pauldoo commented on PR #16145:
URL: https://github.com/apache/lucene/pull/16145#issuecomment-6441130239

   I independently came across this problem and proposed a solution here: 
https://github.com/apache/lucene/pull/16804
   
   I've closed my PR in favor of this one.
   
   
   ---
   
   > A smaller SKIP shortens the blind window when a mostly cached file starts 
getting evicted, but none of our benchmarks exercise that transition. So I'd go 
with 128 as a middle ground but 256 is fine with me too.
   
   > I think it's worth keeping it at 64 because the narrower window provides 
meaningful feedback to the system.
   
   I would err on the side of setting a larger value in this PR to reduce the 
risk of introducing a performance regression for someone, while still being 
incrementally better than what is in main today. I chose an interval of 1024 in 
my work. I chose this as it has negligible impact on the hot data benchmarks, 
while still offering fast-enough response to sudden data eviction.


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