zhengruifeng commented on pull request #28458:
URL: https://github.com/apache/spark/pull/28458#issuecomment-624987233
Merged to master
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zhengruifeng commented on pull request #28458:
URL: https://github.com/apache/spark/pull/28458#issuecomment-624985569
This PR is a update of https://github.com/apache/spark/pull/27374, it can
avoid performance regression on sparse datasets by default (with blockSize=1).
On dense
zhengruifeng commented on pull request #28458:
URL: https://github.com/apache/spark/pull/28458#issuecomment-624487752
retest this please
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zhengruifeng commented on pull request #28458:
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retest this please
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zhengruifeng commented on pull request #28458:
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performace test on the first 10,000 instances of
`webspam_wc_normalized_trigram`
code:
```scala
val df = spark.read.option("numFeatures",
zhengruifeng commented on pull request #28458:
URL: https://github.com/apache/spark/pull/28458#issuecomment-624426340
performace test on
[`epsilon_normalized.t`](https://www.csie.ntu.edu.tw/~cjlin/libsvmtools/datasets/binary.html)
code:
```scala
import
