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8cc3fdef6f
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perf(handler): optimize static file serving performance
- Add pathPrefixLen for zero-allocation path stripping
- Precompute ETag in FileCache.Set, reuse on cache hits
- Add MIME LRU cache with O(1) operations using container/list
- Remove sharded cache (eager LRU was slower than single-lock)
- Add FileInfo cache to reduce os.Stat calls (TTL-only strategy)
- Adjust test expectations for normalized root path format
Benchmark results: Lookup 12.7µs → 10.6µs (16% improvement)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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2026-04-30 14:17:56 +08:00 |
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