⚡ Bolt: [performance improvement] Pre-parse security headers config once#418
⚡ Bolt: [performance improvement] Pre-parse security headers config once#418EffortlessSteven wants to merge 1 commit intomainfrom
Conversation
The security headers middleware was allocating and parsing string configs into axum HeaderValues on every single request. By parsing this configuration statically during initialization into a cached struct and utilizing axum's reference-counted cloning for headers, we eliminate this CPU and memory overhead on the request path.
|
👋 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. Review rate limit: 0/1 reviews remaining, refill in 24 minutes and 54 seconds.Comment |
Test Results283 tests 245 ✅ 12m 28s ⏱️ Results for commit 119f6ee. |
1 participant
💡 What: Replaced per-request string parsing with cached HeaderValue structs in security headers middleware (
crates/app-httpandcrates/http-middleware).🎯 Why: Parsing security header strings (CSP, X-Frame-Options, etc) into HeaderValues allocates memory and CPU cycles on every single HTTP request.
📊 Impact: Eliminates redundant allocations and regex parsing for security headers. In
axum, HeaderValue cloning is O(1) by simply incrementing a reference count, resulting in measurable CPU savings under high request loads.🔬 Measurement: Verify changes via
cargo test -p app-http -p http-middleware. Inspect theCachedSecurityHeadersimplementation where it does initialization and caching.PR created automatically by Jules for task 6379522559849092699 started by @EffortlessSteven