LuciferYang commented on code in PR #46705:
URL: https://github.com/apache/spark/pull/46705#discussion_r1610906376
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core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala:
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@@ -328,16 +328,15 @@ private[spark] object TaskMetrics extends Logging {
*/
def fromAccumulators(accums: Seq[AccumulatorV2[_, _]]): TaskMetrics = {
val tm = new TaskMetrics
- for (acc <- accums) {
+ val (innerAccums, externalAccums) = accums.
Review Comment:
Should we extract a local variable `val nameToAccums = tm.nameToAccums`?
`tm.nameToAccums` is lazy and frequent access may have some cost.
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