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optimize algorithmic complexity

argoproj/argo-cd
Based on 4 comments
Go

Always consider computational complexity and performance when implementing algorithms. Look for opportunities to optimize through early exits, efficient comparison strategies, and avoiding nested loops that create O(N*M) complexity.

Algorithms Go

Reviewer Prompt

Always consider computational complexity and performance when implementing algorithms. Look for opportunities to optimize through early exits, efficient comparison strategies, and avoiding nested loops that create O(N*M) complexity.

Key optimization techniques:

  • Early loop exits: Break out of loops as soon as the desired condition is met rather than continuing unnecessary iterations
  • Efficient comparisons: Instead of concatenating strings for comparison, compare fields individually in priority order, returning early when differences are found
  • Avoid nested complexity: Be mindful of nested loops that can create quadratic or higher time complexity, especially when processing large datasets

Example of optimized comparison:

// Instead of string concatenation comparison:
return fmt.Sprintf("%s/%s/%s", left.Type, left.Message, left.Status) < 
       fmt.Sprintf("%s/%s/%s", right.Type, right.Message, right.Status)

// Use field-by-field comparison with early returns:
if left.Type != right.Type {
    return left.Type < right.Type
}
if left.Message != right.Message {
    return left.Message < right.Message  
}
return left.Status < right.Status

Example of early loop exit:

// Add break to avoid unnecessary iterations
for _, r := range resources {
    if condition_met {
        bAllNeedPrune = false
        break  // Exit early once condition is found
    }
}

Consider the algorithmic impact of your implementation choices, especially when dealing with collections or repeated operations that could affect system performance at scale.

4
Comments Analyzed
Go
Primary Language
Algorithms
Category

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