Author Topic: Clarification about Memory and CPU  (Read 698 times)

Offline paros

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Clarification about Memory and CPU
« on: February 01, 2017, 04:41:26 am »
Can someone give advice how I should understand the values from Eventwatcher (what is normal/not normal)?
For example, I have a Vera Plus and have the following values:

Vera Memory
Red line: 150MB
Blue line: 195

EventWatcher Memory
0.41MB

Vera CPU
30%

Offline akbooer

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Re: Clarification about Memory and CPU
« Reply #1 on: February 01, 2017, 05:01:23 am »
  • red - free memory
  • blue -available memory
  • EventWatcher memory - the amount being used by this app only

In Unix terms, available = free + cached, so you have lots of elbow room.

The time to worry is when free suddenly dips low.

My Veras (Lite and Edge) typically run at 20% CPU, but I'm not using any heavy plugins like PLEG.

3x Vera Lite-UI5/Edge-UI7, 25x Fibaro, 23x TKB, 9x MiniMote, 2x NorthQ Power, 2x Netatmo, 1x Foscam FI9831P, 9x Philips Hue,
Razberry, MySensors Arduino, HomeWave, AltUI, AltHue, DataYours, Grafana, openLuup, ZWay, ZeroBrane Studio.

Offline paros

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Re: Clarification about Memory and CPU
« Reply #2 on: February 01, 2017, 05:06:54 am »
Would it be a good idea to write a short explanation on the reports?

Offline akbooer

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Re: Clarification about Memory and CPU
« Reply #3 on: February 01, 2017, 05:22:06 am »
Quote from: EventWatcher User Guide, p. 5
The blue area in the memory plot shows 'cached' memory, the red is 'free', the total being the 'available' memory.  If the free memory falls towards zero then the Luup process is liable to restart itself.

...agreed that's not the same as on the report itself.
« Last Edit: February 01, 2017, 05:25:15 am by akbooer »
3x Vera Lite-UI5/Edge-UI7, 25x Fibaro, 23x TKB, 9x MiniMote, 2x NorthQ Power, 2x Netatmo, 1x Foscam FI9831P, 9x Philips Hue,
Razberry, MySensors Arduino, HomeWave, AltUI, AltHue, DataYours, Grafana, openLuup, ZWay, ZeroBrane Studio.