[WIP] Add microbenchmarks and improve efficiency of core functions

Azure / azure-functions-python-worker

Python worker for Azure Functions.

http://aka.ms/azurefunctions

MIT License

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Open tonybaloney opened 2 years ago

tonybaloney commented 2 years ago

Introduces a pytest extension "pytest-benchmark" and runs microbenchmarks of key functions within the worker process.

This PR will also include some optimizations.

Fork of #1039 - so that should be merged first

tonybaloney commented 2 years ago

Comparison of first patch https://github.com/Azure/azure-functions-python-worker/pull/1041/commits/699bbbcd013116a272ed46e40a4fb5a7b93c0eaf refactoring the build_binding_protos() function with 0-9 bindings shows a consistent 10-15% reduction in execution time.

tonybaloney commented 2 years ago

Profiles for loader.index_function_app() are showing the function is relatively slow because:

the standard library inspect module is notoriously slow
The clean nones wrapper is quite inefficient
The JSON dumps happening on the function metadata is done eagerly (and not cached)?