Chromium performance - HABPanel & OH2 on RaspberryPi Zero with a touch screen

Apps & Services HABPanel
21

So the results are here and they explain a lot.
The tests are 3.
A is a button pressed that controls directly a GPIO item of the RasPi. No rules are triggered.
B is a small button pressed that controls an OH variable shown in very small font. A few rules are triggered.
C is a large button pressed that controls an OH variable shown in large font. No rules are triggered.

Here are the scenarios used for the above 3 tests. The numbers below each scenario is the response delay in seconds measured by hand and a runner’s stopwatch using a stylus to press accurately the LCD.

  1. Load the paper UI in Chromium on the LCD
    <1sec
    1.3
    1.6

  2. Stock HABPanel with HestiaPi’s UI loaded
    <1sec
    2
    <2

  3. Optimised HABPanel from csowada
    1sec (I guess the difference is negligible and hard to see by hand)
    1.6
    1.6

  4. Same as above but the HABPanel got most of its items removed to see if many items matter
    1sec
    NA (the button used here is removed)
    1.6

  5. Running Chromium, showing HABPanel hosted on a remote (but local) RasPi Zero
    <1sec
    1.6
    1.3

So my conclusions are:

  1. @csowada version does help :slight_smile:
  2. Rendering area on the screen affects the responsiveness
  3. Running both OH2 and Chromium on the same RasPi Zero is too much
  4. Amount of items (within limits) does not affect the responsiveness
  5. Amount of rules (within limits) does not affect the responsiveness
  6. Smooth operation is not possible (yet)
  7. Memory is probably not the bottleneck but the actual (peak) CPU load

I hope I help others within and outside the OH community.
Thank you all !

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