Headscratcher of the week

2013-05-31 Thread Mike
Gang, In the interest of sharing 'the weird stuff' which makes the job of being an operator ... uh, fun? is that the right word?..., I would like to present the following two smokeping latency/packetloss plots, which are by far the weirdest I have ever seen. These plots are from our

Re: Headscratcher of the week

2013-05-31 Thread Jonathan Lassoff
Those are some truly perplexing graphs. Quite strange that it appears linear, as if something is slightly changing over time or growing/shrinking at a constant-ish rate. Do you have throughput or PPS graphs for the intermediate links as well? Any similar correlations in the derivative slope? My

Re: Headscratcher of the week

2013-05-31 Thread Jeff Kell
OK, here's a wild guess from left-field. Well, at least from left-field where I made at least one game-saving catch :) We had a similar case some years back, but it was a ramp-up in overall traffic we were looking at. If you're looking at latency, it could be related to traffic (do you have

Re: Headscratcher of the week

2013-05-31 Thread Brett Frankenberger
On Fri, May 31, 2013 at 03:25:22PM -0700, Mike wrote: Gang, In the interest of sharing 'the weird stuff' which makes the job of being an operator ... uh, fun? is that the right word?..., I would like to present the following two smokeping latency/packetloss plots, which are by far the

Re: Headscratcher of the week

2013-05-31 Thread Jake Khuon
On 31/05/13 17:30, Brett Frankenberger wrote: How can you possibly have consistent increase in latency like that? I'd love to hear theories (or offers of beer, your choice!). Variation of the buffer filling theory is that there's some QoS/traffic-shaping going on which is causing

Re: Headscratcher of the week

2013-05-31 Thread Blake Dunlap
I agree with previous poster, table size progression and corresponding increase in search delay, probably related directly to the monitoring itself, or at least a connection state of some kind. On Fri, May 31, 2013 at 7:40 PM, Jake Khuon kh...@neebu.net wrote: On 31/05/13 17:30, Brett