vkhazin / dotnet-traditional-vs-modern

Modern vs. Traditional Performance

Objectives

• Convert two lists into a dictionary and compare different approaches
• Validate assumptions about dotnet performance using different approaches
• Implement a couple versions of the code: traditional, modern, and functional
• Compare performance of the approaches: run-time and memory allocation
• Use the same IDE, input, and the same host for profiling purposes

Method Used

• Implement three versions of the code:
  • Traditional
  • Modern
  • Functional
• Run a profile to compare timeline and memory allocation
• JetBrain Rider Profiler on Ubuntu 22.04 was used for testing purposes
  • 16 Cores 11th Gen Intel(R) Core(TM) i7-11850H @ 2.50GHz
  • 32GB RAM

Findings

• Timeline profiler results

• Traditional memory allocation profiler results

• Modern memory allocation profiler results

• Functional memory allocation profiler results

Conclusions

• To my surprise it is not in favour of modern nor functional implementation
• The traditional was about 5 times faster than the modern or functional
• The traditional consumed less than half the memory of the modern or functional
• Have I missed something optimizing the modern or the functional approach?