Replaced nested loop join with hash join algorithm #1055
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Flow PHP - BenchmarksResults of the benchmarks from this PR are compared with the results from 1.x branch. Extractors+-----------------------+-------------------+------+-----+------------------+------------------+-----------------+
| benchmark | subject | revs | its | mem_peak | mode | rstdev |
+-----------------------+-------------------+------+-----+------------------+------------------+-----------------+
| AvroExtractorBench | bench_extract_10k | 1 | 3 | 35.299mb -0.03% | 852.279ms +0.12% | ±1.12% +189.56% |
| CSVExtractorBench | bench_extract_10k | 1 | 3 | 5.020mb -0.18% | 348.072ms +1.17% | ±0.66% -24.71% |
| JsonExtractorBench | bench_extract_10k | 1 | 3 | 5.174mb -0.17% | 1.065s -1.17% | ±0.55% -81.68% |
| ParquetExtractorBench | bench_extract_10k | 1 | 3 | 135.846mb -0.01% | 918.670ms +0.68% | ±0.76% +227.45% |
| TextExtractorBench | bench_extract_10k | 1 | 3 | 4.929mb -0.08% | 35.715ms -0.31% | ±0.52% -56.57% |
| XmlExtractorBench | bench_extract_10k | 1 | 3 | 4.935mb -0.08% | 433.850ms -1.05% | ±0.45% -87.55% |
+-----------------------+-------------------+------+-----+------------------+------------------+-----------------+
Transformers+-----------------------------+--------------------------+------+-----+------------------+-----------------+----------------+
| benchmark | subject | revs | its | mem_peak | mode | rstdev |
+-----------------------------+--------------------------+------+-----+------------------+-----------------+----------------+
| RenameEntryTransformerBench | bench_transform_10k_rows | 1 | 3 | 116.240mb -0.01% | 60.304ms -0.41% | ±1.75% +96.84% |
+-----------------------------+--------------------------+------+-----+------------------+-----------------+----------------+
Loaders+--------------------+----------------+------+-----+------------------+------------------+------------------+
| benchmark | subject | revs | its | mem_peak | mode | rstdev |
+--------------------+----------------+------+-----+------------------+------------------+------------------+
| AvroLoaderBench | bench_load_10k | 1 | 3 | 96.685mb -0.01% | 466.595ms +1.11% | ±0.96% +532.89% |
| CSVLoaderBench | bench_load_10k | 1 | 3 | 55.164mb -0.02% | 68.830ms +0.93% | ±0.42% -62.06% |
| JsonLoaderBench | bench_load_10k | 1 | 3 | 107.594mb -0.01% | 52.054ms +1.68% | ±2.74% +1572.23% |
| ParquetLoaderBench | bench_load_10k | 1 | 3 | 227.014mb -0.00% | 1.421s +0.57% | ±0.35% +220.52% |
| TextLoaderBench | bench_load_10k | 1 | 3 | 17.977mb -0.05% | 38.829ms -0.06% | ±0.55% -38.73% |
+--------------------+----------------+------+-----+------------------+------------------+------------------+
Building Blocks+-------------------------+----------------------------+------+-----+------------------+------------------+------------------+
| benchmark | subject | revs | its | mem_peak | mode | rstdev |
+-------------------------+----------------------------+------+-----+------------------+------------------+------------------+
| RowsBench | bench_chunk_10_on_10k | 2 | 3 | 87.061mb -0.01% | 3.684ms +7.61% | ±2.07% +26.82% |
