Github user mallman commented on the issue:

    https://github.com/apache/spark/pull/14690
  
    >> Btw I've noticed a significant performance difference between 
ListingFileCatalog and TableFileCatalog's implementation of ListFiles. The 
difference seems to be that ListingFileCatalog parallelizes file listing (which 
is slower locally, but presumably faster when listing against remote storage on 
a larger cluster).
    
    > I'm aware of that and have created a patch to address that, I just 
haven't pushed it yet.
    
    I just pushed this commit. LMK what you think.


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