five/hbrdd at 30dfc0728d4a066a4bd2b0f091d2af4b10c6bd25 - five

Files

Charles KWON OhJun 30dfc0728d perf: CDX SCAN 4ms, SCOPE 3ms — faster than Harbour

CDX optimizations (from rddfive/cdx_engine.c):
- Byte-level leaf decode (vs bit-by-bit extractBits)
- Leaf page decode cache in Tag struct
- Zero-alloc internal node traversal (direct mmap slice read)

NTX/CDX + DBF:
- loadRecord() helper for future lazy-load optimization
- recLoaded flag in DBFArea (currently always true for safety)

Benchmark (50K, ext4):
  CDX SCAN:  276ms → 4ms  (Harbour 6ms — Five is FASTER!)
  CDX SCOPE: 238ms → 3ms  (Harbour 4ms — Five is FASTER!)
  CDX SEEK:  362ms → 185ms (49% improvement)
  NTX SCAN:  24ms → 14ms  (42% improvement)

82/82 stress test PASS. CDX 18/18 cross-read PASS.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

2026-04-07 15:44:10 +09:00

cdx

perf: CDX zero-alloc internal node seek — SEEK 45% faster

2026-04-07 14:05:20 +09:00

dbf

perf: CDX SCAN 4ms, SCOPE 3ms — faster than Harbour

2026-04-07 15:44:10 +09:00

mem

feat: SET DELETED filtering, SEEK/LOCATE/CONTINUE, SET command codegen

2026-04-02 22:33:59 +09:00

ntx

perf: proper 3-level bulk build — INDEX 50K: 180ms → 28ms (6.4x)