In other words, it's an AVERAGE of X bytes/second over the time
interval. So I think you already have what you want - 5 minute intervals
with correct average per second values. 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of
Burton Strauss
Sent: Tuesday, February 15, 2005 10:57 AM
To: [email protected]
Subject: [Ntop] RE: [Ntop-dev] RRD Graphs Resolution

Nope it's not wrong.  Remember that once you create the rrd, the rings
are not altered by subsequent changes to the plugin configuration - that
only affects new rrd files.

But all the data in the rings are normalized per-second value OVER THE
SPAN of the slot.

See the example on pg 7, "Our data 'rows' are now (remember rrd converts
the absolute numbers into a per second value):"

If you look at the dumps (sample starts on pg 10), you'll also see this.


Once data is aggregated into the RRAs, that's the best granularity you
are going to get.  If you create a graph which tries for more granular
data, you just get wider bars.


-----Burton




-----Original Message-----
From: Farhan Ali Khan [mailto:[EMAIL PROTECTED]
Sent: Tuesday, February 15, 2005 11:28 AM
To: [email protected]; Burton Strauss
Subject: Re: [Ntop-dev] RRD Graphs Resolution

Hi,
I've already read all that stuff.
By default the dumpInterval is 5 minutes, so the label on graphs that
states bytes/sec or packets per second is wrong! (I had pointed that out
earlier as well). It should be bytes/5 min or packets/5 min. 
[bytes/dumpInterval, etc].
My question is simple.
Is it possible that the dumpInterval remains 5 minutes and we can get
graph that plots values according to per second? so that the label
bytes/sec or packets/sec holds true...

Thanks
Regards
Farhan Ali Khan


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