================================================================================================ Hive UDAF vs Spark AF ================================================================================================ OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz hive udaf vs spark af: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ hive udaf w/o group by 7504 7577 56 0.0 114496.1 1.0X spark af w/o group by 37 44 7 1.8 560.2 204.4X hive udaf w/ group by 5867 6075 194 0.0 89527.2 1.3X spark af w/ group by w/o fallback 40 46 6 1.6 608.7 188.1X spark af w/ group by w/ fallback 50 55 5 1.3 764.4 149.8X ================================================================================================ ObjectHashAggregateExec vs SortAggregateExec - typed_count ================================================================================================ OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz object agg v.s. sort agg: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ sort agg w/ group by 41856 42278 597 2.5 399.2 1.0X object agg w/ group by w/o fallback 12479 12754 320 8.4 119.0 3.4X object agg w/ group by w/ fallback 25981 26058 109 4.0 247.8 1.6X sort agg w/o group by 7351 7473 116 14.3 70.1 5.7X object agg w/o group by w/o fallback 7095 7406 490 14.8 67.7 5.9X ================================================================================================ ObjectHashAggregateExec vs SortAggregateExec - percentile_approx ================================================================================================ OpenJDK 64-Bit Server VM 11.0.10+9-LTS on Linux 5.4.0-1043-azure Intel(R) Xeon(R) Platinum 8171M CPU @ 2.60GHz object agg v.s. sort agg: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative ------------------------------------------------------------------------------------------------------------------------ sort agg w/ group by 952 1047 92 2.2 453.9 1.0X object agg w/ group by w/o fallback 829 957 90 2.5 395.2 1.1X object agg w/ group by w/ fallback 972 1107 128 2.2 463.5 1.0X sort agg w/o group by 732 858 98 2.9 349.1 1.3X object agg w/o group by w/o fallback 770 897 92 2.7 367.4 1.2X