2 Commits

Author	SHA1	Message	Date
xfy	5f470993ff	perf(handler): use RWMutex for FileInfoCache ... - Change FileInfoCache.mu from sync.Mutex to sync.RWMutex - Get method uses RLock for concurrent read access - Stats method uses RLock for read-only operation - Double-check pattern for lock upgrades (TTL expiry, LRU move) This improves concurrent read performance for the FileInfo cache, which is read-heavy in static file serving scenarios. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>	2026-04-30 16:15:39 +08:00
xfy	8cc3fdef6f	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>	2026-04-30 14:17:56 +08:00