[GitHub] [jena] afs commented on issue #1470: Sub-par concurrent read performance with jena-iri

[GitBox <gi...@apache.org>]

afs commented on issue #1470:
URL: https://github.com/apache/jena/issues/1470#issuecomment-1206890457

   Are you calling jena-iri directly? 
   
   1/
   IRIx is an abstraction layer for replaceable IRI implementations.
   One such IRI3986 implementation is https://github.com/afs/x4ld/tree/main/iri4ld .
   Minimal object creation - one object to record the results per parser call and `RFC3986.create` is thread-safe.
   
   2/
   The parser pipeline which uses a cache to avoid duplicate work;
   https://github.com/apache/jena/blob/main/jena-arq/src/main/java/org/apache/jena/riot/system/FactoryRDFCaching.java#L62
   which incidentally has the benefit of reducing memory footprint (IIRC by about a 1/3).
   
   
   FYI: https://github.com/tarql/tarql/pull/99 upgrade tarql to Apache Jena 4.5.0


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