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rony
Developer/Forum Admin
Joined: 17 Nov 2003
Posts: 5452
Location: Wisconsin, USA
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 Posted: Tue Jun 21, 2005 12:51 pm Post subject: [INFO] What is this 'm' or 'u' after my numbers in graphs?? |
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Because of the amount of resent post I have been seeing, and past, I have decided this is sticky information.
Basically, if you see a letter after a number on your graphs, it is an unit that rrdtool has converted that value to. This is done for readability. The following table gives you an idea of the possible units that will follow a number in your graphs.
| Code: | 10^-18 a - atto
10^-15 f - femto
10^-12 p - pico
10^-9 n - nano
10^-6 u - micro
10^-3 m - milli
0 (no unit)
10^3 k - kilo
10^6 M - mega
10^9 G - giga
10^12 T - tera
10^15 P - peta |
Last edited by rony on Fri Mar 09, 2007 9:54 am; edited 6 times in total |
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spex
Joined: 19 May 2005
Posts: 16
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| Posted: Fri Nov 17, 2006 5:17 am Post subject: |
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If you have value's based on 1024 e.g. from storage devices the values shown are wrong. Can you tell cacti to handle that correct, or is a cdef the only solution.
Regards Spex |
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rony
Developer/Forum Admin
Joined: 17 Nov 2003
Posts: 5452
Location: Wisconsin, USA
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| Posted: Sun Nov 19, 2006 12:03 pm Post subject: |
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| In the data source, base value should be changed from 1000 to 1024. |
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spex
Joined: 19 May 2005
Posts: 16
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| Posted: Wed Nov 22, 2006 6:44 am Post subject: |
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I could not find the place where you can change the base value.
Looked at datasource and datatemplate and at rrd with rrdeditor.
Can you please explain a little more....
Regards Spex |
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rony
Developer/Forum Admin
Joined: 17 Nov 2003
Posts: 5452
Location: Wisconsin, USA
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| Posted: Wed Nov 22, 2006 9:43 am Post subject: |
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I should really consider sleeping more, it might help me to answer questions right.
It's actually a graph value not a data source value.
Sorry...  |
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spex
Joined: 19 May 2005
Posts: 16
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| Posted: Fri Nov 24, 2006 3:14 am Post subject: |
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| rony wrote: | It's actually a graph value not a data source value.
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I can not find the desired item.
Maybe you talk about a definition of cdef's or gprints.
But the scaling is as far as I know be done automatically by rrdtool.
So cdefs or gprints are not the right way.
Regards Spex |
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jt72
Joined: 14 Jul 2008
Posts: 5
Location: Cork, Ireland
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| Posted: Tue Jul 15, 2008 5:07 am Post subject: Limit to x decimal places or specific notation? |
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I am reading/graphing a value reported in tenths - eg 101 is value given back which equals 10.1 dBmV.
This works fine unless the value is between -9 to +9 (so -.9 to +.9 dBmV). In this case I get 900m instead of .9
Is it possible to restrict the values to one decimal place or to use a specific notation? It's not a big deal, but the data is represented in a way users are not familiar with. |
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BSOD2600
Cacti Moderator
Joined: 08 May 2004
Posts: 6788
Location: WA, USA
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| Posted: Tue Jul 15, 2008 12:21 pm Post subject: |
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This is an rrdtool issue, so if you figure out how to do it (maybe reading through the manual), then yes, it can be possible  . |
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DervMan
Joined: 29 Apr 2008
Posts: 4
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| Posted: Thu Nov 20, 2008 4:47 am Post subject: |
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Did you find a solution to this?
I too am getting 200m on the y axis when I want .20.
Thanks |
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