[rrd-users] Re: CDEF - creating a increasing series

[Alex van den Bogaerdt]

On Tue, Sep 07, 2004 at 10:17:58AM +0200, Lars Rune Bjørnevik wrote:

> Actually, this is an uptime display for a web server - not a trafficcounter... ;-)
> When I query the web, I get 1=up, 0=down
> A sum of this responce, divided by a sum of "ones" gives the uptime!

???

So, if the series is 1,1,1,0 then you get:

   sum of response:  1+1+1+0 = 3
   sum of "ones":    1+1+1   = 3
   division:         3/3 = 1.00  == 100% uptime

I do:

   DEF:ones_and_zeros=/path/to/my.....
   CDEF:uptime=ones_and_zeros,100,*
   PRINT:uptime,"%6.2lf %%"

and end up with 75.00 %


Alex
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