vanzin commented on a change in pull request #26058: [SPARK-10614][core] Add
monotonic time to Clock interface.
URL: https://github.com/apache/spark/pull/26058#discussion_r332718848
##########
File path: core/src/main/scala/org/apache/spark/ExecutorAllocationManager.scala
##########
@@ -288,7 +288,7 @@ private[spark] class ExecutorAllocationManager(
}
// Update executor target number only after initializing flag is unset
- updateAndSyncNumExecutorsTarget(clock.getTimeMillis())
+ updateAndSyncNumExecutorsTarget(clock.nanoTime())
Review comment:
Probably worth to link directly to the following also (which is linked from
the article above)
https://stackoverflow.com/questions/10921210/cpu-tsc-fetch-operation-especially-in-multicore-multi-processor-environment
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