System.IO.Ports.ReadByte()
Nobody has claimed this yet.
Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 35/100
- Issue type
- Bug
- Clarity
- Needs clarification
- Activity status
- Stale
- Tech stack
- csharp
- Domain
- operating-systems
Research direction
Start at the System.IO.Ports.ReadByte() entry point and compare its behavior between .NET 6 and .NET 7/8/9. Reproduce the reported performance difference, then investigate why SerialPort.Read produces different characters; done means identifying and fixing the regression with a regression test covering both performance behavior and received data.
Written by the indexing model from the issue text.
Description
Description
Hello, I have really big performance issues for method ReadByte() - the performance is more than 10 times slower.
The problem were tested and confirmed from my side on
NET7/8/9
Last stable version is NET6
I tried to use serialPort.Read instead, but when I converted it to chars the recieved chars are different (last part in video)
https://github.com/user-attachments/assets/cae65e0c-c574-41c6-8e68-220fc058b715
NET6 example
NET9 example
- Dominant language
- C#
- Stars
- 18.3k
- Forks
- 5.6k
- PR merge metrics
- PR metrics pending
Contributor guide
First steps
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- Open a pull request that references the issue number.
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