You are viewing a plain text version of this content. The canonical link for it is here.

Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2020/12/18 07:28:21 UTC

[GitHub] [spark] zhengruifeng commented on pull request #30758: [SPARK-33773][ML][PYSPARK][WIP] expose intermediateStorageLevel in mllib - als,clf,reg

zhengruifeng commented on pull request #30758:
URL: https://github.com/apache/spark/pull/30758#issuecomment-747920173


   @srowen 
   In [SPARK-29967](https://issues.apache.org/jira/browse/SPARK-29967), @huaxingao and I found that there is a performance degradation in KMeans, if the dataset persisting level is changed from `OFF_HEAP` to default `MEMORY_AND_DISK` (due to double caching).
   And in some practical cases, I just want to (or try to) save some RAM by `MEMORY_ONLY_SER`.
   In general, I think this will hurt nothing and will be helpful in some cases.


----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org