[Bug]: Memory leak

[tlanfer]

Requirements

• I checked the troubleshooting section in the README to verify that I have the latest TrashCard version.
• I did a search to see if there is a similar issue or if a pull request is open.

Current Behavior

I'm running fully kiosk browser with a home assistant dashboard on a lenovo tablet in the hallway, showing some useful information like the trash collection schedule. I noticed regularly, the app would close. looking at the "free memory" statistics from fully kiosk, it showed that the memory would get eaten up rather quickly.
Comparing the dashboard with another tablet i am using, the main difference was the hassio-trash-card.
Watching a the builtin chrome task manager on my desktop machine, showing the same dashboard, i can watch the memory footprint grow by a few megabytes every few minutes.

Removing the trash card makes this behavior stop.
I attached a screenshot of the statistic for "free memory". The left half was when i still had the trash card on that dashboard. the gaps are when the app was closed because android killed it for using too much memory. the right half is from after i removed the card from the dashboard.

Expected Behavior

I expected the memory to be roughly stable.
I have not found the time yet to do more experiments to find out if something specific in my configuration causes this.

Steps To Reproduce

This is my card config:

event_grouping: true
drop_todayevents_from: "10:00:00"
next_days: 14
pattern:
  - icon: mdi:flower
    color: brown
    type: organic
    label: Bioabfall
    pattern: Bioabfall
  - icon: mdi:newspaper
    color: blue
    type: paper
    label: Altpapier
    pattern: Altpapier
  - icon: mdi:recycle-variant
    color: amber
    type: recycle
    label: Gelbe Tonne
    pattern: Gelbe Tonne
  - icon: mdi:trash-can-outline
    color: grey
    type: waste
    label: Restmüll
    pattern: Restmüll
  - icon: mdi:dump-truck
    color: purple
    type: others
day_style: counter
alignment_style: left
items_per_row: 3
refresh_rate: 60
with_label: true
layout: vertical
type: custom:trash-card
entities:
  - calendar.mull
layout_options:
  grid_columns: full
  grid_rows: 2
filter_events: true
hide_time_range: true
use_summary: false
full_size: false

