Commits on Sep 28, 2024

1. Add a standardized benchmark command speedtest. …

   `speedtest [threads] [hash_MiB] [time_s]`. `threads` default to system concurrency. `hash_MiB` defaults to `threads*128`. `time_s` defaults to 150.
   
   Intended to be used with default parameters, as a stable hardware benchmark.
   
   Example:
   ```
   C:\dev\stockfish-master\src>stockfish.exe speedtest
   Stockfish dev-20240928-nogit by the Stockfish developers (see AUTHORS file)
   info string Using 16 threads
   Warmup position 3/3
   Position 258/258
   ===========================
   Version                    : Stockfish dev-20240928-nogit
   Compiled by                : g++ (GNUC) 13.2.0 on MinGW64
   Compilation architecture   : x86-64-vnni256
   Compilation settings       : 64bit VNNI BMI2 AVX2 SSE41 SSSE3 SSE2 POPCNT
   Compiler __VERSION__ macro : 13.2.0
   Large pages                : yes
   User invocation            : speedtest
   Filled invocation          : speedtest 16 2048 150
   Available processors       : 0-15
   Thread count               : 16
   Thread binding             : none
   TT size [MiB]              : 2048
   Hash max, avg [per mille]  :
       single search          : 40, 21
       single game            : 631, 428
   Total nodes searched       : 2099917842
   Total search time [s]      : 153.937
   Nodes/second               : 13641410
   ```
   
   -------------------------------
   
   Small unrelated tweaks:
    - Network verification output is now handled as a callback.
    - TT hashfull queries allow specifying maximum entry age.
   
   No functional changes.

   

   Sopel97 committed Sep 28, 2024
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