openstack team mailing list archive

[Julien Danjou <julien@xxxxxxxxxxx>]

On Wed, Oct 31 2012, Eoghan Glynn wrote:

> A-ha, OK, so not so much (max - min) as:
>
>    (\Sigma local maxima) - first

Yeah, excuse my math. :)

> Sounds computationally expensive to produce on the fly, but maybe
> the local maxima can be efficiently recorded as the data is being
> ingested.

Yes it's more expense in theory, but in practice I'm rather than with a
good back-end it's not a problem (either pre-compute or have the right
toolslike PostgreSQL).

-- 
Julien Danjou
;; Free Software hacker & freelance
;; http://julien.danjou.info

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