The calendar is coming in through the google calendar integration

Context

YAML state

Environment

- Browser: Chrome
- HA Version: 2024.11.0
- TrashCard: 2.4.4

Debug data

[{"message":"timezone","data":"+01:00"},{"message":"calendar data","data":[{"start":{"dateTime":"2024-11-27T07:00:00+01:00"},"end":{"dateTime":"2024-11-27T07:30:00+01:00"},"summary":"Altpapier","description":"Altpapier","location":"Fritz-Reuter-Straße, Gescher","uid":"7d2e6118-f504-430c-b84e-ceec4f972a78","recurrence_id":null,"rrule":null,"entity":"calendar.mull"},{"start":{"dateTime":"2024-11-28T07:00:00+01:00"},"end":{"dateTime":"2024-11-28T07:30:00+01:00"},"summary":"Bioabfall","description":"Bioabfall","location":"Fritz-Reuter-Straße, Gescher","uid":"88530081-f716-4930-82ea-99b27ca6aa10","recurrence_id":null,"rrule":null,"entity":"calendar.mull"},{"start":{"dateTime":"2024-11-28T07:00:00+01:00"},"end":{"dateTime":"2024-11-28T07:30:00+01:00"},"summary":"Gelbe Tonne","description":"Gelbe Tonne","location":"Fritz-Reuter-Straße, Gescher","uid":"07b73300-37e9-4306-81d8-c74fd2911f01","recurrence_id":null,"rrule":null,"entity":"calendar.mull"},{"start":{"dateTime":"2024-12-11T07:00:00+01:00"},"end":{"dateTime":"2024-12-11T07:30:00+01:00"},"summary":"Restmüll 2W","description":"Restmüll 2W","location":"Fritz-Reuter-Straße, Gescher","uid":"e1deb64e-e46a-41c5-b809-0ca89a61778c","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}]},{"message":"normaliseEvents","data":[{"date":{"start":"2024-11-27T06:00:00.000Z","end":"2024-11-27T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Altpapier","description":"Altpapier","location":"Fritz-Reuter-Straße, Gescher","uid":"7d2e6118-f504-430c-b84e-ceec4f972a78","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}},{"date":{"start":"2024-11-28T06:00:00.000Z","end":"2024-11-28T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Bioabfall","description":"Bioabfall","location":"Fritz-Reuter-Straße, Gescher","uid":"88530081-f716-4930-82ea-99b27ca6aa10","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}},{"date":{"start":"2024-11-28T06:00:00.000Z","end":"2024-11-28T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Gelbe Tonne","description":"Gelbe Tonne","location":"Fritz-Reuter-Straße, Gescher","uid":"07b73300-37e9-4306-81d8-c74fd2911f01","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}},{"date":{"start":"2024-12-11T06:00:00.000Z","end":"2024-12-11T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Restmüll 2W","description":"Restmüll 2W","location":"Fritz-Reuter-Straße, Gescher","uid":"e1deb64e-e46a-41c5-b809-0ca89a61778c","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}}]},{"message":"dropAfter","data":true},{"message":"now","data":"2024-11-27T21:03:25.718Z"},{"message":"activeElements","data":[{"date":{"start":"2024-11-28T06:00:00.000Z","end":"2024-11-28T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Bioabfall","description":"Bioabfall","location":"Fritz-Reuter-Straße, Gescher","uid":"88530081-f716-4930-82ea-99b27ca6aa10","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}},{"date":{"start":"2024-11-28T06:00:00.000Z","end":"2024-11-28T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Gelbe Tonne","description":"Gelbe Tonne","location":"Fritz-Reuter-Straße, Gescher","uid":"07b73300-37e9-4306-81d8-c74fd2911f01","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}},{"date":{"start":"2024-12-11T06:00:00.000Z","end":"2024-12-11T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Restmüll 2W","description":"Restmüll 2W","location":"Fritz-Reuter-Straße, Gescher","uid":"e1deb64e-e46a-41c5-b809-0ca89a61778c","recurrence_id":null,"rrule":null,"entity":"calendar.mull"}}]},{"message":"eventsToItems","data":[{"date":{"start":"2024-11-28T06:00:00.000Z","end":"2024-11-28T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Bioabfall","description":"Bioabfall","location":"Fritz-Reuter-Straße, Gescher","uid":"88530081-f716-4930-82ea-99b27ca6aa10","recurrence_id":null,"rrule":null,"entity":"calendar.mull"},"icon":"mdi:flower","color":"brown","type":"organic","label":"Bioabfall","pattern":"Bioabfall","idx":0},{"date":{"start":"2024-11-28T06:00:00.000Z","end":"2024-11-28T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Gelbe Tonne","description":"Gelbe Tonne","location":"Fritz-Reuter-Straße, Gescher","uid":"07b73300-37e9-4306-81d8-c74fd2911f01","recurrence_id":null,"rrule":null,"entity":"calendar.mull"},"icon":"mdi:recycle-variant","color":"amber","type":"recycle","label":"Gelbe Tonne","pattern":"Gelbe Tonne","idx":2},{"date":{"start":"2024-12-11T06:00:00.000Z","end":"2024-12-11T06:30:00.000Z"},"isWholeDayEvent":false,"content":{"summary":"Restmüll 2W","description":"Restmüll 2W","location":"Fritz-Reuter-Straße, Gescher","uid":"e1deb64e-e46a-41c5-b809-0ca89a61778c","recurrence_id":null,"rrule":null,"entity":"calendar.mull"},"icon":"mdi:trash-can-outline","color":"grey","type":"waste","label":"Restmüll","pattern":"Restmüll","idx":3}]}]

Anything else?

[tlanfer]

Alright i checked for other issues of the same problem earlier today, and in the time between me checking earlier and me creating the issue just now, someone created #483

[TheBassfly]

Thank you for your investigation

Maybe this is also the origin of my issue.

[idaho]

Hey, I haven't had time to dive deep into the details, but I think this is related to an issue where all displayed elements are re-rendered even if there is no ‘change’. This happens when something in the hass object changes. I'm not 100% sure, but since an update to the home assistant, I get a time update 2 times a minute, so the cards were forced to re-render because there was a change. Watching the hass object for changes is required when you change the theme, language or dark/light mode. The current fix now looks more closely at the changes and whether or not they contain changes relevant to the TrashCard. This should greatly reduce the rendering time. I have also changed the implementation of how the containers are initialised so that only the relevant information, such as time etc., is updated instead of the entire cards.
I think this will even solve the memory leak issue, if not i will have closer look. Please let me know if the new release (2.4.5) will solve the issue or not.

[TheBassfly]

Hey, I haven't had time to dive deep into the details, but I think this is related to an issue where all displayed elements are re-rendered even if there is no ‘change’. This happens when something in the hass object changes. I'm not 100% sure, but since an update to the home assistant, I get a time update 2 times a minute, so the cards were forced to re-render because there was a change. Watching the hass object for changes is required when you change the theme, language or dark/light mode. The current fix now looks more closely at the changes and whether or not they contain changes relevant to the TrashCard. This should greatly reduce the rendering time. I have also changed the implementation of how the containers are initialised so that only the relevant information, such as time etc., is updated instead of the entire cards. I think this will even solve the memory leak issue, if not i will have closer look. Please let me know if the new release (2.4.5) will solve the issue or not.

Thanks for the fix.

I'm just waiting for it to popup in HACS.

A workaround otherwise is to use v. 2.4.0. This also looks stable.

[tlanfer]

A quick test on my desktop looks good. I just added the card back on my tablets dashboard, and will report back soon if the memory usage is stable.

[nexeck]

Crashed again for me with v2.4.5, not sure how long it took. But after removing the card again it stopped crashing.