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Coalesced RDD , large scale
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OpenJDK 64-Bit Server VM 17.0.14+7-LTS on Linux 6.8.0-1020-azure
AMD EPYC 7763 64-Core Processor
Coalesced RDD:                                Best Time(ms)   Avg Time(ms)   Stdev(ms)    Rate(M/s)   Per Row(ns)   Relative
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Coalesce Num Partitions: 100 Num Hosts: 1               130            132           2          0.8        1300.2       1.0X
Coalesce Num Partitions: 100 Num Hosts: 5               104            105           1          1.0        1043.1       1.2X
Coalesce Num Partitions: 100 Num Hosts: 10               89             90           0          1.1         895.0       1.5X
Coalesce Num Partitions: 100 Num Hosts: 20               91             94           5          1.1         913.1       1.4X
Coalesce Num Partitions: 100 Num Hosts: 40               98            100           2          1.0         979.8       1.3X
Coalesce Num Partitions: 100 Num Hosts: 80               85             88           4          1.2         852.5       1.5X
Coalesce Num Partitions: 500 Num Hosts: 1               307            312           5          0.3        3073.4       0.4X
Coalesce Num Partitions: 500 Num Hosts: 5               144            146           2          0.7        1438.2       0.9X
Coalesce Num Partitions: 500 Num Hosts: 10              108            111           5          0.9        1078.9       1.2X
Coalesce Num Partitions: 500 Num Hosts: 20               99             99           1          1.0         985.7       1.3X
Coalesce Num Partitions: 500 Num Hosts: 40               94             95           1          1.1         935.7       1.4X
Coalesce Num Partitions: 500 Num Hosts: 80               93             97           5          1.1         929.0       1.4X
Coalesce Num Partitions: 1000 Num Hosts: 1              525            529           5          0.2        5253.4       0.2X
Coalesce Num Partitions: 1000 Num Hosts: 5              175            178           4          0.6        1747.4       0.7X
Coalesce Num Partitions: 1000 Num Hosts: 10             147            149           2          0.7        1465.4       0.9X
Coalesce Num Partitions: 1000 Num Hosts: 20             114            115           2          0.9        1136.8       1.1X
Coalesce Num Partitions: 1000 Num Hosts: 40             100            103           6          1.0         996.5       1.3X
Coalesce Num Partitions: 1000 Num Hosts: 80              96             96           1          1.0         960.1       1.4X
Coalesce Num Partitions: 5000 Num Hosts: 1             2340           2499         263          0.0       23399.3       0.1X
Coalesce Num Partitions: 5000 Num Hosts: 5              684            692           7          0.1        6837.4       0.2X
Coalesce Num Partitions: 5000 Num Hosts: 10             377            387          11          0.3        3765.2       0.3X
Coalesce Num Partitions: 5000 Num Hosts: 20             235            238           4          0.4        2353.0       0.6X
Coalesce Num Partitions: 5000 Num Hosts: 40             165            173          11          0.6        1649.3       0.8X
Coalesce Num Partitions: 5000 Num Hosts: 80             147            147           0          0.7        1466.6       0.9X
Coalesce Num Partitions: 10000 Num Hosts: 1            4236           4283          42          0.0       42358.9       0.0X
Coalesce Num Partitions: 10000 Num Hosts: 5            1407           1411           3          0.1       14067.5       0.1X
Coalesce Num Partitions: 10000 Num Hosts: 10            718            723           7          0.1        7181.1       0.2X
Coalesce Num Partitions: 10000 Num Hosts: 20            398            402           7          0.3        3976.9       0.3X
Coalesce Num Partitions: 10000 Num Hosts: 40            245            252           7          0.4        2445.2       0.5X
Coalesce Num Partitions: 10000 Num Hosts: 80            169            175          10          0.6        1689.3       0.8X


