Add timestamps to minimal logging

RE: Add timestamps to minimal logging

Amanda Hsieh — Thu, 31 Oct 2024 19:23:52 GMT

Please create a new support for the latest issue which is away from the original scope.

RE: Add timestamps to minimal logging

Hugo.Dev — Wed, 30 Oct 2024 19:01:44 GMT

Ok, I see, as I thought CONFIG_LOG_MODE_MINIMAL excludes timestamps

Then I tried CONFIG_LOG_BACKEND_SHOW_COLOR=n but it does not make any diff.

About Memory footprint optimization we have already been there, not much more to optimize.

I wonder if I can enable the CONFIG_LOG_CUSTOM_HEADER option in order to define a minimal log with timestamps.
But when trying it I cannot make the compiler find my zephyr_custom_log.h file.

I added zephyr_include_directories in our CMakeLists.txt pointing to the directory holding the header file but it still fails to compile

Any ideas about what I can be missing?

Thanks

RE: Add timestamps to minimal logging

Amanda Hsieh — Wed, 30 Oct 2024 15:29:16 GMT

Hi,

[quote user=""]Is there a way to enable/add timestamps using minimal logging?[/quote]

Are you using CONFIG_LOG_BACKEND_FORMAT_TIMESTAMP or CONFIG_LOG_TIMESTAMP_64BIT? If so, see the configs dependencies

[quote user=""]Is there a way to disable some features of deferred logging to keep it as minimal as possible but logging timestamps?[/quote]

To minimize the memory usage of deferred logging, you can adjust the log level. Setting a higher default log level will reduce the number of log messages compiled into the firmware:

CONFIG_LOG_DEFAULT_LEVEL=3  # Set to INFO level

Logger module explains that logs can be filtered out based on module and severity level during compilation.

You can also disable some features that you don't need, such as coloring:

CONFIG_LOG_BACKEND_SHOW_COLOR=n

If the above still cannot help, you might consider disabling some other features or Memory footprint optimization.

Regards,
Amanda H.