Hi,
I needed this feature a year ago so I made a perl script which go
through all the values in selected interval in rrd database (using perl
RRD package from NfSen) and computes 95th percentile of total
transmitted data and top transmit rate. It is simple algorithm, it took
several hours to finish. Unfortunatelly, I can't post this script, it is
not an open source application. But what I can say is that it is not
difficult for someone to do this and post it somewhere.
Regards,
Jan
Martin Rushworth napsal(a):
> You could do this by adding something like the following to the code
> which generates the RRD graphs...
>
> VDEF:in_bits_per=in_bits,95,PERCENT
> VDEF:out_bits_per=out_bits,95,PERCENT
> GPRINT:in_bits_per:95\%\%\%8.2lf \%SBits/s
> GPRINT:out_bits_per:95\%\%\%8.2lf \%SBits/s
>
> that gives you a number written on the graph which is the 95 percentile
> calculation on the time scale of the graph.
>
> Martin
>
> Shane Gaumond wrote:
>> Our ISP charges us by our usage, they charge us $ x Y/Mb where Y is
>> equal to our 95th percentile usage. The 95th percentile billing
>> structure is an industry standard. It is supported by many network
>> monitoring programs like Cacti for example. If 95th percentile
>> calculations and graphing is not supported by nfsen, is there a using
>> nfsen RRD files in Cacti guide somewhere.
>>
>> http://en.wikipedia.org/wiki/Burstable_billing
>>
>> Shane Gaumond
>>
>> Peter Haag wrote:
>>
>
>
> Shane Gaumond wrote:
>
>
> >>>> I have found some google hits indicating nfsen supports 95th
> percentile
> >>>> functionality but I have not found any Documentation or HowTo's
> on the
> >>>>
> >>>>
> ?? 95th percentile functionality - of what?
>
>
>
> >>>> subject. Can someone help me out or point me in the right
> direction
> >>>> Thank you in advance for your help.
> >>>>
> >>>> Shane
> >>>>
> >>>>
> >>>>
> >>>>
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