[Custom Issue]: Generate a peformance timeline of the top routines

[mo-mguidolin]

Contact Details

michele.guidolin@metoffice.gov.uk

Are there any linked Issues or Pull Requests?

No response

Brief description

It would be useful if Vernier had the possibility to generate a timeline of the top routines to understand if there is a sudden slowdown.

For example, if there is model that have the following routines structure:

• init
• read_netcdf
• write_netcdf
• iterate_day
  • physics1
  • physics2
  • physics3
• finilize

If would be nice to have a report that show:

When(s)  What       How Long (s)
10.2     init         50.3
60.5     read_netcdf  10.1
70.5     read_netcdf  105.1
175.5    iterate_day  205.0
- 178    physics1     3.1
- 181    physics2     100.1
- 281    physics3     90.0
380.5    iterate_day  200.0
580.5    iterate_day  205.0
....

Extra feature would be to crate histogram of for example iterate_day to see if there are differen "mode" on the ieration.
Or have some metadata API that tell which file is being open that take longer.

Further details of the issue.

No response