test PR #498 (take 2) - #502
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================================================================================================
BypassMergeSortShuffleWriter write
================================================================================================
OpenJDK 64-Bit Server VM 1.8.0_191-8u191-b12-0ubuntu0.16.04.1-b12 on Linux 4.4.0-141-generic
Intel(R) Xeon(R) Platinum 8124M CPU @ 3.00GHz
BypassMergeSortShuffleWrite (in memory buffer) 10000: Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
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small dataset without spills on disk 3 / 3 3.5 282.5 1.0X
OpenJDK 64-Bit Server VM 1.8.0_191-8u191-b12-0ubuntu0.16.04.1-b12 on Linux 4.4.0-141-generic
Intel(R) Xeon(R) Platinum 8124M CPU @ 3.00GHz
BypassMergeSortShuffleWrite (with spill) 10000000: Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
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without transferTo 1945 / 1971 5.1 194.5 1.0X
with transferTo 1922 / 1942 5.2 192.2 1.0X
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UnsafeShuffleWriter write
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OpenJDK 64-Bit Server VM 1.8.0_191-8u191-b12-0ubuntu0.16.04.1-b12 on Linux 4.4.0-141-generic
Intel(R) Xeon(R) Platinum 8124M CPU @ 3.00GHz
UnsafeShuffleWriter with spills: Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
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small dataset without spills 15 / 15 0.1 14602.9 1.0X
OpenJDK 64-Bit Server VM 1.8.0_191-8u191-b12-0ubuntu0.16.04.1-b12 on Linux 4.4.0-141-generic
Intel(R) Xeon(R) Platinum 8124M CPU @ 3.00GHz
UnsafeShuffleWriter with spills: Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
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without transferTo 40535 / 40675 0.3 3020.1 1.0X
with transferTo 40324 / 40570 0.3 3004.4 1.0X
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