Francisco Geiman Thiesen 0ab7e2d701 WIP: template append_raw on size for compile-time-inlined memcpy ...

Add append_raw_n<N>(const char*) which propagates the key length as a
template parameter, letting the compiler emit a fully inlined memcpy
with a constant size (direct loads/stores) instead of the size-passed-
as-runtime-arg variant which sometimes fell back to a libc memcpy
dispatch.

Use it in the reflection struct atom for both first_key and rest_key
(both are compile-time constants from define_static_string).

Measured (TRUE A/B, 7 alternating rounds in single docker invocation,
two independent runs combined):
  CITM:    baseline ~4395 -> patched ~4791 MB/s  (+9%)
           Glaze    ~4810 MB/s -> simdjson now at PARITY with Glaze
                                  (within +/- 3% noise across runs)
  Twitter: still well ahead of Glaze, no change from baseline

Output is byte-identical, all reflection comprehensive tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

2026-05-05 15:45:08 -07:00

..

simdjson

WIP: template append_raw on size for compile-time-inlined memcpy

2026-05-05 15:45:08 -07:00

simdjson.h

moving the builder files in their own directory (#2578)

2026-01-07 18:08:11 -05:00