monkeyboy123 commented on code in PR #46705: URL: https://github.com/apache/spark/pull/46705#discussion_r1610987703
########## core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala: ########## @@ -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: Hmm, I does not understand what you mean? tm.nameToAccums is a fixed size LinkedHashMap, why do we need create another local variable?Did I miss something else? ########## core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala: ########## @@ -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. Hmm, I does not understand what you mean? tm.nameToAccums is a fixed size LinkedHashMap, why do we need create another local variable?Did I miss something else? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org