⚡ Bolt: [performance improvement] Cache security header parsing on hot path#429
⚡ Bolt: [performance improvement] Cache security header parsing on hot path#429EffortlessSteven wants to merge 1 commit intomainfrom
Conversation
Pre-parses strings into `HeaderValue` instances at startup and clones them per-request to avoid allocating and parsing string-based configurations on the hot path in Axum.
|
👋 Jules, reporting for duty! I'm here to lend a hand with this pull request. When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down. I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job! For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with New to Jules? Learn more at jules.google/docs. For security, I will only act on instructions from the user who triggered this task. |
|
Warning You have reached your daily quota limit. Please wait up to 24 hours and I will start processing your requests again! |
|
Warning Rate limit exceeded
To keep reviews running without waiting, you can enable usage-based add-on for your organization. This allows additional reviews beyond the hourly cap. Account admins can enable it under billing. ⌛ How to resolve this issue?After the wait time has elapsed, a review can be triggered using the We recommend that you space out your commits to avoid hitting the rate limit. 🚦 How do rate limits work?CodeRabbit enforces hourly rate limits for each developer per organization. Our paid plans have higher rate limits than the trial, open-source and free plans. In all cases, we re-allow further reviews after a brief timeout. Please see our FAQ for further information. ℹ️ Review info⚙️ Run configurationConfiguration used: Organization UI Review profile: ASSERTIVE Plan: Pro Run ID: 📒 Files selected for processing (6)
✨ Finishing Touches🧪 Generate unit tests (beta)
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
Test Results283 tests 245 ✅ 11m 11s ⏱️ Results for commit 5e59a5f. |
1 participant
Scope
Type: perf
Intent: Cache header configuration evaluation on the Axum middleware hot path.
Touchpoints: crates/app-http/src/lib.rs, crates/app-http/src/middleware/security_headers.rs, crates/http-middleware/src/security_headers.rs
Evidence: Code review,
cargo test -p app-http -p http-middleware💡 What: Caches security headers configuration validation and parsing by evaluating
HeaderValue::from_stronce at server start rather than per request in Axum middleware.🎯 Why:
axum::middleware::from_fnoperates on the hot path for every request. By extracting string parsing and evaluatingHeaderValue::from_stroutside of the per-request handler, we swap CPU-intensive error-checked string evaluation for cheapHeaderValue::clone()calls (which are basically atomic RC bumps).📊 Impact: Reduces per-request middleware overhead for security headers, eliminating up to 10 configuration string parsings per HTTP request.
🔬 Measurement: Review changes to
crates/app-http/src/middleware/security_headers.rsandcrates/http-middleware/src/security_headers.rs. All tests pass.PR created automatically by Jules for task 10441139280719778873 started by @EffortlessSteven