[rrd-developers] Unexpected behaviour of PREDICT and PREDICTSIGMA

Steve Shipway s.shipway at auckland.ac.nz
Sat Apr 26 11:02:49 CEST 2014

So, assuming stptr is zero based, this means my `analysis of the behaviour of negative shift counts is correct.

My question, though, is more to ask if this was intended by design, or if it is a 'feature'?

Intuitively, I would have expected this:


to result in shifts of s, 2s, 3s, .... ns

However, it actually results in shifts of 0, s, 2s, ... (n-1)s

Either way, it can't be changed now as it would potentially alter existing behaviour... 


Steve Shipway
University of Auckland ITS
UNIX Systems Design Lead
s.shipway at auckland.ac.nz
Ph: +64 9 373 7599 ext 86487

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