Dev Builds » 20260208-1422

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host	Duration	Avg Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	CLI	PGN

Commit

Commit ID	6b6334ce8e0d1076f44ec786a06c8ee4e2757746
Author	Dieter Dobbelaere
Date	2026-02-08 14:22:21 UTC
Replace FNV-1a hash by faster and better MurmurHash64A. Replace FNV-1a hash algorithm by public domain MurmurHash64A, by Austin Appleby, which is faster and has better hash properties. This is also the default hash algorithm of GNU C++ Standard Library. Startup time on a given system (with x86-64-avx2 binaries) reduces from 378ms to 332ms (46ms faster). Hashing of the largest data input (46.1MB) goes from 44.2ms to 6.2ms, so about 7x faster. No functional change closes https://github.com/official-stockfish/Stockfish/pull/6579 Bench: 2570943