Github user ankurdave commented on the pull request:
https://github.com/apache/spark/pull/497#issuecomment-42397518
Thanks for the comments! I implemented your suggestions as well as some
cleanups I'd discussed with @rxin, then benchmarked it on 16 m2.4xlarge
machines with the uk-2007-05 web graph for 10 iterations of PageRank to make
sure it didn't introduce a performance regression.
Commit | Runtime +/- SEM
--- | ---
pre-unify-rdds (f96ea3a02f64e6e0fec4dcb1f498c6bcde4af699) | 418 +/- 17.1 s
unify-rdds (57202e81cc89056d86d9d9de18173b7553300a97) | 390.5 +/- 13.9 s
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