gabotechs commented on PR #19761:
URL: https://github.com/apache/datafusion/pull/19761#issuecomment-3742364438

   > For.tpcds, it seems mostly speedups but also some (4x) slowdowns. Any way 
we could avoid those?
   
   I would not trust too much the benchmarks I reported in the PR description, 
for the good and for the bad, I've seen that the same query can take 300ms or 
2500ms depending on whatever my specific laptop decides to be doing while the 
benchmark runs.
   
   I'd like to run the TPC-DS benchmarks using robot Andrew, which I assume 
they run in a more stable environment than my laptop.


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