Charles KWON OhJun
5b378318a0
rdd.go: - getWA() cached type assertion (avoid repeated interface check) - waCache stores last WA pointer → O(1) for repeated calls strings.go: - spacesCache[257]: pre-built space strings for pad sizes 0-256 - spaces(n) returns cached string (no Repeat allocation) - PadR/PadL use spaces() for fill=" " (most common case) - Str() uses spaces() for right-padding missing.go: - fmt_int64: stack-allocated [20]byte array (was heap make([]byte)) - Reverse iteration (no prepend overhead) - PadC uses spaces() for left/right padding Benchmark (ext4, home dir): 10K APPEND: 28ms → 26ms (Harbour 27ms!) 50K APPEND: 130ms → 113ms (13% improvement) 50K SCAN: 24ms → 23ms 50K DUPKEY: 42ms → 35ms (17% improvement) CDX SCOPE: 12ms → 10ms (17% improvement) 82/82 stress PASS. 14 packages ALL PASS. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>