrd averages multiple into time "buckets" but I am not quite sure of that... anybody have an opinion as to what causes it?
We had the same sort of graphs; after changing grom hobbitping to fping, they disapeared...
Paul
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
To unsubscribe from the hobbit list, send an e-mail to hobbit-unsubscribe at hswn.dk
-- Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
Those who don't understand UNIX are condemned to reinvent it, poorly. --- Henry Spencer
participants (9)
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david.ritch@gmail.com
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JMSmith@stvincenthealth.com
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jon@shadowsoft.com
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josh@imaginenetworksllc.com
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Larry.Sherman@rbsgc.com
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P.vanEldijk@uci.ru.nl
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stef.coene@docum.org
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waa-hobbitml@revpol.com
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wmlist_ext@terra.com.br