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v3: Improve performance of helper functions #3086

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merged 2 commits into from
Jul 23, 2024
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@gaby gaby commented Jul 23, 2024

Description

  • Improve performance of getOffer helper function.
  • Improve performance of paramsMatch helper function.
  • Only add benchmark comments if branch is not from a fork.
  • Note: Most of these optimizations were found using GPT4o.

Changes introduced

  • Benchmarks: Describe any performance benchmarks and improvements related to the changes.

Type of change

  • Performance improvement (non-breaking change which improves efficiency)

@gaby gaby added this to the v3 milestone Jul 23, 2024
@gaby gaby requested a review from a team as a code owner July 23, 2024 13:59
@gaby gaby requested review from sixcolors, ReneWerner87 and efectn and removed request for a team July 23, 2024 13:59
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coderabbitai bot commented Jul 23, 2024

Walkthrough

This update enhances the codebase by refining workflows, improving performance, and clarifying naming conventions. Key changes include conditional logic for commenting on pull requests in GitHub Actions, a clearer target name in the Makefile for markdown formatting, and optimizations to functions and benchmarks in the Go code. These modifications collectively improve code efficiency, readability, and maintenance.

Changes

File Change Summary
.github/workflows/benchmark.yml Updated comment-on-alert to conditionally allow comments based on whether the branch is from a forked repository.
Makefile Renamed target from format to markdown to clarify its purpose in linting markdown files.
helpers.go Enhanced paramsMatch and getOffer functions for better performance and clarity, optimized string handling and control flow.
helpers_test.go Added memory allocation reporting and timer resets to various benchmark tests, improving measurement accuracy.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant GitHubActions
    participant Codebase

    User->>GitHubActions: Create Pull Request
    GitHubActions->>Codebase: Check if forked
    alt Not a Fork
        GitHubActions->>User: Allow comment on PR
    else Forked
        GitHubActions->>User: No comment allowed
    end
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🐇 “In the code where changes abound,
A clearer path we've finally found.
With comments now so smartly set,
And benchmarks that we won't forget.
In markdown format, we take delight,
As code flows smoothly, oh what a sight!” 🐇✨


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codecov bot commented Jul 23, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.64%. Comparing base (8c3f81e) to head (7bde210).

Additional details and impacted files
@@            Coverage Diff             @@
##             main    #3086      +/-   ##
==========================================
+ Coverage   83.62%   83.64%   +0.01%     
==========================================
  Files         115      115              
  Lines        8332     8339       +7     
==========================================
+ Hits         6968     6975       +7     
  Misses       1041     1041              
  Partials      323      323              
Flag Coverage Δ
unittests 83.64% <100.00%> (+0.01%) ⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 8c3f81e and 7bde210.

Files selected for processing (4)
  • .github/workflows/benchmark.yml (1 hunks)
  • Makefile (1 hunks)
  • helpers.go (5 hunks)
  • helpers_test.go (11 hunks)
Files skipped from review due to trivial changes (1)
  • Makefile
Additional comments not posted (21)
.github/workflows/benchmark.yml (1)

68-69: Conditional Commenting on PRs

The conditional expression for comment-on-alert ensures comments are only posted if the branch is not a fork. This is a good practice to avoid irrelevant comments on forked branches.

helpers_test.go (11)

141-142: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


210-211: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


324-325: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


368-369: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


384-385: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


467-468: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


481-482: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


544-545: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


563-564: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


574-575: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.


589-590: Enhanced Benchmark Accuracy

The addition of b.ReportAllocs() and b.ResetTimer() at the beginning of the benchmark function improves the accuracy of memory allocation reporting and timing.

helpers.go (9)

301-301: Improved Performance in paramsMatch

The use of utils.EqualFold directly on the specParam and key improves performance by avoiding unnecessary string conversions.


431-434: Optimized Quality Parsing

The optimized parsing of the quality parameter (q) reduces the number of string conversions and improves efficiency.


439-441: Efficient Header Parameter Handling

The use of a pooled headerParams instance and clearing it before use improves memory efficiency.


443-450: Optimized Parameter Handling

The optimized handling of header parameters, including the direct comparison of the q parameter length and first byte, improves performance.


462-462: Efficient Whitespace Trimming

The use of bytes.TrimSpace for trimming whitespace is more efficient and appropriate for the intended use.


466-471: Optimized Specificity Determination

The determination of specificity using byte comparisons instead of string comparisons enhances performance.


482-488: Efficient Accepted Types Handling

The creation and sorting of accepted types based on quality and specificity is efficient and maintains the original functionality.


498-506: Simplified Return Mechanism

The simplified return mechanism for the first matching offer improves control flow and readability.


514-514: Efficient Return Mechanism

The direct return of an empty string when no offers match is efficient and clear.

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⚠️ Performance Alert ⚠️

Possible performance regression was detected for benchmark.
Benchmark result of this commit is worse than the previous benchmark result exceeding threshold 1.50.

Benchmark suite Current: 7bde210 Previous: 8c3f81e Ratio
Benchmark_Compress_Levels/Zstd_LevelDefault - B/op 1 B/op 0 B/op +∞
Benchmark_Compress_Levels/Zstd_LevelBestCompression - B/op 1 B/op 0 B/op +∞

This comment was automatically generated by workflow using github-action-benchmark.

@ReneWerner87 ReneWerner87 merged commit 486304d into main Jul 23, 2024
15 of 17 checks passed
gaby added a commit that referenced this pull request Jul 25, 2024
* Improve performance of helper functions

* Fix issue with PR comments from forks
@efectn efectn deleted the optimizations branch September 1, 2024 11:39
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2 participants