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GenerateExec benchmark
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OpenJDK 64-Bit Server VM 1.8.0_282-b08 on Linux 5.4.0-1043-azure
Intel(R) Xeon(R) Platinum 8272CL CPU @ 2.60GHz
GenerateExec Benchmark:                   Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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GenerateExec Benchmark wholestage off            102348         105601        1650          1.0        1023.5       1.0X
GenerateExec Benchmark wholestage on              56423          58047        1028          1.8         564.2       1.8X