JingsongLi commented on a change in pull request #10396:
[FLINK-14063][table-planner-blink] Operators use fractions to decide how many
managed memory to allocate
URL: https://github.com/apache/flink/pull/10396#discussion_r353568214
##########
File path:
flink-table/flink-table-runtime-blink/src/main/java/org/apache/flink/table/runtime/operators/TableStreamOperator.java
##########
@@ -46,4 +47,13 @@ public void dispose() throws Exception {
super.dispose();
}
+ /**
+ * Compute memory size from memory faction.
+ */
+ public long computeMemorySize() {
+ double memFraction =
getOperatorConfig().getManagedMemoryFractionOnHeap() +
+
getOperatorConfig().getManagedMemoryFractionOffHeap();
+ MemoryManager memManager =
getContainingTask().getEnvironment().getMemoryManager();
+ return ((long) memManager.computeNumberOfPages(memFraction)) *
memManager.getPageSize();
Review comment:
Good to know `MemoryManager#computeMemorySize` has to be introduced.
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