<![CDATA[context update vs cron]]>If I have a point taking the delta between a totalizer every 15 minutes, using this equation

return p317.value - p317.ago(MINUTE, 15)

would it be better on the cpu (mango) to use a context update or to use a CRON pattern

0 0/15 * * * ?

]]>https://forum.mango-os.com/topic/2498/context-update-vs-cronRSS for NodeWed, 22 Apr 2026 14:24:56 GMTThu, 20 Oct 2016 15:52:29 GMT60<![CDATA[Reply to context update vs cron on Thu, 20 Oct 2016 17:04:41 GMT]]>I'm not sure there is a hard and fast simplification for the selection of the type. That said, that's a fine intuition to start from.

Another kind of meta data point will be something like the 'Time since status' genre. In this case, I typically use a cron AND a context update. While just using a cron would enable you to recompute the minutes since the last update/change/negative value/whatever, but it isn't responsive and would probably never report a zero. So the context update is useful to zero it out.

]]>https://forum.mango-os.com/post/12929https://forum.mango-os.com/post/12929Thu, 20 Oct 2016 17:04:41 GMT<![CDATA[Reply to context update vs cron on Thu, 20 Oct 2016 15:59:14 GMT]]>So if I am doing things on a "time" basis, cron is better? It is my understanding that I would use a context update more for a "Status" , or event handler.

]]>https://forum.mango-os.com/post/12925https://forum.mango-os.com/post/12925Thu, 20 Oct 2016 15:59:14 GMT<![CDATA[Reply to context update vs cron on Thu, 20 Oct 2016 15:56:57 GMT]]>I would use a cron for that regardless but the CPU question depends on how often your contex point where to update.

]]>https://forum.mango-os.com/post/12924https://forum.mango-os.com/post/12924Thu, 20 Oct 2016 15:56:57 GMT