pingmessage: performance improvements #110
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Helps with #101 (although Python's I/O can't really ever be completely as fast as compiled code). |
patrickelectric
approved these changes
Jul 26, 2021
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It looks ok to me, I would just recommend to break the commit in multiple commits since there is a couple of things that are changing to improve performance, but they are not totally clear.
An example of commit organization:
- Change sum algorithm to built-in function
- Use
__slots__declaration to improve access speed- Reason, why, when and etc
- Break parser logic into a callback dictionary
- Reason, why and etc
- Change comparison from
isto==since...
ping @Williangalvani
Reduces memory overhead (no internal __dict__), and improves variable access speeds.
…ple of callbacks Swaps up to 11 conditionals per byte with a consistent single tuple index and function call.
patrickelectric
approved these changes
Jul 29, 2021
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thanks for the updates!
patrickelectric
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Nov 30, 2021
This should be zero and not one, the error was introduced in a rework on bluerobotics#110: https://github.com/bluerobotics/ping-python/pull/110/files#diff-ed2c04d88418d534a1ae078d8a994d08848d370ca71de0d0af5ab5f7b6f19d99R345 Signed-off-by: Patrick José Pereira <[email protected]>
patrickelectric
added a commit
that referenced
this pull request
Nov 30, 2021
This should be zero and not one, the error was introduced in a rework on #110: https://github.com/bluerobotics/ping-python/pull/110/files#diff-ed2c04d88418d534a1ae078d8a994d08848d370ca71de0d0af5ab5f7b6f19d99R345 Signed-off-by: Patrick José Pereira <[email protected]>
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Up to 27% faster for Ping360 on 2M baud serial connection
calculate_checksumto use built insuminstead of manual loop__slots__toPingParserparse_byteto directly call the relevant function for the current stateERRORstatus code to be in line with ping-cpp