uschindler commented on PR #13894:
URL: https://github.com/apache/lucene/pull/13894#issuecomment-2410803086

   I was a bit afraid that this might have been caused by missing "prefetch()" 
implementation, but for MemorySegmentIndexInput also the random access slice 
uses the correct implementation.
   
   My only idea could be that there's a difference between the inlining 
decisions for *interface* `RandomAccessInput` and the class `IndexInput` (both 
implemented by MemorySegmentIndexInput, but the first is using 
`invokeinterface` which the latter is using `invokevirtual` bytecode). This 
could make a difference here, so we need a dump of which methods were inlined 
before/after.


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