Github user viirya commented on the pull request:
https://github.com/apache/spark/pull/11578#issuecomment-199151979
The benchmark with `p = 0.01`.
With replacement = true:
Westmere E56xx/L56xx/X56xx (Nehalem-C)
range/sample/sum: Best/Avg Time(ms) Rate(M/s)
Per Row(ns) Relative
-------------------------------------------------------------------------------------------
range/sample/sum codegen=false 53888 / 56592 9.7
102.8 1.0X
range/sample/sum codegen=true 41614 / 42607 12.6
79.4 1.3X
With replacement = false:
Westmere E56xx/L56xx/X56xx (Nehalem-C)
range/sample/sum: Best/Avg Time(ms) Rate(M/s)
Per Row(ns) Relative
-------------------------------------------------------------------------------------------
range/sample/sum codegen=false 12982 / 13384 40.4
24.8 1.0X
range/sample/sum codegen=true 7074 / 7383 74.1
13.5 1.8X
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