Github user viirya commented on the pull request:
https://github.com/apache/spark/pull/4712#issuecomment-89326238
I have tried to compare the performance difference. However, no significant
improvement can be found.
Data: 6000 rows of `complexFieldAndType1` in `TestJsonData`. Call `jsonRDD`
to create two json RDDs.
old:
29 seconds, 714 milliseconds
29 seconds, 654 milliseconds
29 seconds, 590 milliseconds
29 seconds, 556 milliseconds
29 seconds, 461 milliseconds
new:
29 seconds, 272 milliseconds
29 seconds, 358 milliseconds
28 seconds, 991 milliseconds
29 seconds, 118 milliseconds
28 seconds, 926 milliseconds
Because this pr can't bring much performance improvement, I am closing it
now.
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