graphite-dev team mailing list archive

[Nicholas Leskiw <nleskiw@xxxxxxxxx>]

You could also do that math in your script. Have it read /proc once a second, calculate a bytes/sec avg once a minute, and send that to a second Graphite metric like Server.iface.eth0.bytesPerSecond


-Nick

On Apr 27, 2011, at 1:30 AM, Kevin Blackham <question154372@xxxxxxxxxxxxxxxxxxxxx> wrote:

> Question #154372 on Graphite changed:
> https://answers.launchpad.net/graphite/+question/154372
> 
> Kevin Blackham proposed the following answer:
> 1/60 gives you bytes per second if your dataset range is within the
> 259200 second bucket. You want to *8 for bits.  Scale 0.1333333.
> 
> When I get some time, I'll be adding a patch for auto determining the
> scale factor based on the storage interval used for the source values.
> For example, if you go beyond 259200 second range, you are now dipping
> into 300 sec and scale is 0.0266667, and there is no way to know
> automatically other than to notice your graph is totally out of whack.
> :) (or fetch with &rawData=1 and the interval is in the leading columns
> of the csv.)
> 
> On Apr 26, 2011, at 23:13, Matt Snow
> <question154372@xxxxxxxxxxxxxxxxxxxxx> wrote:
> 
>> Question #154372 on Graphite changed:
>> https://answers.launchpad.net/graphite/+question/154372
>> 
>> Matt Snow posted a new comment:
>> Thanks Jason. I use the nonNegativeDerivative() but i'm fairly certain
>> the byte counters in the Linux kernel do not roll over. there are
>> actually a lot of gripes about this from Solaris admins since you can
>> reset the network interface counters in Solaris.
>> 
>> I guess I didn't really think about it much as for how to get the
>> numbers looking how I want them.
>> 
>> The storage retention for my network data is
>> 60:259200,300:103680,3600:8760. Each metric sample is collected every 60
>> seconds and sent to graphite. so if 1 / 60 is 0.0166 then that should be
>> my scale, correct?
>> 
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