| RowsBench | bench_diff_left_1k_on_10k | 2 | 3 | 102.659mb -0.01% | 188.652ms +0.83% | ±1.55% +581.30% |
| RowsBench | bench_diff_right_1k_on_10k | 2 | 3 | 85.379mb -0.01% | 19.152ms +1.98% | ±2.81% +1103.51% |
| RowsBench | bench_drop_1k_on_10k | 2 | 3 | 88.301mb -0.01% | 1.935ms +17.83% | ±1.37% -60.89% |
| RowsBench | bench_drop_right_1k_on_10k | 2 | 3 | 88.301mb -0.01% | 1.814ms +10.46% | ±1.36% -53.70% |
| RowsBench | bench_entries_on_10k | 2 | 3 | 85.413mb -0.01% | 2.793ms +10.76% | ±0.66% -32.24% |
| RowsBench | bench_filter_on_10k | 2 | 3 | 85.942mb -0.01% | 19.003ms +15.57% | ±1.72% -11.36% |
| RowsBench | bench_find_on_10k | 2 | 3 | 85.942mb -0.01% | 19.001ms +15.98% | ±1.01% -58.89% |
| RowsBench | bench_find_one_on_10k | 10 | 3 | 83.846mb -0.01% | 1.806μs +0.68% | ±2.57% -3.64% |
| RowsBench | bench_first_on_10k | 10 | 3 | 83.846mb -0.01% | 0.400μs 0.00% | ±0.00% 0.00% |
| RowsBench | bench_flat_map_on_1k | 2 | 3 | 93.196mb -0.01% | 12.556ms -0.35% | ±0.64% -36.79% |
| RowsBench | bench_map_on_10k | 2 | 3 | 122.567mb -0.01% | 61.155ms -2.52% | ±1.18% -51.12% |
| RowsBench | bench_merge_1k_on_10k | 2 | 3 | 86.462mb -0.01% | 1.189ms -5.27% | ±3.16% +783.84% |
| RowsBench | bench_partition_by_on_10k | 2 | 3 | 89.808mb -0.01% | 62.805ms +2.99% | ±0.68% -42.49% |
| RowsBench | bench_remove_on_10k | 2 | 3 | 88.563mb -0.01% | 3.832ms -0.87% | ±0.67% -49.78% |
| RowsBench | bench_sort_asc_on_1k | 2 | 3 | 83.989mb -0.09% | 40.751ms +2.08% | ±1.88% +204.51% |
| RowsBench | bench_sort_by_on_1k | 2 | 3 | 83.990mb -0.09% | 40.889ms +1.62% | ±3.39% +112.58% |
| RowsBench | bench_sort_desc_on_1k | 2 | 3 | 83.989mb -0.09% | 41.098ms +2.50% | ±0.53% -39.12% |
| RowsBench | bench_sort_entries_on_1k | 2 | 3 | 86.287mb -0.01% | 7.370ms -0.35% | ±0.86% -27.65% |
| RowsBench | bench_sort_on_1k | 2 | 3 | 83.846mb -0.01% | 28.899ms +0.48% | ±0.67% -63.12% |
| RowsBench | bench_take_1k_on_10k | 10 | 3 | 83.846mb -0.01% | 13.294μs -0.64% | ±0.36% -61.73% |
| RowsBench | bench_take_right_1k_on_10k | 10 | 3 | 83.846mb -0.01% | 15.900μs +0.15% | ±0.00% -100.00% |
| RowsBench | bench_unique_on_1k | 2 | 3 | 102.660mb -0.01% | 193.802ms +0.64% | ±1.60% +77.28% |
| NativeEntryFactoryBench | bench_entry_factory | 1 | 3 | 116.738mb -0.01% | 520.633ms -0.52% | ±0.22% -73.29% |
| NativeEntryFactoryBench | bench_entry_factory | 1 | 3 | 60.216mb -0.01% | 258.004ms -1.49% | ±1.82% +33.26% |
| NativeEntryFactoryBench | bench_entry_factory | 1 | 3 | 15.151mb -0.07% | 55.540ms -1.08% | ±0.57% -65.65% |
| TypeDetectorBench | bench_type_detector | 1 | 3 | 59.970mb -0.01% | 435.424ms +0.36% | ±0.15% -82.78% |
| TypeDetectorBench | bench_type_detector | 1 | 3 | 14.510mb -0.03% | 87.532ms +2.14% | ±0.83% +120.59% |
+-------------------------+----------------------------+------+-----+------------------+------------------+------------------+
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Change Log
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Description
This is just the first step to significantly improve join operation performance. Now flow join mechanism is using hash join algorithm, next one will be the sort-merge join.