jimczi commented on issue #14408:
URL: https://github.com/apache/lucene/issues/14408#issuecomment-2755375551

   I believe the question is whether we need to reconsider our assumptions when 
defaulting to random read advice in the current code. With the linked change, 
using `MADV_RANDOM` will exclude pages from the LRU list, but the original 
intent was simply to reduce the read-ahead size. 
   
   We explicitly use random advice in the vector format and FST files, which 
should, by default, benefit from LRU. Users should not be required to make 
changes to achieve the correct behavior.


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