<div dir="ltr"><div><div>Hi,<br><br></div>I'm looking for a little inspiration and experience here. <br><br></div><div>We
have a customer that has about 400 interfaces and he'd like to get an
overview of "How these interfaces are doing". When there are more than
about 15-20, looking at each individual graph simply brakes down.<br><br></div><div>My user wants an idea of what the "normal" situation is, and information about the worst outliers / extreme cases.<br></div><div><br></div><div>Looking at average and standard deviation is a possibility, but most of
my users (and I) really have no good intuitive feeling for what standard deviation
really "means". Plus "outlier/extreme" information is lost.<br><br>I've seen that smokeping does something interesting, see e.g.<br><br><a href="http://oss.oetiker.ch/smokeping-demo/img/Customers/OP/james%7Eoctopus_last_10800.png" target="_blank">http://oss.oetiker.ch/smokeping-demo/img/Customers/OP/james~octopus_last_10800.png</a><br><br>The "historgram" approach where darker grey implies more datapoints in
this "region" could be cool. This gives the overview. Have no idea how
this is accomplished, though.<br><br></div><div>I was thinking of using a
"histogram" approach like above overlayed with showing the actual
graphs of the N worst outliers/extremes. But that implies lots of
scripting and analysis to create the histogram (I'm guessing) and to identify the
outliers.<br><br></div><div>So: What have you guys done when creating an overview of many statistics? I'll leave you with this picture from the gallery:<br><br><a href="http://oss.oetiker.ch/rrdtool/gallery/576_nodes.png" target="_blank">http://oss.oetiker.ch/rrdtool/gallery/576_nodes.png</a><br><br></div><div>This is exactly the situation I want to avoid....<br><br></div><div>Sincerely,<br><br></div>Peter<br clear="all"><br>-- <br><div class="gmail_signature">Peter Valdemar Mørch<br><a href="http://www.morch.com" target="_blank">http://www.morch.com</a></div>
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