nixos/doc/rl-2505: document retroarch refactoring changes #361421

Evaluator Performance Report

stat	before	after	Δ	Δ%
cpuTime	789.50	794.48	↗ 4.98	0.63%
envs-bytes	24,157,230,712	24,157,230,712	0
envs-elements	1,282,787,509	1,282,787,509	0
envs-number	868,433,165	868,433,165	0
gc-heapSize	71,458,332,672	71,441,555,456	↘ 16,777,216	-0.02%
gc-totalBytes	150,645,831,296	150,645,835,888	↗ 4,592	0.00%
list-bytes	3,513,388,872	3,513,388,872	0
list-concats	90,343,358	90,343,358	0
list-elements	439,173,609	439,173,609	0
nrAvoided	1,004,641,118	1,004,641,118	0
nrFunctionCalls	797,832,532	797,832,532	0
nrLookups	418,287,011	418,287,011	0
nrOpUpdateValuesCopied	2,164,189,365	2,164,189,365	0
nrOpUpdates	101,646,770	101,646,770	0
nrPrimOpCalls	416,329,140	416,329,140	0
nrThunks	1,261,798,302	1,261,798,302	0
sets-bytes	49,423,809,072	49,423,809,072	0
sets-elements	2,900,711,529	2,900,711,529	0
sets-number	188,276,538	188,276,538	0
sizes-Attr	16	16	0
sizes-Bindings	16	16	0
sizes-Env	16	16	0
sizes-Value	24	24	0
symbols-bytes	3,365,415	3,365,415	0
symbols-number	187,865	187,865	0
values-bytes	39,742,815,264	39,742,815,264	0
values-number	1,655,950,636	1,655,950,636	0