asimsedhain commented on code in PR #9015:
URL: https://github.com/apache/arrow-datafusion/pull/9015#discussion_r1508598424
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datafusion/execution/src/memory_pool/pool.rs:
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@@ -54,7 +58,44 @@ impl MemoryPool for UnboundedMemoryPool {
#[derive(Debug)]
pub struct GreedyMemoryPool {
pool_size: usize,
- used: AtomicUsize,
+ meta: Mutex<SimplePool>,
+}
+
+// Simple struct that tracks memory usage across multiple consumers.
+// Can be used in composition with other fields for providing more
sophisticated memory pool
+// policies
+#[derive(Debug, Default)]
+struct SimplePool {
+ // Maps consumer names to the amount of memory they use.
+ pool_members: HashMap<String, usize>,
+ // The total memory usage of all consumers.
+ total_size: usize,
Review Comment:
✅
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