verify 95th percentile value

sys0p · Post by **sys0p** » Tue Sep 25, 2007 7:33 am

Can anyone please get back on this ? I did another test with data from 2007/09/23 23:55:00 to 2007/09/24 23:55:00 and I have 290 rows .

The 95th percentile on the graph is at row 269 when it should be at position 274 .

Can anyone please tell me why is it so off course ?

Post by **rony** » Tue Sep 25, 2007 8:35 am

You should be using the RRDTool fetch function to get the values from the rrdtool files. Using the dump will give you different values for the rows. As the fetch will use the best resolution for the given time range you have selected.

sys0p · Post by **sys0p** » Tue Sep 25, 2007 1:25 pm

rony wrote:You should be using the RRDTool fetch function to get the values from the rrdtool files. Using the dump will give you different values for the rows. As the fetch will use the best resolution for the given time range you have selected.

Hello Rony ,

This is what I am actually using ..

perl -e '$ctime = time; $rrdres = 300; \
system "rrdtool fetch name_traffic_in_964.rrd MAX -e @{[int($ctime/$rrdres)*$rrdres]} ...

Post by **rony** » Tue Sep 25, 2007 2:13 pm

Cacti fetches the AVERAGE.

yongsan · Post by **yongsan** » Thu Oct 18, 2007 1:12 am

Hi,

Like to reopen up this post.

I would like to also bill my customer monthly with 5 min average instead of the default 2 hour average for the monthly graph. Do I also change the Daily graph to 26280?

Sorry but pretty new to cacti and hoping to find some advice on this.

Thanks

verify 95th percentile value

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