[Orca-users] Re: Wrong Data Displayed in GIG files.

[Blair Zajac]

This is more a function of RRDtool than Orca.  RRDtool likes to place data
onto interger multiples of the time interval (5 minutes in Orca).  So it
will do some interpolation.  I'm guessing here, but the 4.8333 may be a
linear interpolation between the 12 and the 2 at 19:06:25 and 19:11:25.
If you want the real answer to this question, I'd look through the RRDtool
documentation in orca-0.24/packages/rrdtool-* and if you cannot find the
answer there, look through the RRDtool mailing list 

http://ee-staff.ethz.ch/~oetiker/webtools/rrdtool/mailinglists.html

Hope this helps,
Blair

pat.mcdermott at ni.com wrote:
> 
> From: pat.mcdermott at ni.com
> 
> Hello All ,
> Perhaps some of you have seen this before ?? I've recently installed orca-0.23
> on a Redhat Linux 2.2.5-15 machine , to plot some simple stats from a formatted
> text file - so I'm a novice !..The install / configuration went without any
> issues,perl modules installed ok etc ,  and the GIF's etc are being generated
> etc , no errors...The source text file looks like below..When the GIF's are
> generated it shows that the last entered data date is Oct 13 19:11:25 as shown
> below , but that the current usr% is 4.833333 sys% is 3.58333 and Idle is
> 91.583333 , whereas the raw data says 2% for usr% and 5%for sys% etc as shown
> below...If anyone has any ideas where these valuse are coming from , it would be
> helpful ? Am I missing something here, I've read the Orca man file/readme
> etc....Thanks , Pat..
> 
> timestamp localtime usr% sys%
> 939836185 18:36:25   5 9
> 939836485 18:41:25   1 6
> 939836785 18:46:25   8 1
> 939837085 18:51:25   6 4
> 939837385 18:56:25   24 01
> 939837685 19:01:25   96 0
> 939837985 19:06:25   12 0
> 939838285 19:11:25   2 5
>