[Question: Inkycal and high CPU-usage

[mattenz]

Describe the bug
After InkyCal has been running for a bit (sometimes hours, sometimes days), it seems to just stop refreshing after a while, however it looks like the Python process is still running under this scenario and consuming a lot of CPU (80-85%). At the moment I have to schedule reboots of the Pi to keep InkyCal refreshing reliably.

Screenshots
The logs of InkyCal show that its last recorded refresh was an hour later than what is shown on the display itself (in this case, the logs say 21:01 but the display shows 20:01 - no more log events are logged from that time tho):

23-06-2024 20:01:00 | inkycal.modules.inkycal_weather |  INFO: Image size: (476, 100)
23-06-2024 20:01:02 | inkycal.modules.inkycal_weather |  INFO: Connection test passed
23-06-2024 20:01:09 | inkycal.modules.inkycal_calendar |  INFO: Image size: (460, 444)
23-06-2024 20:01:11 | inkycal.modules.ical_parser |  INFO: loaded iCalendars from URLs
23-06-2024 20:01:12 | inkycal.modules.inkycal_feeds |  INFO: Image size: (460, 158)
23-06-2024 20:01:13 | inkycal.modules.inkycal_feeds |  INFO: Connection test passed
23-06-2024 20:01:14 | inkycal.main |  INFO: successful
23-06-2024 20:01:16 | inkycal.modules.inky_image |  INFO: merged given images into one
23-06-2024 21:01:00 | inkycal.modules.inkycal_weather |  INFO: Image size: (476, 100)
23-06-2024 21:01:02 | inkycal.modules.inkycal_weather |  INFO: Connection test passed
23-06-2024 21:01:12 | inkycal.modules.inkycal_calendar |  INFO: Image size: (460, 444)
23-06-2024 21:01:14 | inkycal.modules.ical_parser |  INFO: loaded iCalendars from URLs
23-06-2024 21:01:15 | inkycal.modules.inkycal_feeds |  INFO: Image size: (460, 158)
23-06-2024 21:01:16 | inkycal.modules.inkycal_feeds |  INFO: Connection test passed
23-06-2024 21:01:17 | inkycal.main |  INFO: successful
23-06-2024 21:01:19 | inkycal.modules.inky_image |  INFO: merged given images into one

Additional context
The Pi is running Bullseye. My config file is as below:

{
    "model": "epd_7_in_5_v2",
    "update_interval": 60,
    "orientation": 0,
    "info_section": true,
    "info_section_height": 30,
    "border_around_modules": false,
    "calibration_hours": [
        0,
        12,
        18
    ],
    "modules": [
        {
            "position": 1,
            "name": "Weather",
            "config": {
                "size": [
                    480,
                    120
                ],
                "api_key": "api",
                "location": "2191913",
                "round_temperature": true,
                "round_windspeed": true,
                "forecast_interval": "daily",
                "units": "metric",
                "hour_format": "24",
                "use_beaufort": true,
                "padding_x": 2,
                "padding_y": 10,
                "fontsize": 12,
                "language": "en"
            }
        },
        {
            "position": 2,
            "name": "Calendar",
            "config": {
                "size": [
                    480,
                    464
                ],
                "week_starts_on": "Monday",
                "show_events": true,
                "ical_urls": "http://outlook.office365.com/owa/calendar/<id>/calendar.ics",
                "ical_files": null,
                "date_format": "DMMM",
                "time_format": "HH:mm",
                "padding_x": 10,
                "padding_y": 10,
                "fontsize": 12,
                "language": "en"
            }
        },
        {
            "position": 3,
            "name": "Feeds",
            "config": {
                "size": [
                    480,
                    178
                ],
                "feed_urls": "http://blackpearl.fortress.local/rnzcustom.xml",
                "shuffle_feeds": true,
                "padding_x": 10,
                "padding_y": 10,
                "fontsize": 12,
                "language": "en"
            }
        }
    ]
}

I can't see any other instances running:

ps -aux | grep python
matt       255 40.4 18.2 174936 80352 ?        Rl   17:20 160:44 venv/bin/python inky_run.py
matt       739  0.0  3.8  52356 16884 ?        S    17:21   0:04 /usr/bin/python3 /usr/share/system-config-printer/applet.py
matt      1410  0.0  0.4   7432  1900 pts/1    S+   23:58   0:00 grep --color=auto python

[github-actions]

Hi there and welcome to Inkycal. Thanks for opening this issue. As this is your first issue in this repository, please read through the contributing guidelines

[aceisace]

Hi @mattenz and thanks for opening this issue.

I'm using the latest version of Inkycal (from yesterday) and even on my Zero W, I do not see any cpu-intensive task running there as the total load is less than 2% on average (see screenshot below);

Can you please check the following:

• Ensure crontab -e contains only one line
• Ensure only one instance of Inkycal is running
• Have you installed something else apart from Inkycal?
• Ensure you are using the latest version of Inkycal
• Ensure that your Raspberry Pi is getting a good wi-fi signal

My settings.json file is not that different from yours, so I believe it is related to something else. My build is also based on bullseye, hence it should be possible to reproduce the bug in some way

[mattenz]

I think I'm using the latest version...currently 2.0.3. This has been happening a while though on a previous version and I thought updating it a few weeks back to 2.0.3 might solve it but unfortunately not.

To answer your quesitons:

• Only one crontab-e entry
• Only one instance as far as I can see (there's only one Python entry in Top at least)
• Inkycal is the only extra thing installed on it
• 2.0.3
• Yes