Github user hhbyyh commented on the pull request:
https://github.com/apache/spark/pull/4419#issuecomment-97506569
Hi @jkbradley, for the last ut, "OnlineLDAOptimizer with toy data". It
costs about 300 ms on my PC, and I'm OK if it's considered redundant or
dangerous ( I ran it about 2000 times and all passed). Yet there's theoretical
possibility of failure.
And for performance test, I used 20_newsGroups * 1000 (about 11314000
articles), costs about 20 minutes on 6 node cluster. ( I believe there's still
room for improvement).
Thanks for helping clean the style and some important fix from your PR.
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