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Benchmark for performance of subexpression elimination
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Preparing data for benchmarking ...
OpenJDK 64-Bit Server VM 11.0.9+11 on Mac OS X 10.15.6
Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
from_json as subExpr in Project:          Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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subExprElimination false, codegen: true           24827          25398         562          0.0   248271027.2       1.0X
subExprElimination false, codegen: false          25052          25704         625          0.0   250518603.6       1.0X
subExprElimination true, codegen: true             1540           1606          92          0.0    15403083.7      16.1X
subExprElimination true, codegen: false            1487           1535          53          0.0    14865051.6      16.7X

Preparing data for benchmarking ...
OpenJDK 64-Bit Server VM 11.0.9+11 on Mac OS X 10.15.6
Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
from_json as subExpr in Filter:           Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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subexpressionElimination off, codegen on          37327          38261         809          0.0   373266387.0       1.0X
subexpressionElimination off, codegen on          36126          37445        1575          0.0   361263987.0       1.0X
subexpressionElimination off, codegen on          20152          21596        1263          0.0   201522903.8       1.9X
subexpressionElimination off, codegen on          20799          20940         233          0.0   207993923.0       1.8X