rui-mo commented on code in PR #9350:
URL: https://github.com/apache/incubator-gluten/pull/9350#discussion_r2053817079
##########
backends-velox/src/main/scala/org/apache/gluten/execution/RowToVeloxColumnarExec.scala:
##########
@@ -168,35 +165,28 @@ object RowToVeloxColumnarExec {
val rowLength = new ListBuffer[Long]()
var rowCount = 0
var offset = 0L
- val sizeInBytes = row.getSizeInBytes
- // allocate buffer based on 1st row, but if first row is very big,
this will cause OOM
- // maybe we should optimize to list ArrayBuf to native to avoid buf
close and allocate
- // 31760L origins from
BaseVariableWidthVector.lastValueAllocationSizeInBytes
- // experimental value
- val estimatedBufSize = Math.max(
- Math.min(sizeInBytes.toDouble * columnBatchSize * 1.2, 31760L *
columnBatchSize),
- sizeInBytes.toDouble * 10)
- arrowBuf = arrowAllocator.buffer(estimatedBufSize.toLong)
- Platform.copyMemory(
- row.getBaseObject,
- row.getBaseOffset,
- null,
- arrowBuf.memoryAddress() + offset,
- sizeInBytes)
- offset += sizeInBytes
- rowLength += sizeInBytes.toLong
- rowCount += 1
-
- convertTime += System.currentTimeMillis() - start
while (rowCount < columnBatchSize && !finished) {
- val iterHasNext = it.hasNext
- if (!iterHasNext) {
+ // The first row does not need to call it.hasNext, otherwise metrics
will be updated repeatedly.
+ if (rowCount != 0 && !it.hasNext) {
Review Comment:
> // The first row does not need to call it.hasNext, otherwise metrics will
be updated
// repeatedly.
Can you please share more details about the issue you met here? Which
metrics are updated repeated, the R2C operators' or the children operators'?
--
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: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
