kazuyukitanimura commented on code in PR #1702:
URL: https://github.com/apache/datafusion-comet/pull/1702#discussion_r2070493011
##########
spark/src/main/scala/org/apache/comet/CometExecIterator.scala:
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@@ -130,6 +134,21 @@ class CometExecIterator(
def getNextBatch(): Option[ColumnarBatch] = {
assert(partitionIndex >= 0 && partitionIndex < numParts)
+ if (memoryProfilingEnabled) {
+ val memoryMXBean = ManagementFactory.getMemoryMXBean
+ val heap = memoryMXBean.getHeapMemoryUsage
+ val nonHeap = memoryMXBean.getNonHeapMemoryUsage
+
+ def mb(n: Long) = n / 1024 / 1024
+
+ // scalastyle:off println
+ println(
+ "JVM_MEMORY: { " +
+ s"heapUsed: ${mb(heap.getUsed)}, heapCommitted:
${mb(heap.getCommitted)}, " +
+ s"nonHeapUsed: ${mb(nonHeap.getUsed)}, nonHeapCommitted:
${mb(nonHeap.getCommitted)} " +
+ "}")
Review Comment:
Perhaps `logInfo` ?
If println is preferred, we may have to add back `// scalastyle:on println`
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