Speed up rdf sink (and more?) with lru_cache on text utils #447
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I noticed that kgx tsv to rdf conversions were surprisingly slow and ran it through a profiler, it turned out to be just the simple text conversion operations between different casing that were causing the slowdown. I added
@lru_cacheto the particular method that I was hitting, but then also the reverse function of it and a couple nearby that looked like they would benefit