add lazy ops docs #504
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add lazy ops docs #504
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innerlee
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Dec 30, 2020
docs/tutorials/4_data_pipeline.md
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| @@ -87,6 +87,39 @@ test_pipeline = [ | |||
| ] | |||
| ``` | |||
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| We have supported some lazy operators and encourage users to apply them. | |||
| Lazy ops record how the data should be processed, but it will postpone the processing on the raw data until the raw data forward `Fuse` stage. | |||
| Specifically, lazy ops avoid frequent reading and modification operation on the raw data, but process the raw data once in the final Fuse stage, thus accelerating data preprocessing greatly. | |||
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The effect on 320p K400 is obvious (but it could also be the memcache's efffect). I'll remove greatly frist. A comparison result may be posted in the future.
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@dreamerlin Do you remember the experiment？
Codecov Report
@@ Coverage Diff @@
## master #504 +/- ##
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Coverage 84.73% 84.73%
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Files 120 120
Lines 8407 8407
Branches 1373 1373
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Hits 7124 7124
Misses 935 935
Partials 348 348
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innerlee
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Dec 30, 2020
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fix #418