LuciferYang commented on PR #48128:
URL: https://github.com/apache/spark/pull/48128#issuecomment-2354770718
@wangyum @George314159
```scala
val benchmark = new Benchmark("Benchmark Map", size, minNumIters = 30)
benchmark.addCase("HashMap") { _ =>
keys.foreach { key => map1.getOrElseUpdate(key, new Object()) }
}
```
Is this benchmark primarily testing the performance of the `get`? After the
first iteration, all key-value pairs are already in the map, so subsequent
iterations should not reach the `OrElseUpdate` branch?
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