Github user witgo commented on the pull request:
https://github.com/apache/spark/pull/332#issuecomment-40863767
@marmbrus
You are right ,macros is faster than the inline method. There's a short gap.
the [test
code](https://github.com/witgo/spark/blob/logger/core/src/test/scala/org/apache/spark/LoggingSuite.scala)
the results =>
```
1
logString: 38987.745 ms
logInline: 14.198 ms
logFunction0: 16.22 ms
logMacros: 12.312 ms
2
logString: 39037.412 ms
logInline: 14.349 ms
logFunction0: 16.2 ms
logMacros: 12.249 ms
3
logString: 39169.036 ms
logInline: 14.324 ms
logFunction0: 16.871 ms
logMacros: 11.324 ms
```
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